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Sati [7]
3 years ago
6

If you are pushing on a box with a force of 20 N and there is a force of 7 N on the box due to sliding friction, what is the net

force on the box? I need the answer ASAP!
Physics
2 answers:
DIA [1.3K]3 years ago
7 0
I think you would do 20+7 = 27N as the net force
Diano4ka-milaya [45]3 years ago
7 0

Answer:

Net force acting on the box, F_{net}=13\ N

Explanation:

It is given that,

Force with which the box is pushed, F = 20 N

Force acting due to sliding friction, f = 7 N

Sliding friction is a type of resistive force. It always opposes the motion of an object. Here, the force of 7 N will act in the opposite direction of motion. As a result, the net force acting on the box is given by :

F_{net}=F-f

F_{net}=20-7

F_{net}=13\ N

So, the net force acting on the box is 13 N. Hence, this is the required solution.

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1kg slab of concrete loses 12,000j of heat when it cools from 30 Celsius to 26 Celsius. Determine the specific heat capacity of
OleMash [197]

The specific heat capacity of concrete is 3.0 J/(g^{\circ}C)

Explanation:

When a certain amount of energy Q is supplied/given off to/from a sample of substance with mass m, the temperature of the substance increases/decreases by an amount \Delta T, according to the equation

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Q = -12,000 J is the amount of energy lost by the slab

\Delta T = 30-26= -4^{\circ}C is the change in temperature of the slab

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Learn more about specific heat capacity:

brainly.com/question/3032746

brainly.com/question/4759369

#LearnwithBrainly

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