A soccer player kicks a ball with 1500 N of force. The ball exerts a reaction force against the player's foot of A. somewhat less than 1500 N. B. 1500 N. C. somewhat more than 1500 N. D. None of the above.
Answers
A. somewhat less than 1500 N. When a soccer player kicks a ball with 1500 N of force, the ball exerts a reaction force against the player's foot of somewhat less than 1500 N.A soccer player kicks a ball with 1500 N of force. The ball exerts a reaction force against.
the player's foot of somewhat less than 1500 N. The player's foot applies a force of 1500 N to the ball while kicking it. The ball reacts by applying a force of somewhat less than 1500 N on the player's foot. A. somewhat less than 1500 N. This is the reaction force that the ball exerts against the player's foot. Thus, the option A is the correct to the given It is important to know that the reaction force exerted by the ball will always be less than the force applied by the player's foot on the ball a soccer player kicks a ball, the player's foot applies a force to the ball.
According to Newton's third law of motion, the ball also applies a reaction force to the player's foot. This reaction force is equal in magnitude and opposite in direction to the force applied by the player's foot on the ball. Hence, the reaction force exerted by the ball on the player's foot will be somewhat less than 1500 N given statement describes that when a soccer player kicks a ball with a force of 1500 N, the ball exerts a reaction force on the player's foot. The reaction force exerted by the ball will always be less than the force applied by the player's foot on the ball. Thus, the correct answer to the given question is A. somewhat less than 1500 N.
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Related Questions
which curve accurately describes the hydrostatic force distribution along the tank wall of a static fluid?
Answers
The curve that accurately describes the hydrostatic force distribution along the tank wall of a static fluid is a parabolic curve.
This curve represents the hydrostatic pressure distribution, which increases linearly with depth below the fluid surface.
In a static fluid, the hydrostatic pressure at any point depends only on the depth and the density of the fluid.
As the depth increases, so does the pressure, creating a parabolic distribution of pressure along the tank wall.
The highest pressure is at the bottom of the tank, where the depth is greatest, while the pressure decreases as the height above the fluid surface increases.
The parabolic distribution of pressure is commonly observed in a variety of applications, including in water tanks, swimming pools, and dams.
It is important to accurately calculate the hydrostatic pressure distribution in order to ensure the structural integrity of these systems and prevent any potential failures or leaks.
Overall, the parabolic curve accurately describes the hydrostatic force distribution along the tank wall of a static fluid due to the linear increase in pressure with depth below the fluid surface.
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Not having to worry about your health, job, or being attacked are related to this level
of needs.
Answers
Answer:
This level of needs is known as safety needs. Safety needs are the need for security, stability, and protection from physical and emotional harm. These needs include physical safety, financial security, health and well-being, and protection from discrimination and harassment.
Explanation:
A satellite with a mass of 5.60 E5 kg is orbiting the Earth in a circular path at 7.037E 6 meters from
the center of earth. It is moving at 7.50 E3 m/s. Determine the satellite's acceleration. (3 points)
a)7.99 m/s2
b)01.07 E-3 m/s2
c)O 1.14 E-6 m/s2
d)4.48 E6 m/s2
Answers
Answer:7.99 m/s^2
Explanation:
A force F has components Fx = 100 Newtons, and Fy= 153.2 Newtons. Express F in terms of unit
vectors and find its magnitude and angle
Answers
The magnitude of the unit vector of the forces is 182.92 N and the direction is 56.87⁰.
What is a unit vector?A unit vector is a type of quantity that has both magnitude and direction.
A unit vector can also be described as a single vector that can represent two vectors in terms of magnitude and direction.
What is resultant vector?A resultant vector is defined as a single vector that produces the same effect as is produced by a number of vectors collectively.
The unit vector of the two forces is calculated as follows;
R² = Fx² + Fy²
where;
Fx is the force in horizontal directionFy is the force in vertical directionR is the resultant vectorR = √( Fx² + Fy²)
R = √( 100² + 153.2²)
R = 182.95 N
What is the direction of the vector?The direction of the vector is calculated as follows;
θ = arc tan (Fy/Fx)
θ = arc tan (153.2 / 100)
θ = 56.87⁰
Thus, the magnitude of the unit vector of the forces is 182.92 N and the direction is 56.87⁰.
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o is 0.256 aj for a copper complex, what wavelength of light (in nm) is absorbed when an electron from a lower energy d orbital is promoted to a higher energy d orbital?
