A 12v battery supplies a current 0f 0.4A to a lamp. Caculate resistance of the lamp

What is the relationship between mass and weight?

What is the major regulator of vocal intensity?

Two identical billiard balls are rolling toward each other at the same speed. What will be true after they collide head-on?

you ride a bike for 2 hours at 25 km/hr then 3 hours at 34 km/hr. what is your average velocity (in km/hr) ?

In an inelastic collision, which of the following statements is always true? [A] Kinetic energy is conserved in the collision. [B] Momentum is conserved in the collision. [C] After the collision, the objects always merge into one.

Are microwaves and radio waves faster or slower than other types of electromagnetic energy?

If you dive under-water, you notice an uncomfortable pressure on your eardrums due to the increased pressure. The human eardrum has an area of about 70 mm2 (7*10-5m2), and it can sustain a force of about 7 N without rupturing.

Why cant kinetic energy ever be greater than potential energy

For a stationary observer, when the source of a sound is moving, its pitch appears to change.

Give an example of each simple machine