A box of mass m is pushed at an angle 0 by a force Fp along a frictionless surface. The box accelerates to the

right. What is the magnitude of the horizontal acceleration ?

Answer:

ok

Explanation:

Acceleration is defined as the rate of change of velocity.

Acceleration = (Change in velocity) / time taken

Acceleration = (Final velocity - initial velocity) / time

As the object velocity changes by the same amount in each second, it means the acceleration is constant.

Answer:

The sound waves from a radio speakers

Explanation:

With an object having a mass of 26.94 grams and a volume of 2.568 cubic centimeters, the object is likely to be made of aluminum.

Aluminum is the likely material for the object with a mass of 26.94 grams and a volume of 2.568 cubic centimeters. This conclusion is based on the fact that aluminum has a relatively low density, making it a plausible candidate for an object with these specifications.

Density is defined as mass per unit volume. By dividing the mass (26.94 grams) by the volume (2.568 cubic centimeters), we can calculate the density of the object. The density of aluminum is approximately 2.7 grams per cubic centimeter. Comparing this with the given density value, it becomes apparent that the calculated density is close to the known density of aluminum.

Therefore, it is reasonable to conclude that the object is made of aluminum.

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StickK is a platform that helps consumers achieve their goals by making a commitment contract.

The commitment contract is a binding agreement where the consumer sets a goal and selects a referee to hold them accountable. If they don't reach the goal, they will have to pay a penalty fee that they set themselves at the start of the contract. StickK's key features include personalized goal setting, social support, and a penalty system that motivates the user to stay committed.

StickK makes money through its penalty fees and affiliate marketing. The company has a viable business model as it has a growing user base and positive user feedback. If StickK went after a B2B approach, they would need to tailor their platform to a company's goals and work with HR departments to make sure the commitment contract is effective.

The main barrier to success for StickK is the low adoption rate as people may be hesitant to commit to a contract and pay a penalty. To overcome this barrier, StickK could focus on marketing and expanding their user base by partnering with fitness or wellness companies.

it is already proven to be successful and there is still room for growth. StickK can continue to improve and refine its features to attract more users and expand its market reach.

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By applying the relationship of side lengths to interior angles in a triangle, a possible measure of line segment TS is 4.0 ft.

In Geometry, the relationship of side lengths to interior angles in a triangle include the following:

Based on the above theory, we can logically deduce that angle GF < TS or TS > GF because 42° is greater than 56°.

TS > 3.2 ft.

Therefore, a possible measure of line segment TS is 4.0 ft.

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Complete Question:

In the triangles, TR = GE and SR = FE. If Line segment G F = 3.2 ft, which is a possible measure of Line segment TS? 1.6 ft 3.0 ft 3.2 ft 4.0 ft.

Diffraction of light, as it is used to describe light, occurs more explicitly when a light wave passes by a corner or via an opening or slit that is physically smaller than the wavelength of that light, if not even smaller.

The intensity pattern that appears on the lit screen is determined by the superposition principle. When the difference in pathways from the two slits to a location on the screen equals an integral number of wavelengths (0,, 2,...), constructive interference takes place.

Light passing through an object causes a little bending known as diffraction. the perimeter of anything. The degree of bending is influenced by the wavelength of light's size in relation to the opening's size.

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Answer:

48 million people get sick, 128,000 are hospitalized, and 3,000 die

Explanation:

Answer:

48 million is get sick from consuming contaminated food/water each 6ear

The Answer Is Displacement  

Answer the time you bee spending driving iss 795 because 895-795=100

Explanation:

Answer:

Explanation:

For example, improvements to energy efficiency and vehicle fuel economy, increases in wind and solar power, biofuels from organic waste, setting a price on carbon, and protecting forests are all potent ways to reduce the amount of carbon dioxide and other gases trapping heat on the planet.

The relative density of the substance is equal to the density of the substance concerning the density of the reference substance.

The relative density of the substance is known as the specific gravity.

Hence, option B is the correct answer.

Answer:

mars is a fourth planet of the sun and the second planet in the solar system

moon is a natural satellite of the earth it isthe fifth largest moon in the solar system

Answer: 125 m/s

Multiply 15 m/s by 5.0 minutes, because this will give you the product.

15 x 5.0 = 125.

Add the m/s sign to the 125. 125 m/s.

Answer = 125 m/s. Hope this helps!

Answer:

8) Heat energy is the form energy that is transferred from one object to another with different temperatures. Sun is the source of heat energy.