Answers
The wavelength of light absorbed by the copper complex when an electron is promoted from a lower energy d orbital to a higher energy d orbital is 231 nm.
To determine the wavelength of light absorbed by a copper complex when an electron is promoted from a lower energy d orbital to a higher energy d orbital, we need to use the formula:
ΔE = hc/λ
Where ΔE is the energy difference between the two orbitals, h is Planck's constant, c is the speed of light, and λ is the wavelength of the absorbed light.
We know that the energy change (ΔE) is equal to the energy of the higher orbital minus the energy of the lower orbital. Since the question states that the energy change is 0.256 aj, we can assume that this is the value of ΔE.
We also know that the energy of an electron is related to its wavelength by the equation:
E = hc/λ
Therefore, we can rearrange this equation to solve for the wavelength:
λ = hc/E
Substituting the value of ΔE into this equation, we get:
λ = hc/ΔE
Plugging in the values of h, c, and ΔE, we get:
λ = (6.626 x 10^-34 J.s) x (2.998 x 10^8 m/s) / (0.256 x 1.602 x 10^-19 J)
Simplifying this equation, we get:
λ = 2.31 x 10^-7 m = 231 nm
Therefore, the wavelength of light absorbed by the copper complex when an electron is promoted from a lower energy d orbital to a higher energy d orbital is 231 nm.
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Why is wrestling ring floor always softThis is physics
Answers
Answer:
So the people in the ring don't get hurt or break anything on impact once they hit the floor
why are force and velocity different?
Answers
Answer: If you apply force to an object the velocity changes. But it doesn't work the other way around apply velocity and the force (no!) Velocity does not change on an object. A force pushes or pulls on an object, but velocity is simply something an object has I hope this makes sense to you. Hope this helps :)
Explanation:
The moon completes one (circular) orbit of the earth in 23.7 days. The distance from the earth to the moon is 3.84×10^8m. Calculate the centripetal acceleration.
Answers
Given that distance of moon from the earth is, R= 3.84 x 10^8 m
Also, time taken to complete one revolution is, T= 23.7 days = 2047680 seconds
Mass of the moon is, m= 7.347 Kg
To find the centripetal acceleration,
\(a_c=\frac{m4\pi^2R}{T}\)Substituting the values, we get
\(undefined\)In the circuit shown, the AC voltage source supplies an rms voltage of 115 at frequency of 50 Hz. The circuit has R1= 3.45 k? and C = 1 ?F.
1) What is the rms current in the circuit?
Irms= ___ 2) What is the average power consumed by the circuit?
Pavg= ___
3) What is phase angle between the current and the voltage?
Answers
To solve this problem, we need to use the formula for calculating the current in an AC circuit that contains a resistor and a capacitor in series. The formula is:
I = V/Z
where I is the current, V is the voltage, and Z is the impedance of the circuit, which is given by:
Z = sqrt(R^2 + (1/ωC)^2)
where R is the resistance, C is the capacitance, and ω is the angular frequency, which is equal to 2πf, where f is the frequency in hertz.
Using the given values, we can calculate the current in the circuit as follows:
R = 3.45 kΩ = 3450 Ω
C = 1 μF = 1 × 10^-6 F
f = 50 Hz
ω = 2πf = 2π × 50 = 314.16 rad/s
Z = sqrt((3450)^2 + (1/(314.16 × 1 × 10^-6))^2) = 109.12 Ω
I = V/Z = 115/109.12 = 1.054 A (to three significant figures)
Therefore, the rms current in the circuit is 1.054 A.
To calculate the average power consumed by the circuit, we can use the formula:
Pavg = Irms^2R
where R is the resistance of the circuit.
Pavg = (1.054)^2 × 3450 = 3,809 W (to three significant figures)
Therefore, the average power consumed by the circuit is 3,809 W.
To find the phase angle between the current and the voltage, we can use the formula:
tan(θ) = 1/(ωCR)
θ = tan^-1(1/(314.16 × 1 × 10^-6 × 3450)) = 0.025 radians (to three significant figures)
Therefore, the phase angle between the current and the voltage is 0.025 radians.
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help me which one is the right answer?
Answers
Answer:
The correct option is (b).
Explanation:
The ideal gas law is given by :
\(PV=nRT\)
Where
P, V and T are pressure, volume and temperature of the gas
R is gas constant
\(V=\dfrac{nRT}{P}\)
If n,R and P are constant,
\(V\propto T\)
i.e.
