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earnstyle [38]
4 years ago
12

According to the definition of mechanical work, pushing on a rock accomplishes no work unless there is

Physics
2 answers:
nignag [31]4 years ago
6 0
Movement in the same direction as the diection of the force
LekaFEV [45]4 years ago
4 0
There must be movement in the same direction as the force put on the object. Hope this helps!
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Need help on this question ASAP pleasee (:
Bogdan [553]

Answer:

250

Explanation:

impulse calculator internet

3 0
2 years ago
A pickup truck has a width of 79.0 in. If it is traveling north at 42 m/s through a magnetic field with vertical component of
bekas [8.4K]

Answer:

The magnitude of the induced Emf is 0.003371V

Explanation:

The width of the truck is given as 79inch but we need to convert to meter for consistency, then

The width= 79inch × 0.0254=2.0066 metres.

Now we can calculate the induced Emf using expresion below;

Then the induced EMF= B L v

Where B= magnetic field component

L= width

V= velocity

=(40*10^-6) × (42) × (2.0066)

=0.003371V

Therefore, the magnitude emf that is induced between the driver and passenger sides of the truck is 0.003371V

8 0
4 years ago
jake drags a sled of mass 10 kg across the snow. the sled is attached to a rope that he pulls with a force of 30 n at an angle o
bagirrra123 [75]

Answer:

The normal force is 85,42 N

Explanation:

There is no friction force, therefore there is no relationship between the normal force and the friction.

We can find the normal force using a free body diagram and check the forces that are acting on the sled. The total forces are equal to 0 because there is no movement in the y-axis. The movement exists only on the x-axis.

7 0
3 years ago
Read 2 more answers
At a constant temperature, the volume of a gas doubles when the pressure is reduced to half of its original value. This is a sta
djyliett [7]

Answer: Boyle’s law

Explanation:

Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}     (At constant temperature and number of moles)

As pressure is decreased to half, the volume is increased to doubled.

Charles' Law: This law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

V\propto T     (At constant pressure and number of moles)

Gay-Lussac's Law: This law states that pressure is directly proportional to the temperature of the gas at constant volume and number of moles.

P\propto T     (At constant volume and number of moles)

Combined gas Law: combining the three laws:

PV\propto T  

6 0
4 years ago
Read 2 more answers
Which of the following is a science ?
emmasim [6.3K]

Answer: What do you mean which of the following is science ?

Explanation:

4 0
3 years ago
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