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Pani-rosa [81]
2 years ago
8

Physics question: show work and circle answer

Physics
1 answer:
ruslelena [56]2 years ago
5 0

Answer:

F = 2 [N], choose option (2)

Explanation:

The principle of impulse is defined by the following expression:

Impulse = Force * Time

Force = force acting [N] or [kg*m/s^s]

Time = time during the impulse [s]

Replacing:

Impulse = 10[kg*m/s^2] * 10 [s]

Impulse = 0,1 [kg*m/s]

Now with this impulse, we can find the force for the new time.

F = Impulse/Time

F = 0.1[kg*m/s] / 0.05[s]

F = 2 [N]

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Find the work done in pumping gasoline that weighs 6600 newtons per cubic meter. A cylindrical gasoline tank 3 meters in diamete
Sonbull [250]

Answer:

<em>work done in pumping the entire fuel is 466587 J</em>

<em></em>

Explanation:

weight of the gasoline per volume = 6600 N/m^3

diameter of the tank = 3 m

length of the tank = 2 m

height of the tractor tank above the top of the tank = 5 m

work done in pumping fuel to this height = ?

First, we find the volume of the fuel

since the tank is cylindrical,<em> we assume that the fuel within also takes the cylindrical shape.</em>

<em>Also, we assume that the fuel completely fills the tank.</em>

volume of a cylinder = \pi r^{2}l

where r = radius = diameter ÷ 2 = 3/2 = 1.5 m

volume of the cylinder = 3.142 x 1.5^{2} x 2 = 14.139 m^3

we then find the total weight of the fuel in Newton

total weight = (weight per volume) x volume

total weight = 6600 x 14.139 = 93317.4 N

work done = (total weight of the fuel) x (height through which the fuel is pumped)

work done in pumping = 93317.4 x 5 = <em>466587 J</em>

8 0
2 years ago
5. Susan exerted 400 newtons of force while pushing on a huge boulder. The boulder moved 0 meters. Calculate work.
Stells [14]

Answer:

0 J

Explanation:

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Given that :

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No work was done because the boulder did not move.

4 0
3 years ago
The landing of a spacecraft is cushioned with the help of airbags. During its landing on Mars, the velocity of downward fall is
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You can use the impulse momentum theorem and just subtract the two momenta.
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If you first worked out the force and integrated it over time the result is the same
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3 years ago
Read 2 more answers
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The value of Ff is 12.6 N. This force is equal to the product of the normal force which is equal to the weight in horizontal surface and the coefficient of friction.
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3 years ago
What stores energy for a quick release in a cell?
luda_lava [24]
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5 0
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