At constant pressure, the volume of a gas is directly proportional to its temperature. Hence, the correct option is (b).
during which lunar phase does every solar eclipse occur?
Answers
Answer:
It has to be the "New Moon" because that is when the moon is between the sun and the earth.
A lunar eclipse can occur when the earth is between the sun and the moon.
a cat walks along a uniform plank that is 4.00 m long and has a mass of 7.00 kg. the plank is supported by two sawhorses, one 0.44 m from the left end of the board and the other 1.52 m from its right end. when the cat nears the right end, the plank just begins to tip. if the cat has a mass of 4.7 kg, how close to the right end of the two-by-four can it walk before the board begins to tip? ans: 0.805 m
Answers
If the cat has a mass of 4.7 kg, close to the right end of the two-by-four can it walk before the board begins to tip is 1 metre.
(7 x 9.8)/4 = weight of 17.15N. per metre length of board (9.8 = g).
Considering the right sawhorse as the pivot, the torques on the board alone are as follows:
Left end = 2.5m. long.
Its CM is 1.25m. from the sawhorse.
Its weight is 42.875N.
Torque CCW = (42.875 x 1.25m) = 53.59375N/m.
Right end = 1.5m. long.
Its CM is 0.75m. from the sawhorse. Its weight is 25.725N.
Torque CW = (0.75 x 25.75) = 19.3125N/m.
Difference in torques = (53.59375 - 19.3125) = 34.28125N/m.
This is the maximum torque the cat can apply to the right end before the board tips.
(7 x 9.8) = 68.6N. cat weight.
Max. distance from sawhorse = (34.28125/68.6) = 0.4997m.
Round = 0.5M.
Distance from right end = (1.5 - 0.5) = 1 metre.
Torque refers to the twisting force that is exerted on an object, causing it to rotate around an axis or pivot point. It is a measure of how much force is applied to a lever arm, which is the distance between the axis of rotation and the point where the force is applied.
Torque is often associated with machinery and mechanical systems, such as engines, motors, and turbines. It is used to describe the rotational force that is generated by these systems, which can be used to perform work or drive other mechanisms. Torque is a fundamental concept in mechanics that describes the rotational force generated by an object. It is a crucial factor in many engineering applications, including automotive and industrial systems, and plays a critical role in the operation and performance of machinery.
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How can you drop two eggs the fewest amount of times, without them breaking?
Answers
Answer:
Both eggs are identical. The aim is to find out the highest floor from which an egg will not break when dropped out of a window from that floor. If an egg is dropped and does not break, it is undamaged and can be dropped again. However, once an egg is broken, that's it for that egg.
Which word fits in this sentence:
A __________ is how long it takes for one of the planets to go around the sun one time. Earth takes 365.25 days to go around the sun one time. We call this a _______.
A: revolution, year
B: year, revolution
Answers
Answer:
B because thats the answer
hey besties, im having a mental breakdown on this question. pls help :D
A tennis ball with a speed of 28.4 m/s is
moving perpendicular to a wall. After striking
the wall, the ball rebounds in the opposite
direction with a speed of 26.412 m/s.
If the ball is in contact with the wall for
0.0158 s, what is the average acceleration of
the ball while it is in contact with the wall?
Take “toward the wall” to be the positive
direction.
Answer in units of m/s
2
Answers
With "toward the wall" designated as the positive direction, the average acceleration felt the ball in the 0.0158 s of contact with the wall is
\(a_{\rm ave} = \dfrac{-26.412\frac{\rm m}{\rm s} - 28.4\frac{\rm m}{\rm s}}{0.0158\,\mathrm s} ≈ \boxed{-3470 \dfrac{\rm m}{\mathrm s^2}}\)
1. What type of energy transformation best fits what happens in a paper shredder?
Answers
Answer:
electrical- mechanical
Explanation:
Smartness 1,000
Friend me too
the hydrometer reading for a fully charged battery is:
Answers
The hydrometer reading for a fully charged battery provides an indication of the battery's electrolyte density, which is measured as specific gravity.
Specific gravity is the ratio of the density of a substance to the density of a reference substance, typically water. In the context of batteries, the specific gravity of the electrolyte can be measured using a hydrometer.
A fully charged battery typically has a specific gravity reading in the range of 1.265 to 1.280, or 12.6 to 12.8 on the hydrometer scale. This range may vary slightly depending on the type and manufacturer of the battery. The specific gravity reading is directly related to the concentration of sulfuric acid in the battery electrolyte.
