Find the momentum of a 25 kg remote

controlled car moving 4.0 m/s (Type your

answer below, don't forget your significant

figures and units!)

Which best explains why a washing machine does not represent a closed system? A. Water and power come from external sources. B. Most washers can use a variety of laundry detergent brands. C. It has multiple cycles, such as wash and spin. D.

What can be used to make complicated concepts and systems easier to study and understand?

Explain why the bright spectral lines of light emitted from the atoms of an element are unique to that element

A man pushes a heavy cart with a force exerted of 250 Newtons to keep it moving at a constant velocity. What is the kinetic frictional force between the cart and the ground? Select one: 250 Newtons against the cart's motion Not enough Information.

In Millikan's oil-drop experiment, one looks ata small oil drop held motionless between two plates. Take the voltage betwee the plates to be 2033 V, and the plate separation to be 2.00 cm. The oil drop (of density 0.81 g/cm3) has a diameter of 3.

If the volume of a hot air balloon remains constant, what happens as the temperature of the air inside the balloon increases?

What is the correct formula for electrical power? l

Bernie drove home from a vacation in 1.5 hours. He traveled a total distance of 60 miles. What was his average speed in miles per hour

What advice a personal trainer most likely give u before a workout

An elevator supported by a single cable descends a shaft at a constant speed. The only forces acting on the elevator are the tension in the cable and the gravity. Which one of the following statements is correct? Group of answer choices A.