Answer:
The frictional force acted on mass, m = 7.5 kg
Explanation:
Given data,
The acceleration of the box, a = 2 m/s²
The force acting on the box, F = 15 N
The mass of the box, m = ?
The force is defined as the product of mass and acceleration.
F = m x a newton
Therefore,
m = F / a
= 15 / 2
= 7.5 kg
Hence, the frictional force acted on mass, m = 7.5 kg
Heat = specific heat × mass × change in temperature
Specific heat = heat/ (mass×change in temperature)
Force can be exerted into an object with out it moving, but if you were to move the object due to force it would be considered work. (yes, you can exert force without having the object moving)
Answer: A = square root (2/L)
Explanation: find the attached file for explanation
Answer:
An image can be seen in the mirror because the light reflected from an object falls on the mirror and it is reflected.