➢ 1. force = mass × <u>acceleration</u>
➢ 2. Since unit of weight = kg•m/s²
D is the wrong answer. New information does often completely change the theory. Its hard to change something and leave the major theory intact.
P=w/t
w=15
t=3
therefore, 5 watts (b)
Answer:
More force
Explanation:
Object A has more mass than object B
For object A to accelerate at the same rate as object B, it will need more force.
According to Newton's second law of motion "the net force on a body is the product of its mass and acceleration".
Net force = mass x acceleration
Now, if a body has more mass and needs to accelerate at the same rate as another one with a lower mass, the force on it must be increased.
The heat capacity and the specific heat are related by C=cm or c=C/m. The mass m, specific heat c, change in temperature ΔT, and heat added (or subtracted) Q are related by the equation: Q=mcΔT. Values of specific heat are dependent on the properties and phase of a given substance.
