The reading on a metronome indicates the number of oscillations per minute. What are the frequency and period of the metronome's vibration when the metronome is set at 180?​

The total charge can be obtained by integrating the charge density λ(x) over the length of the rod from -6 cm to 6 cm. Total charge on the rod is 0 C.

The total charge on the rod can be calculated by using the formulaQ = λL, where Q is the total charge, λ is the linear charge density, and L is the length of the rod. Using the formula λ(x)=(6.5nC/cm)e−∣∣x∣∣/(6.0cm), we getλ(x)=(6.5nC/cm)e−∣∣x∣∣/(6.0cm) = λ(x)=(6.5 × 10⁻⁹ C/cm)e−∣∣x∣∣/(6.0cm).

The total charge can be obtained by integrating the charge density λ(x) over the length of the rod from -6 cm to 6 cm. We use the absolute value sign for the integration because the charge density has an absolute value sign in its definition.

So,Q = ∫|λ(x)|dx = ∫₀⁶λ(x)dx + ∫₋⁶⁰λ(x)dx= ∫₀⁶(6.5 × 10⁻⁹ C/cm)e−x/(6.0cm)dx + ∫₋⁶⁰(6.5 × 10⁻⁹ C/cm)e⁺x/(6.0cm)dx... (1)Where x is measured from the center of the rod.Using the substitution u = x/(6 cm), dx = 6 cm du, and changing the limits of integration, we get,Q = 6.5 × 10⁻⁹ C ∫₀¹e⁻udu + 6.5 × 10⁻⁹ C ∫⁻¹₀e⁺udu... (2)Integrating (2), we getQ = 1.65 × 10⁻⁸ C - 1.65 × 10⁻⁸ C = 0 C. Therefore, the total charge on the rod is 0 C.

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The charge q must be placed at the origin so that the electric field vanishes at x = 0, y = 3.0 m will be q₃ = -2.83x10⁻⁶

tan θ = 3/3 = 1

As a result of this, θ = 45°

The distance between q1 (or q2) and the point (0,3) is calculated by

d² = 3² + 3² = 18m²

Let us calculate the magnitude of q1 or q2's electric:

E = Kq1 /d² = Kq2/d²

E = 9.10⁹ X 4.10⁻⁶/8

E = 2000N/c

Both fields' vertical components are given by

Ey = 2000 cos 45°

= 1414.21

The total field generated by q1 and q2 is twice that amount.

Eyt = 2828.42 N/c

That should be the value of E3 to make the entire field disappear (equal to 0)

E₃ = Kq₃/d²₃ = 2828.42

Trying to figure out q3

q₃ = 2828.42.d²₃ = 2828.42 x 3²/9.10⁹

q₃ = -2.83x10⁻⁶

We already knew that the sign of q3 had to be negative.

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Answer:

not really, by the time you get to your car it would have already hit you in the head and knock you plum out.

Explanation:

No.

And add me as friend.

The incremental change in Fahrenheit (Δ°F) that corresponds to a temperature change from 15°C to 35°C is 36°F

To calculate the incremental change in Fahrenheit (°F) from a temperature change in Celsius (°C), we use the formula:

Δ°F = Δ°C * (9/5)

In this case, the initial temperature is 15°C, and the final temperature is 35°C. To determine the incremental change in Celsius (Δ°C), we subtract the initial temperature from the final temperature:

Δ°C = 35°C - 15°C = 20°C

Now, we can use the formula to convert the incremental change in Celsius to Fahrenheit:

Δ°F = 20°C * (9/5) = 36°F

Therefore, a temperature change from 15°C to 35°C corresponds to an incremental change of 36°F. This conversion factor (9/5) comes from the relationship between the Celsius and Fahrenheit scales, as they have different zero points and scaling factors.

Specifically, the Celsius scale has a zero point at the freezing point of water (0°C), while the Fahrenheit scale has its zero point at a lower temperature (-32°F). Furthermore, a change of 1°C is equal to a change of 1.8°F, hence the 9/5 factor in the conversion formula.

