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zepelin [54]
2 years ago
5

A 14n force is applied for 0.33 seconds, calculate the impulse

Physics
1 answer:
Shalnov [3]2 years ago
5 0

Answer:

4.62 N-s

Explanation:

recall that the formula for impulse is given by

Impulse = Force x change in time

in our case, we are given

Force = 14 N

change in time = 0.33s

Simply substituting the above into the equation for impulse, we get

Impulse = Force x change in time

Impulse = 14 x 0.33

= 4.62 N-s

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Answer:

50m; 0m/s.

Explanation:

Given the following data;

Initial velocity = 20m/s

Acceleration, a = - 4m/s²

Time, t = 5secs

To find the displacement, we would use the second equation of motion;

S = ut + \frac {1}{2}at^{2}

Substituting into the equation, we have;

S =20*5 + \frac{1}{2}*(-4)*5^{2}

S =100 + (-2)*25

S =100 - 50

S = 50m

Next, to find the final velocity, we would use the third equation of motion;

V^{2} = U^{2} + 2aS

Where;

  • V represents the final velocity measured in meter per seconds.
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<em>Substituting into the equation, we have;</em>

V^{2} = 20^{2} + 2(-4)*50

V^{2} = 400 - 400

V^{2} = 0

V = 0m/s

<em>Therefore, the displacement of the bus is 50m and its final velocity is 0m/s.</em>

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3 years ago
The mass of an atom of carbon-12 (Z = 6) is less than the mass of 6 protons and 6 neutrons because of
Orlov [11]
Because 2 carbon attach to one's of each of the others
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A television weighs 8.50 pounds. How many grams is this? (Hint: You need to
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Answer:

3859 grams

Explanation:

Given: Weight of a television = 8.50 pounds

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Weight of television in grams = 3859 grams

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