How much heat in joules is required to heat a 50 g sample of aluminum from 71 ∘f to 142 ∘f?

If a car travels around a gentle curve on a highway at 60 km/h, does the velocity change

A youngster having a mass of 50.0 kg steps off a 1.00 m high platform. If she keeps her legs fairly rigid and comes to rest in 10.0 ms, what is her momentum just as she hits the floor? What average force acts on her during the deceleration?

The acceleration due to gravity on the moon is about 5.4 ft/s2. If your weight is 150 lbf on the earth: What is your mass on the moon, in slugs.

You observe a hockey puck of mass 0.12 kg, traveling across the ice at speed 18.3 m/sec. The interaction of the puck and the ice results in a frictional force on the puck, f = 0.14 N. Calculate: the stopping distance for this puck.

A 5.00-kg block of ice is sliding across a frozen pond at 2.00 m/s. A 7.60-N force is applied in the direction of motion. After the ice block slides 15.0 m, the force is removed. The work done by the applied force isA 5.

Complete this equation that represents the process of nuclear fission. Superscript 239 Subscript 94 Baseline P u + Superscript 1 Subscript 0 Baseline n yields Superscript A Subscript B Baseline B a + Superscript 91 Subscript 38 Baseline S r + 3

A particular electrical signal being transmitted to a neuron is sufficient to generate an action potential. If the magnitude of the incoming electrical signal is doubled, the action potential will

This part of the electromagnet spectrum produces heat and with special equipment can locate people at night. infrared waves microwaves X-rays gamma rays

An ambulance is traveling east at 51.6 m/s. Behind it there is a car traveling along the same direction at 32.3 m/s. The ambulance driver hears his siren at a frequency of 615 Hz. 32.3 m/s Car 51.

When a chemical reaction occurs with only one substance, what happens to the atoms of that substance?