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Vladimir [108]
3 years ago
5

A 5 kilogram block is dropped from a height of 3 meters and falls straight to the ground. What is the work done by the force of

gravity?
Physics
1 answer:
vazorg [7]3 years ago
5 0

Answer:

Workdone = 147Nm

Explanation:

Given the following data;

Mass = 5kg

Height = 3m

We know that acceleration due to gravity is 9.8m/s²

First of all, we would find the force applied;

Force = mass * acceleration

Force = 5*9.8

Force = 49N

Now, to find the workdone;

Workdone = force * distance

Substituting into the equation, we have;

Workdone = 49 * 3

Workdone = 147Nm

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The reagents correspond to substances that react with others, generating a chemical reaction.

Explanation:

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Hydrogen reacts with oxygen in a synthesis reaction, forming a new compound (hydrogen peroxide) called a product.

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3 years ago
A ball is thrown into the air with an upward velocity of 20 feet per second. Its height, h, in feet after t seconds is given by
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3 years ago
g We saw in class that in a pendulum the string does no work. We also saw that the normal force does no work on an object slidin
Ymorist [56]

Answer:

From question (a) and (b) the pendulum motion is perpendicular to the force so the normal force will do no work and the tension in the string of the pendulum will not work

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And \theta = 90 so

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c

An example will be a where a stone is attached to the end of a string and is made to move in a circular motion while keeping the other end of the string in a fixed position        

d

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Explanation:

5 0
3 years ago
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C
Artemon [7]

Answer:

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8 0
3 years ago
PLEASE HELP ME WITH THIS ONE QUESTION
sdas [7]

Answer:

0.34 m

Explanation:

From the question,

v = λf................ Equation 1

Where v = speed of sound, f = frequency, λ = Wave length

Make λ the subject of the equation

λ = v/f............... Equation 2

Given: v = 340 m/s, f = 500 Hz.

Substitute these values into equation 2

λ = 340/500

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Therefore,

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Hence, the distance between a point of rarefaction and the next compression point, in the resulting sound is 0.34 m

6 0
2 years ago
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