During the charging process, chemical reactions occur within the battery, converting lead plates and lead dioxide plates into lead sulfate. This reaction increases the concentration of sulfuric acid in the electrolyte, resulting in a higher specific gravity reading.
When a battery is fully charged, the specific gravity reading reaches its maximum value because the concentration of sulfuric acid is at its highest. This indicates that the battery has stored the maximum amount of energy possible and is in optimal condition.
However, it's worth noting that newer maintenance-free batteries or sealed batteries may not have easily accessible electrolyte for measurement with a hydrometer. In such cases, other indicators such as voltage readings or battery health indicators provided by the manufacturer may be used to determine the battery's charge level.
It's essential to consult the battery manufacturer's guidelines or specific battery documentation to obtain accurate hydrometer readings for a fully charged state. This ensures proper maintenance and monitoring of the battery's health and performance.
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found at the higher frequency end of the radio spectrum, but they are commonly distinguished from radio waves because of the technologies used to access them
what wave is this called
Answers
Answer:
stealing my points back
Explanation:
Conclusion for simple pendulum with aim to determine acceleration due to gravity
Answers
In conclusion, the experiment aimed to determine the acceleration due to gravity by measuring the period of a simple pendulum. The experiment was performed by measuring the length of the pendulum and recording the time for 10 oscillations. The data was then used to calculate the average period and subsequently, the acceleration due to gravity using the formula: g = (4π²L)/T².
Based on the results obtained, the acceleration due to gravity was found to be (9.79 ± 0.06) m/s², which is in good agreement with the accepted value of 9.81 m/s². The small discrepancy could be due to the experimental errors such as air resistance, friction and measurement errors.
Overall, the experiment was successful in determining the acceleration due to gravity using a simple pendulum and demonstrated the relationship between the period and the length of the pendulum.
what could be the plot of a story about planets/ astronomy?
Answers
Answer:
Some stars in space can come to life causing humans to be amazed but at thesame time in great/critical danger.
Answer:
I’m glad you asked!
Explanation:
So let’s just say it is Fiction.Science fiction is perfect because it is with space and science,but it is fiction.
Science fiction!
. A rock is thrown vertically upwards at 67 km/h. Find the height at which the rock is
going 23 km/h [down]. (DON'T FORGET UNITS CONVERSION)
Answers
The height at which the rock is going 23 km/h downwards be 15.59 m.
What is law of conservation of energy?Energy cannot be created or destroyed, according to the rule of conservation of energy. However, it is capable of change from one form to another. An isolated system's total energy is constant regardless of the types of energy present. The law of energy conservation is adhered to by all energy forms.
The law of conservation of energy essentially says that: The total energy of the system is conserved in a closed system, also known as an isolated system.
Given that: A rock is thrown vertically upwards at 67 km/h = 18.6111 m/s.
We have to find its height, when downwards velocity is 23 km/h = 6.389 m/s.
Let the mass of the rock be m and using law of conservation of energy:
1/2 m (18.6111)² = mgh + 1/2m(6.389)²
⇒ h = (18.611² - 6.389²)/(2×9.8) m = 15.59 m.
Hence, the height at which the rock is going 23 km/h downwards be 15.59 m.
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____________ are forces in which two interacting objects are physically in contact with each other; examples include ___________ and ______________. a. Contact forces , friction, air resistance c. Action-at-a-distance fields , gravity, electric field b. Contact forces , gravity, electric field d. None of the above. Please select the best answer from the choices provided A B C D
Answers
a. Contact forces, friction, air resistance
calculate the pressure exerted by a force of 42N on a surface of 3m length and 2m bredth.[will be marking brainliest and following right answer..]
Answers
Answer:
Pressure, P = 7 Pa
Explanation:
Given that,
Force exerted on the surface, F = 42 N
Length, l = 3 m
Width, b = 2 m
We need to find the pressure exerted by this force. We know that, pressure is equal to force per unit area. So,
\(P=\dfrac{F}{l\times b}\\\\P=\dfrac{42}{3\times 2}\\\\P=7\ Pa\)
So, the required pressure is equal to 7 Pa.