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im don't know about it, but i can send you a link with a map if you want

Yes, when objects touch each other at rest, there will be a normal force acting between them. The normal force is a contact force exerted perpendicular to the surfaces in contact. It arises due to the repulsive forces between the atoms or molecules in the objects' surfaces.

When two objects are in contact at rest, the normal force prevents them from penetrating into each other. It acts in the direction perpendicular to the surfaces and balances the force applied by one object on the other. The normal force is equal in magnitude and opposite in direction to the force applied by one object on the other, as described by Newton's third law of motion.

So, even if the objects are at rest, there will be a normal force present between them to maintain contact and prevent them from passing through each other.

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The focal length of a magnifying glass can be calculated using the formula: magnification = (1 + (D/f)), where D is the distance between the object and the lens, f is the focal length of the lens.

Rearranging the formula to solve for f, we get: f = D/(magnification - 1).

Given that the angular magnification is 7.0 x and the near point of the person is at 28 cm, we can assume that the object is at the near point of the person, i.e., D = 28 cm. Substituting the values, we get f = 4 cm.

Therefore, the focal length of the magnifying glass that produces an angular magnification of 7.0 x when used by a person with a near point at 28 cm is 4 cm.

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A stationary proton is in a uniform magnetic field of 0.20 t. What is the magnitude of the magnetic force on the proton is zero.

Magnetic Field is the region around a magnetic material or a moving electric charge within which the force of magnetism acts.

Magnetic field, B = 0.2 T

Magnetic Force, F = B × v × q,

Here, v = speed = 0,

Hence, the magnetic force on the proton by the above formula,

⇒ F = B v q = 0.

What is the shape of magnetic field lines?

The shape of the magnetic field lines is of around a straight current carrying conductor.

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The ratio of the log's mass to the duck's mass is 0.667.

Let's assume the mass of the duck is represented by M_duck and the mass of the log is represented by M_log.

The duck is moving 2.50 times faster than the log.

The log has 3.75 times the kinetic energy of the duck.

We can use the formulas for kinetic energy and the relationship between velocity and kinetic energy to derive equations based on the given information.

The kinetic energy of an object is given by the formula:

Kinetic energy (KE) = (1/2) * mass * velocity^2

Let's denote the velocity of the duck as v_duck and the velocity of the log as v_log.

From the given information, we have the following relationship:

v_duck = 2.50 * v_log (Equation 1)

The kinetic energy of an object is directly proportional to the square of its velocity. Therefore, we can write the following equation based on the given information about the kinetic energy:

(1/2) * M_log * v_log^2 = 3.75 * (1/2) * M_duck * v_duck^2 (Equation 2)

Substituting Equation 1 into Equation 2:

(1/2) * M_log * v_log^2 = 3.75 * (1/2) * M_duck * (2.50 * v_log)^2

Simplifying the equation:

M_log * v_log^2 = 3.75 * M_duck * (2.50^2) * v_log^2

M_log = (3.75 * M_duck * (2.50^2) * v_log^2) / v_log^2

M_log = 9.375 * M_duck

Therefore, the ratio of the log's mass to the duck's mass is 0.667 (M_log / M_duck = 9.375 / 14.0625 = 0.667).

The ratio of the log's mass to the duck's mass is approximately 0.667. This is obtained by using the given information about the velocities and kinetic energies of the duck and the log, and deriving equations to calculate the mass ratio.

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Answer:

sun is the main source while the other object reflect light on the sun

Explanation:

nasa libro yans

In the process of making pancakes, the three steps that best show that new substances are created are: Steps 3, 4, and 5. The correct option is B.

These steps involve seeing bubbles form as the pancake starts to harden, waiting until the bubbles stop forming, and flipping the pancake so the other side can darken and harden.

During Step 3, the formation of bubbles indicates a chemical reaction taking place, as the heat causes the pancake batter to release carbon dioxide gas. This leads to the creation of a new substance: the cooked pancake. Step 4, waiting for the bubbles to stop forming, further demonstrates the chemical changes occurring as the batter continues to cook and transform.

Lastly, in Step 5, flipping the pancake allows the other side to darken and harden, completing the cooking process and solidifying the new substance: a fully cooked pancake. The correct option is B.

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Yes, an impulse is defined as the change in momentum of an object. When an external force is applied to an object for a period of time, the object's momentum changes.

