Astring tied to a rock is being twirled around fred’s head at 5 cycles/s. if the rock has a mass of 500 g and the string is 50 cm long, what is the tension in the string?

An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

What are the starting materials for nuclear fission? two small nuclei two large nuclei a neutron and a large nucleus a neutron and a small nucleus