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the quartz crystal used in electric watch vibrates with frequency 32.768 Hz what is the period of the crystal motion?
A low - frequency radio wave has a frquency of 250.000 Hz what is the wavelength of this radiowave? (Hint dont forget that is an electromagnetic wave. and therefore you should automatically know its speed.)
A wave with a frequency of 300 per second travels from water in which its velocity is 1450 m/s to air which its velocity is 331.5 m/s. Calculate the wavelengths in each medium
A longitudinal wave of frequency 100Hz has a wavelength of 11 m Find the speed of propagation.
calculate the speed of sound in air at stp. density of air at STP = 1.293 kg/m^3, y = 1.40
find the velocity of a longitudinal wave in a brass rod whose density is 8.5 g/cm^3
Find the velocity of a transverse wave in a string which is 4.0 m long with a mass with a total mass of 20 g when under a tension of 100N
What is the horizontal displacement of the object thrown into the air at a velocity of 30 m/s with an angle of 28 degree?
1. What is the momentum of a golf ball with a mass of 72 g moving at 43 m/s?
2. The impact between the ball and the club lasted for 2.3 x 10³ s. Given the problem in item number 1, what force has acted on the ball? What force has acted on the club?
When a stationary gas was compressed frictionless at constant pressure it's initial state of 12cm³ and 0.105mPa was found to change to final state of 120cm³ there was a transfer of 425kj of heat from the gas during the process.How much did the internal energy of the gas change