The impulse is equal to the change in momentum, and it is equal to the force multiplied by the time over which the force was applied. Mathematically, the impulse is given by the formula:

Impulse = Force x Time

And the momentum of an object is given by the formula:

Momentum = Mass x Velocity

So, if a force is applied to an object for a time period and the object's velocity changes as a result, then the impulse experienced by the object is equal to the change in momentum. This can be expressed as:

Impulse = Final Momentum - Initial Momentum

where the final momentum is the momentum of the object after the force is applied, and the initial momentum is the momentum of the object before the force is applied.

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The water travels 2.1 m horizontally and drops by a height of (1.6 - 0.93) m, or 0.67 m. Considering that the water's initial horizontal velocity is V.

Initial and Final Velocity Initial velocity is the speed at which an item moves when the force of gravity is applied for the first time. The final velocity, on the other hand, is a vector number that gauges the speed and direction of a moving object after it has experienced its maximum acceleration.

Assuming V to be the initial horizontal velocity of the water you have.

V = 2.1/t . . . . . . (1) and

0.67 = (1/2)g*t^2 . . . . . . (2) where

g is the gravitational constant 9.81 m/s/s

(2) => t = 0.3696 sec and

The Velocity V = 5.682 m/s

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Answer:

CO2 + H2O + O2

Explanation:

The correct statement that identifies the products of photosynthesis is C6H12O6 + O2. In photosynthesis, carbon dioxide, water, and light are used to produce glucose and oxygen.

Photosynthesis is a biological process that converts light energy, usually from the Sun, into chemical energy in plants, algae and certain types of bacteria. The photosynthesis formula is usually depicted as: 6CO2 + 6H2O + light energy = C6H12O6 + 6O2. This means that the correct statement that identifies the products of photosynthesis is C6H12O6 + O2. In this reaction, carbon dioxide (CO2), water (H2O) and light are used to produce glucose (C6H12O6) and oxygen (O2). The glucose is used by the plant for energy and growth while oxygen is a byproduct released into the atmosphere.

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Answer:

Give them assignment on the pandemic.

Explanation:

If you wish, each student can talk about some other aspect of the pandemic that seems important and interesting then you have to give them the assignment of presentation and give reward on them. The students will definitely make the presentation on other aspects of the pandemic and when they present it in the class it enhance the knowledge of other students as well.

Light in a vacuum travels approximately 1.05 x \(10^{8}\) meters in 0.350 seconds. The answer is (C) 1.05 x \(10^{8}\) m.

What is speed of the light?

The speed of light in a vacuum is approximately 3.00 x \(10^{8}\) m/s. To find how far light travels in 0.350 s, we can use the formula:

distance = speed x time

Substituting the values, we get:

distance = (3.00 x \(10^{8}\) m/s) x (0.350 s)

distance = 1.05 x \(10^{8}\) m

Therefore, light in a vacuum travels approximately 1.05 x \(10^{8}\) meters in 0.350 seconds. The answer is (C) 1.05 x \(10^{8}\) m.

In general, the speed of light is approximately 299,792,458 meters per second in a vacuum. This value is often denoted as "c" in scientific equations and is considered to be a fundamental constant of the universe. It is the fastest speed at which any energy or information can be transmitted, and it plays a crucial role in many areas of physics and engineering, including optics, relativity, and telecommunications.

What is vacuum?

Vacuum is a term used to describe a space or environment where there is no matter or air present. It is a state of emptiness or absence of any particles, atoms, or molecules. In practical terms, a vacuum is created by removing all air or gases from an enclosed space using a vacuum pump or other specialized equipment. This can be useful in a wide range of applications, including scientific experiments, electronics manufacturing, and industrial processing. A vacuum is also used in some everyday devices, such as vacuum cleaners and vacuum-sealed food packaging.

