A train travels 120 km in 2 hours and 30 minutes. what is it average speed?

Estimate (a) how long it took King Kong to fall straight down from the top of the Empire State Building (380 m high), and (b) the velocity just before "landing"

If a magnet is put inside one coil of wire a voltage is produced. What will happen if the magnet is put inside two coils of wire

The core collapse phase at the end of the life of a massive star is triggered when

You think that something about the regular drink must have made it sink while something about the diet drink made it float

A car rounds a flat curve and experiences a centripetal force directed toward the center of the curve and perpendicular to the direction of its motion.

Have scientists discovered a fifth fundamental force of nature?

To study the properties of various particles, you can accelerate the particles with electric flelds. A positron is a particle with the same mass as an electron but the opposite charge (+e). Express your answer in vector form.

A lawnmower engine running for 20 minutes does 4560000 j of work. What is the power output of the engine

Which of the following is a conductor for electricity? Question options: wood wool water rubber tire

The area where the magnetic force is exerted is known as which of the following? A. pole B. domain C. field D. area