How can you magnetize a steel nail? Explain why this works.

1 kg of aluminum requires 887 J (Joule) to raise its temperature by 1 K (Kelvin). The specific heat of aluminum is expressed as (J / (kg*K)). For a 100 g aluminum bar, how much energy is needed to raise the temperature from - 9oC to 1oC?

Specific heat refers to the mount of heat required to change 1 gram of a substance

What type of simple machine is an ax

Velocity can only be described including both

Is there any science behind unicorns / pegasis?

Inside a stereo speaker, you will find two permanent magnets: one on the cone and one near the cone. True of false?

When a hurricane nears land what causes the most damage

Calculate if an electric hair dryer uses 2,400 j of energy in 2 s, what is its power?

Which of the following choices best represents a potential stressor?

How do you distinguish between speed, velocity, and acceleration?