# . How much work in joules is done by a person who uses a force of 25 N to move a desk 3.0 m?

here, F = 25 N

s = 3 m

Substitute it into the expression,

W = 25 * 3

W = 75 Joule

**So, your final answer is 75 J**

Hope this helps!

## Related Questions

a = F/m

a' = F/3m

a'/a = 1/3

Based on this, the correct answer would be option A.

1/3 as much the single Hope this helps.Shearing

The stress force that causes a mass of rock to pull or twist in opposite directions is called shearing.

Hope this helps! :)

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If a 375 mL sample of water was cooled from 37.5 C to 0 C how much heat was lost in joules?

Q=c∗m∗Δt

where Q is the energy lost,

c is the specific heat of water,

m is the mass of water involved,

so m=3.75 *10^-1 Kg

c=4,184 J/(Kg*°C)

**delta t=37.5 °C**

I hope my answer has come to your help. God bless and have a nice day ahead!

Gravitational force between two objects depends on

**Answer:**

SIZE AND DISTANCE BETWEEN THEM

F = 49N

I Took The Test!

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A net force of 125 N accelerates a 25.0 kg mass. What is the resulting acceleration?

Answer:

Explanation:

The acceleration of an object can be calculated by using Newton's second law:

where

F is the net force applied on the object

m is the mass of the object

a is its acceleration

In this problem, we have F=125 N and m=25.0 kg, so we can rearrange the equation to calculate the acceleration:

When a falling object reaches terminal velocity, the net force acting on it is

Explain Why must a cooling system do work to transfer thermal energy?

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There are 2 ways of solving this question

First is to use formula which connects starting speed, acceleration (which we would calculate from graph where we can see how speed changes) and time to calculate traveled distance.

S = V0 * t + 1/2*a*t^2

acceleration a is a = -4m/s^2

S(t=3s) = 18

On this value we add 12 initial meters of distance and we get S(t=3s) = 30 meters

For t=4s we get

S = 16 m

Plus initial distance of 12 m we get 30 meters

Answers are 30 and 28 meters.

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second way is to find surface of graph bellow speed line for 3 and 4 seconds...

Force times Mass equals Acceleration.

**The answer is TRUE.**

If the mass increases the number on the left side of the equation increases, thus increasing the right side as well.

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Does centripetal force change in uniform circular motion?

Why doesn't an electromagnetic wave move as fast through a solid as it would a gas

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**Option C i.e understanding a friend's problems and providing support is the correct answer.**

**Mayer and Salovey’s third component of emotional intelligence (regulating emotions) is the ability to Understand Emotions**. So understanding a friend’s problems and providing support is the scenario relates to Mayer and Salovey’s third component of emotional intelligence (regulating emotions)

A 521-kg meteor is subject to a force of 2520 N. What is its acceleration?

**Answer:**

Acceleration,

**Explanation:**

It is given that,

Mass of the meteor, m = 521 kg

Force acting on the meteor, F = 2520 N

Let a is the acceleration of the meteor. It can be calculated using the Newton's second law of motion. According to this law the force acting on an object is equal to the product of mass and acceleration with which it is moving. Mathematically, it is given by :

**So, the acceleration of the meteor is . Hence, this is the required solution.**

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Emission lines occur only in the case of transitions from higher to lower energy levels in which energy is emitted.

cosΘ = 0.666

Θ = ± 48º

Vertically:

150g*sin150 + 220g*sin270 + 195g*sinΘ = 0

sinΘ = 0.744

Θ = 48º

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**Answer:**

B. Greater energy

**Explanation:**

Fast moving water is very energetic as its can displace very large rocks, boulders and make pebbles and sand out of them through the process r erosion. Fast moving water have kinetic energy, it opposes anything that come in its way. As river make its own channel by eroding plane. Many antecedent rivers have make their channel by cutting large mountains too.

p- pressure

v-volume

t- temperature

P1V1/T1 = P2V2/T2

in this equation we know:

P1,V1 and T1, T2 and V2.

We have one equation and 1 unknown variable.

P2 = T2P1V1/T1V2 = 1.1atm

s = 1 275 000 000 km

The time required to travel that distance is:

t = s/v = 45535 hours or 1897.3 days

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Answer: **0.5 seconds or 2.625 seconds**

Explanation:

At t = 0, The ball is 4 ft above the ground.

The height of the football varies with time in the following way:

s(t) = -16 t² + 50 t + 4

we need to find the time in which the height would of the football would be 25 ft:

⇒25 = -16 t² + 50 t + 4

we need to solve the quadratic equation:

⇒ 16 t² - 50 t + 21 = 0

**⇒ t = 0.5 s or 2.625 s**

**Therefore, at t = 0.5 s or 2.625 s, the football would be 25 ft above the ground. **

**Answer:**

**Explanation:**

The gravitation force of attraction between the two bodies is directly proportional tp the product of masses of two bodies and inversely proportional to the square of distance between them.

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