Answer:

Air resistance is pushing up on the parachute and force of gravity is pulling down so she slows down. This increases friction which slows free fall down. So when the skydiver reaches terminal velocity, the force of gravity is balance by air resistance. But when the forces are balance, there is no acceleration.

A performance protocol for the truck test can be developed by considering the following factors: the distance to the point of accident, the truck's acceleration, and its deceleration.

Based on real data from fire trucks, it is not recommended to purchase a truck with a more powerful engine, as the decrease in response time would not be significant enough to justify the increased cost.

The performance protocol for the truck test can be developed by considering the following factors:

The distance to the point of accident: This is the maximum distance that the truck needs to travel to reach the point of accident.

The truck's acceleration: This is the rate at which the truck can increase its speed.

The truck's deceleration: This is the rate at which the truck can decrease its speed.

The goal of the performance protocol is to minimize the response time, which is the time it takes the truck to reach the point of accident. The response time can be calculated using the following formula:

response time = distance / acceleration + distance / deceleration

For a given distance, the response time will be minimized when the acceleration is maximized and the deceleration is minimized.

Based on real data from fire trucks, it is not recommended to purchase a truck with a more powerful engine.

The increase in acceleration that would be achieved by a more powerful engine would not be significant enough to justify the increased cost. In addition, the increased power would also increase the fuel consumption of the truck.

Therefore, it is recommended to stick with the current truck and not purchase a truck with a more powerful engine.

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When a 200 N force is applied to the spring, it will be displaced by 20 cm from its equilibrium point.

To find the displacement of the spring when a 200 N force is applied, we can use Hooke's Law.

The formula for Hooke's Law is:
F = k * x
where F is the force, k is the spring constant, and x is the displacement from the equilibrium point.

First, we can find the spring constant (k) using the given information:
100 N = k * 10 cm

k = 100 N / 10 cm
k = 10 N/cm

Now that we have the spring constant, we can find the displacement (x) when a 200 N force is applied:
200 N = 10 N/cm * x

x = 200 N / 10 N/cm
x = 20 cm

So, when a 200 N force is applied to the spring, it will be displaced by 20 cm from its equilibrium point.

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The intensity at a distance of 2.5cm from the point source is 100.0 watts/m².

The intensity of light decreases as the distance from the point source increases. The relationship between intensity and distance is inversely proportional to the square of the distance. This means that if the distance is halved, the intensity will be four times greater.

In this case, the intensity at a distance of 5.0cm is given as 25.0 watts/m². To find the intensity at a distance of 2.5cm, we can use the inverse square law:

I₁/I₂ = (d₂/d₁)²

where I₁ is the intensity at the initial distance (5.0cm), I₂ is the intensity at the new distance (2.5cm), d₁ is the initial distance, and d₂ is the new distance.

Plugging in the values,

25.0/I2 = (2.5/5.0)²

Solving for I₂, we get,

I₂ = 4 x 25.0 = 100.0 watts/m²

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The minimum amount of water needed for bathing assuming the water begins at room temperature is 16.58kg.

When two bodies at different temperature come into contact, they share the heat through conduction. After some time, temperature of both becomes equal. This condition is said to be a body in thermal equilibrium with other.

Heat gained by the water = heat lost by the ill person

m x Cw x ΔT = M x Cp x Δt

where, mass of person M = 80kg, Cp =specific heat of body =3470, specific heat of water Cw= 4186, then mass of water m will be

m x 4186 x (37-25) =- 80 x 3470 x (37-40)

m = 16.58kg

Thus, the mass of water needed is 16.58kg.

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Todd: momentum is stronger when the mass is 80 kg and the speed is 1. 7 m/s.

The ideal choice is (d).

Due to the fact that momentum depends both on velocity and the direction of the body's motion, it is measured as "mass velocity". Since mass is a scalar quantity but velocity is a vector, momentum is a vector quantity.

A quantity of motion can be thought of as momentum. Because an object has momentum if it is moving and has mass, the amount in this situation is measurable. An object lacks motion if it remains stationary. Even yet, many individuals didn't realize its significance in daily life.

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Mercury experiences greatest change between its actual day temperature and actual night temperature of any planet in our solar system. The correct answer is A .

