A musical tone sounded on a piano has a frequency of 874000 Hz and a wavelength of 2 m. What is the speed of the sound wave? use the equation from the power point 1.74E6 m/s 4.56E6 m/s 1.28E6 m/s 7.54E6 m/s

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

Madison pushes with a 210-n horizontal force on a 24-kg crate of coffee resting on a warehouse floor. the force of friction on the crate is 74 n. what is the acceleration?