Answer:
(a) the blocks all had different masses.
Explanation:
The surface is smooth, therefore coefficient of friction is tending to zero.
Forces for each blocks varied from 6N to 8N to 7N to 5N
The blocks were made of different materials and different materials are going to have varying weight for the same size of block.
An electric current is a flow of electric charge. In electric circuits this charge is often carried by moving electrons in a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in an ionised gas (plasma).
Answer:
The velocity of the ball when it first hit the net is Vi= 106.97 m/s
Explanation:
Vf= 0
Vi= ?
a= 56.3 m/s²
t= 1.9 s
Vf= Vi - a*t
Vi= a*t
Vi= 106.97 m/s
Power = (voltage) x (current)
Power = (120) x (8) = 960 watts = <em>0.960 kilowatt</em>
Answer:
(D)
Explanation:
A(2,3,4,6,8)
B(6,9,12,15,18)
(AuB)=(2,3,4,6,8,9,12,15,18)
