Why does the frequency change and wavelength not change in an instrument?

Which statement correctly explains why a non-stretching seat belt better protects a driver than wearing no seat belt at all?

A room of volume v contains air having equivalent molar mass m. if the temperature of the room is raised from t1 to t2, what mass of air will leave the room

A car travels a distance of 80 km. for the first 30 minutes it is driven at a constant speed of 80 km/hr. the motor begins to vibrate and the driver reduces the speed to 40 km/hr for the rest of the trip. the average speed for the entire trip is?

What happens to water when it changes Into ice?

A racecar travels at an average speed of 80m/s in a race the total distance of the race is 640000m how long does it take the racecar to finish the race

You pull a simple pendulum of length 0.225m to the side through an angle of 3.50∘ and release it. Part A How much time does it take the pendulum bob to reach its highest speed? Take free fall acceleration to be 9.80 m/s^2.

What is the velocity of a wave having a frequency of 25 Hz and a wavelength of 10m

What is the force on a 1-kg ball that is falling freely due to the pull of gravity

Which would react chemically by forming an ionic bond? A. 2 chlorine atoms with 7 valence electrons each B. 1 neon atom with 8 valence electrons and 1 lithium atom with 1 valence electron C.

Which of these are considered an oxidizing mutagenic agent? x-rays benzopyrene gamma rays