A student is pushing a 50 kg cart, with a force of 600 N. Another student measures the speed of the cart, and finds that the cart is only accelerating at 3 m/s^2. How much friction must be acting on the cart?

Which best describes color blindness? A. Males inherit color blindness from their fathers. B. Males need only one copy of the color-blind allele to show the trait. C. Females get color blindness only from their mothers. D.

Which wave property changes when two waves interfere in the same medium

During a discus throw, Arthur's arm rotates 25 rad/s, and the discus is 1.5 m from the axis of rotation when he releases it. Blake's arm rotates 30 rad/s, and the discus is 1.1 m from the axis of rotation when he releases it.

What is the frequency of light that has a wavelength of 249 nm? hints what is the frequency of light that has a wavelength of 249 nm? 1.20 * 106 sec?1 1.20 * 1015 sec?1 1.20 * 1015 sec 1.20 * 10?3 sec?1?

A standing wave is established in a 120-cm-long string f xed at both ends. the string vibrates in four segments when driven at 120 hz. (a) determine the wavelength

A 82 kg football player encounters a 427 kg m/s impulse. How much does the players velocity change?

A 0.5 kg tennis ball has speed of 15m/s. what is the kinetic energy of tennis?

What has affected almost every aspect of modern sports? O A. technology OB. injuries OC. politics OD. weather

Rachel is making cookies. She pours 1/2 cup of oil into a bowl, followed by 1 cup of water. The oil rises to the surface of the bowl. Why?

Two particles collide, one of which was initially moving and the other initially at rest. Is it possible for both particles to be at rest after the collision?