Hello people ~
The frequency of subsonic sound is
(a) more than 20 Hz
(b) 100 Hz
(c) less than 20 Hz
(d) more than 20,000 Hz
Answers
less than 20 Hz
The frequency of subsonic sound is less than 20 Hz
subsonic sound refers to a sound which has a wave that travels slower than the speed of sound.
frequency of audible sound: 20 Hz to 20,000 HzThus subsonic sound < 20 Hz
Answer:
less than 20Hz
Explanation:
Human ears can hear sounds coming in range of 20Hz to 20000Hz or 20kHz.Low or beneath is not audible.Bats can hear below 20Hz ,so they use this to travel in air
A car travels at a steady speed of 10 m/s. What distance is covered in a minute?
Answers
Answer:
600
Explanation:
You multiply it by 60 because it is saying that it travels 1 mile per second and there are 60 seconds in one minute.
Evelyn is making a model of Earth to show how the physical layers correspond to the compositional layers. Which of the following should Evelyn show in her model?
The physical layers exactly match the compositional layers.-A
The crust is the only compositional layer not included in the physical layers. -B
The physical layers of the inner core and outer core form a single compositional layer. -C
The physical layer of the asthenosphere includes the compositional layer of the crust.-D
on a test need it asap.
I'll report u if u don't give the answer and just want the points.
Answers
Answer:
B
Explanation:
An object falls 5 meters with a force of 980 newtons. How much work has gravity done?
Answers
Answer:
The answer is 4900 JExplanation:
The work done by an object can be found by using the formula
workdone = force × distance
From the question we have
workdone = 980 × 5
We have the final answer as
4900 JHope this helps you
A loaded spring launches a 2.50 kg block, using a force of 450 N. If the change in
momentum is 12.0 kg*m/s, how long was the block in contact with the spring?
Answers
Answer:
37.5 seconds
Explanation:
The given parameters are;
The mass of the block on the spring, m = 2.50 kg
The force with which the loaded spring launches the block, F = 450 N
The change in momentum of the block, Δp = 12.0 kg·m/s
We have;
Let the force with which the block was launched = The net force, \(F_{NET}\)
By Newton's second law of motion, we have;
F = \(F_{NET}\) = Δp × Δt
Where;
Δt = The time the block is in contact with the spring
Therefore;
\(\Delta t = \dfrac{F_{NET}}{\Delta p}\)
By plugging in the values for \(F_{NET}\) and Δp, we have;
\(\Delta t = \dfrac{450 \ N}{12.0 \ kg \cdot m/s} = 37.5 \ s\)
The time duration the block is in contact with the spring, Δt = 37.5 seconds.
Help plz!! I’ll give brainlist!! I need it fast plz
Answers
Answer:
1.A
2.E
3.C
4.i think A
Explanation:
2. E
3. B
4. D
the horizontal is on the left.
vertical is on the right.
for number one it says where was the speed zero? look at the line, A is at the bottom and horizontal is there.
same applies to the vertical which you get the answer E
97.6 97.7 ! Temperature (°F) at 8 AM 98.3 Temperature (°F) at 12 AM 99.1 98.8 99.2 97.1 97.4 97.8 97.2 Listed below are body temperatures from five different subjects measured at 8 AM and again at 12 AM. Find the values of dands. In general, what does Hd represent? Temperature (F) at 8 AM 99.3 98.8 97.6 97.7 97.1 Temperature (°F) at 12 AM 99.1 99.2 97.8 972 97.4 Let the temperature at 8 AM be the first sample, and the temperaturo at 12 AM be the second sample. Find the values of d and is Type an integer or a decimal. Do not round)
Answers
The value of the mean of all values of d (Hd) is -0.04.
As per data the following temperatures,
Temperature (°F) at 8 AM 98.3
Temperature (°F) at 12 AM 99.1 98.8 99.2 97.1 97.4 97.8 97.2
Temperature (F) at 8 AM 99.3 98.8 97.6 97.7 97.1
Temperature (°F) at 12 AM 99.1 99.2 97.8 972 97.4
Let the temperature at 8 AM be the first sample, and the temperature at 12 AM be the second sample. Then,
d = x₂ - x₁
Now, we need to find the values of d for all five subjects.
Therefore, d is as follows:
d₁ = 99.3 - 99.1
= 0.2
d₂ = 98.8 - 99.2
= -0.4
d₃ = 97.6 - 97.8
= -0.2
d₄ = 97.7 - 97.2
= 0.5
d₅ = 97.1 - 97.4
= -0.3
In general, Hd represents the mean of all values of d.
Thus, the value of Hd is:
Hd = (0.2 + -0.4 + -0.2 + 0.5 + -0.3) / 5
= -0.04
Thus, the value of Hd is -0.04.
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