During day,  temperature on Mercury's surface can reach up to 430 degrees Celsius, due to its close proximity to sun and lack of a thick atmosphere to regulate temperatures. At night, however, surface temperature can plummet to -180 degrees Celsius, as planet's thin atmosphere is unable to retain heat. This temperature variation of over 600 degrees Celsius is largest of any planet in our solar system and is due to Mercury's slow rotation, which causes each day to last longer than two of its years, resulting in extreme temperature fluctuations. Correct answer is option: A.

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Answer:

melanie ran 8.3 meters per second

Explanation:

I think thats right, hope it helps.

kinetic energy 8.0 s later will be 11.35 joules

Given:

inertia,I=0.034kgm²

torque,τ=0.11nm

time,t=8.0s

To find:

kinetic energy,KE

we can find the kinetic energy by using

\(k = \frac{1}{2} iω {}^{2} \)

so firstly we will find ω by finding α

α=τ/I

α=0.11/0.34

=3.23

then we find ω

ω=α×t

=3.23×8

=25.84

\(k = \frac{1}{2}iω {}^{2} \)

k=1/2×0.34×(25.84)2

=1/2×22.70

k=11.35

so kinetic energy is 11.35 joules

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The best advice Marta’s supervisor could give her regarding the long answers she is giving is to adapt her communication style (option D).

Communication is the concept or state of exchanging data or information between entities.

A communication is said to be effective when the information passed across is perfectly understood by the recipient.

According to this question, Marta gives long and involved answers to every question, even simple ones. She also uses technical vocabulary even if the people she is talking to do not understand it.

This means that the best advice Marta’s supervisor could give her regarding the long answers she is giving, so as to communicate effectively, is to adapt her communication style.

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The potential energy of the book-Earth system relative to the desk when the book is on the shelf is 42.84 Joules. This is calculated by multiplying the mass of the book (2.2 kg).

The acceleration due to gravity (9.8 m/s²), and then multiplying that by the vertical distance the book is lifted (1.3 m).

Potential energy is the energy possessed by an object due to its position or height. It is calculated using the formula PE = mgh, where PE is the potential energy, m is the mass of the object, g is the acceleration due to gravity, and h is the vertical distance or height.

In this case, the mass of the book is 2.2 kg, the acceleration due to gravity is 9.8 m/s², and the vertical distance the book is lifted is 1.3 m (the difference between the height of the bookshelf and the desk). Plugging these values into the formula, we get:

\(PE = (2.2 kg) * (9.8 m/s²) * (1.3 m)\)

\(= 42.84 Joules\)

Therefore, the potential energy of the book-Earth system relative to the desk when the book is on the shelf is 42.84 Joules.

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a)

The distance travelled in the first 3 seconds is 6 meters.

b.)

the total distance travelled is 13 meters.

c.)

the acceleration in the time interval from 4 seconds to 7 seconds is 0.67 m/s^2.

distance = speed × time

distance = 2 m/s × 3 s = 6 meters

b)

The distance travelled in the first 3 seconds=  6 meters.

The distance travelled from 3 seconds to 7 seconds, which can be found by finding the area under the trapezium formed by the line joining (3, 2) and (7, 4), the x-axis and the vertical lines at x=3 and x=7.

The height of the trapezium is (4 - 2) m/s = 2 m/s, and the two bases are 4 s - 3 s = 1 s and 7 s - 3 s = 4 s, respectively.

the area of the trapezium is:

area = (1/2) × (1 + 4) s × 2 m/s = 7 meters

The total distance travelled is therefore:

total distance = distance travelled in the first 3 seconds + distance travelled from 3 seconds to 7 seconds

total distance = 6 meters + 7 meters = 13 meters

c)

change in speed = final speed - initial speed

At t=4 s, t speed is 2 m/s,

and at t=7 s,  speed is 4 m/s.

change in speed = 4 m/s - 2 m/s = 2 m/s

The time interval is:

time interval = 7 s - 4 s = 3 s

acceleration = change in speed / time interval

acceleration = 2 m/s / 3 s = 0.67 m/s^2

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We can use the formula:

P = VI

where P is the power in watts, V is the voltage in volts, and I is the current in amperes.

For a 75-watt lightbulb,

75 = 120 × I

I = 0.625 A

To find out how many bulbs can be used without blowing a 17 A fuse, we divide the maximum current by the current for one bulb:

17 A / 0.625 A = 27.2

Therefore, we can use 27 75-watt lightbulbs without blowing a 17 A fuse.

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Answer:(:

Explanation:

discovered alpha and beta rays, and proposed the laws of radioactive decay.