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Answer:

13

Explanation:

6+4=10s

50+35=85

av speed=85/10=8.5m/s

Answer:

2.605m

Explanation:

Using the formula for calculating Range (distance travelled in horizontal direction)

Range R = U√2H/g

U is the speed = 4.8m/s

H is the maximum height = ?

g is the acc due to gravity = 9.8m/s²

R = 3.5m

Substitute into the formula and get H

3.5 = 4.8√2H/9.8

3.5/4.8 = √2H/9.8

0.7292 = √2H/9.8

square both sides

0.7292² = 2H/9.8

2H = 0.7292² * 9.8

2H = 5.21

H = 5.21/2

H = 2.605m

Hence the height of the ball from the ground is 2.605m

Answer:

It depends on 2 factors

the nature of the materials

the normal force.

Explanation:

It depends on 2 factors

the nature of the materials that are in friction and the treatment that they have followed. This factor is expressed by a numerical value called the coefficient of friction or friction.

the force exerted by one body on the other, that is, the normal force.

Answer:

120°

Explanation:

Given forces with magnitude F and F

Applying the parallelogram law of vector

Where resultant is given as :

R = √(A^2 + B^2 + 2ABCos Ф

WHERE A and B are two forces with angle Ф

F =√(F^2 + F^2 + 2F * F Cos Ф

Square both sides

F^2 = F^2 + F^2 + 2F^2 CosФ

F^2 - 2F^2 = 2F^2 CosФ

- F^2 = 2F^2 Cos Ф

Divide both sides by 2F^2

- 1 / 2 = CosФ

Cosine(theta) = - 1/2

Ф = cosi^-1 (-1/2)

Ф = 120°

Answer: When a bullet is fired from a gun, the gun gives off a force on the bullet in the forward direction. The force is called the action force. The bullet also gives an equal and opposite force on the gun in the backward direction. That's why when bullets fire out, the force from the bullet also creates a force back.

A landslide is the most harmful kind of mass movement and happens when rock and dirt suddenly slip down a steep slope.

While other landslides may only contain a tiny amount of rock and dirt, some landslides may contain enormous quantities of rock. The swift movement of a mixture of dirt, rock, and water is known as a mud flow.

The majority of slope failures can be caused by an excess of silt accumulating on the slope, in a subterranean canyon, or as a result of a shock such as an earthquake. There can be three kinds: (1) Slumping submarines Coherent blocks collapse and slide like landslides. The environment is impacted by mass movements in the following ways: (1) Earth's surface topography, especially the morphologies of mountain and valley systems.

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         The apparatus must be Positively Charged.

Charge interaction:

        1. opposite charge objects attract each other

        2. like charge object repel each other

        3. neutral object with any charges will attract each other.

  So, In the question it said that after rubbing on apparatus pith ball

   become negative charge which means it has gained the electron.

          Thus, the apparatus must have lose electron and would be

          positively charged.

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r

\(- \frac{mR^2 }{I } \ v\)Answer:

a)      w = - \(\frac{m r }{I} v\)  ,  b)   W = - ½ m_woman R² (1 + m_woman R / I²) v²

Explanation:

a) To solve this exercise, let's use the conservation of angular momentum.

We define a system formed by the table and the woman, therefore the torques are internal and the moment is conserved

initial instant. Before starting to move the woman

         L₀ = 0

final instant. After starting to move

         L_f = I w + m v r

the moment is preserved

        L₀ = L_f

         0 = Iw + m v r

         w = - \(\frac{m r }{I} v\)                    (1)

the direction of the angular velocity is opposite to the direction of the linear velocity, that is, counterclockwise

b) for this part we use the relationship between work and kinetic energy

        W = ΔK

in this case the initial speed is zero and the final speed of the table, using the relationship between linear and angular variables

         v = w r

we substitute

          W = 0 - ½ I_total w²

          I_total = I + m_{woman} R²

          W = - ½ (I + m_woman R²)  ( \(\frac{m_{woman} R}{I} \ v\)) ²

          W = - ½ (m_woman² R² + m_woman³ R³ / I²) v²

          W = - ½ m_woman R² (1 + m_woman R / I²) v²

Answer:

a) greater

smaller

Explanation:

empty space or vaccum the Electro magnetic wave travels the fastest.

Answer:

62.5 m

Explanation:

.......................................

Answer: The answer is D

Explanation: i had the same question and i just guessed and got it first try

Answer:

Explanation:

its D i have all my notes here and the top person of me is right :)