A rocket takes off from Earth's surface, accelerating straight up at 55.2 m/s2. Calculate the normal force (in N) acting on an astronaut of mass 82.4 kg, including her space suit. (Assume the rocket's initial motion parallel to the y-direction. Indicate the direction with the sign of your answer.)

The solid that is formed and usually sinks to the bottom of a solution is the

According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?

Select the best definition for wavelength. the height of an oscillating electromagnetic wave the rate at which electromagnetic waves oscillate. the distance between two crests of an electromagnetic wave. the oscillations of electric and magnetic fields select the best definition for frequency. the oscillations of electric and magnetic fields. the height of an oscillating electromagnetic wave. the distance between two crests of an electromagnetic wave. the rate at which electromagnetic waves oscillate