Which of the following best describes what went wrong with the scientists' study? an improper experimental procedure the lack of a control group selection bias human error

Calculate the kinetic energy of a 4 kg object traveling at 16 m/s

I need information on sound energy.

What happens to the velocity of a sound wave in the air if the temperature of the air increases?

The speed of a sound wave in seawater is approximately 1500 m/s. If this wave is transmitted at 10 ms-1, what is its wavelength? Answer in units of cm

Kent throws a tennis ball that has a mass of 3.0 kg straight up in the air at 25 m/s. What height does it reach if the kinetic energy of the ball is 100% transferred into potential energy at the top of the throw

Your car travels 600 miles in 6 hours. You stop the car for lunch for 1 hour and then you continue on your trip for another 14 miles and finish the entire trip in 8 hours. What was your car's average speed while you were driving?

Speed is a vector quantity

The observation location A is located at m. The conventional current running through the wire is 7.5 amperes. In this exercise you will calculate the magnetic field at the observation location due only to segment 4 of the wire.

The wavelength of a light wave can be used to measure which of the following? A. The direction the wave is traveling B. How many photons the wave contains C. How much energy the wave has D. How high the top of the wave is

Sound 1 has an intensity of 38 W/m2. Sound 2 has an intensity level that is 2.5 dB greater than the intensity level of sound 1. What is the intensity of sound 2?