A dolphin can typically hear sounds with frequencies up to 150,000 Hz. What is the velocity of sound in water if a wave with this frequency has a wavelength of 1.2 m?

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Ahorizontal force of 400.0 n is required to pull a 1760 n truck across the floor at a constant speed. find the coefficient of sliding friction.

Emagnitude of the electrical force acting between a +2.4 ×  10–8  c charge and a +1.8 ×  10–6  c charge that are separated by 0.008 m is    n, rounded to the tenths place.