A material that allows current to travel through a circuit
Answer:
Mass is the amount of matter in a substance.
Explanation:
The basic SI unit for mass is the kilogram (kg).
Answer:
8.6 m/s
Explanation:
The components of the initial velocity of the ball can be found by using the equations:

where
is the horizontal component
is the vertical component
v is the magnitude of the velocity
is the angle above the horizontal
Substituting:
v = 15 m/s

We find:

I got the 1.0g of coal producves 35,000 joules which is also 8.36 kcals