A baseball is traveling with a momentum of 6.5 kg m/s. If it gets stopped in 0.020 s, then what is the magnitude of the force that is stopping it?

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?

Adolphin emits ultrasound at 100khz and uses the timing of reflections to determine the position of objects in the water. part a what is the wavelength of this ultrasound? assume that temperature of water is 20 degrees c. answer in cm