A source of wave produces 20 crest sand 20 troughs in 0.4 sec. Find the frequency of the wave.

Faraday's law does not depend on the number of times the coil turns. true or false?

In what kind of reaction is a compound formed from two reactants

Three samples were weighed using three different balances. all measurements are as accurate as the precision below indicates. the weights are 1.21 kg, 546 mg, and 23.14 g. using significant figures, the total mass should be reported as

the mass of a mineral is 125 g the mineral is placed in a graduated cylinder containing 150. o mL of water. the water level rises to 175.0 mL. what is the mineral's density?

An open-pipe resonator has resonant frequencies are odd-numbered multiples of the fundamental. True or false Explain

What is the weight on earth of a girl with a mass of 38 kg?

50g of ice at 0°C is mixed with 50g of water at 80°C, what will be the final temperature of a mixture in degrees C?

If the Density of an object is 5.2 g/cm3, and its volume is 3.7 cm3, what is its mass

The direction of the magnetic field is determined by which of the following? A. energy of the current B. magnetic domain C. magnetic force D. direction of the current

A ship is traveling at 154 m/s and accelerates at a rate of 1.80 m/s^2 for 1 minute. What will its speed be after that minute? Calculate the answer in both meters per second and kilometers per hour.