4. How far does a car travel in 90 seconds if it is traveling at a speed of 55 m/s?

A motorboat maintained a constant speed of 21 miles per hour relative to the water in going 14 miles upstream and then returning. The total time for the trip was 1.5 hours. Use this information to find the speed of the current.

In a mass spectrometer, ions are directed into a magnetic field, where they curve and strike a detector.

Imagine that you have a sample of an unknown element and that you know only the elements mass number without directly measuring the number of protons in the nucleus of the element what other information would you need to know to identify the element?

How does resistance affect current flow in a circuit

The plates of a parallel-plate capacitor are 700 cm2 in area and 0.3 cm apart. The potential difference between the plates is 935 V.

Henry Heavtweight weighs 1000 N and stands on a pair of bathroom scales so that one scale reads twice as much as the other. What is the greater scale reading? What is the lesser scale reading?

A tape dispenser is an example of which simple machine pulley lever inclined plane screw

A brick with a mass of 20 kg and a weight of 196 N is released on a frictionless plane at an angle of 30°. What is the acceleration of the brick? A. 4.9 m/s2 B. 5.6 m/s2 C. 8.5 m/s2 D. 9.8 m/s2

As light reflects off a mirror the angle between the incident ray and reflected ray of light is 50°. What is the angle of reflection?

In what part of the earth does convection occur?