A concave lens has an inward curved shape. It refracts light outward from the lens. The light rays spread apart as they exit the lens. Which represents a concave lens?

How did geologists determine that the west coast of California has a higher earthquake risk than other areas of the United States a. by measuring the number of aftershocks b. by looking at data from previous earthquakes c.

Dimension for electric charge

If an isotope of nitrogen has a mass number of 15 and an atomic number of 7, how many subatomic particles are in the nucleus?

When hot and cold air meet, the hot air rises to the top. Which process causes the hot air to rise? A. radiation B. conduction C. convection D. induction

A laptop computer draws 5 A of current with a voltage of 19 V. Which is the power used by the computer? 15 W 95 W 0.26 W 3.8 W

A 98.1 kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.69 rad/s. A monkey drops a 9.29 kg bunch of bananas vertically onto the platform.

7. A type of non-renewable energy would be: O wind O petroleum O water solar

A refrigerator is a system. The energy input into the refrigerator system (in the form of electricity) is the same as the amount of energy output from the system. Which of the following best describes the energy output of the system?

A 1,120 kg car is travelling with a speed of 40 m/s. Find its energy.

3. Calculate the amount of current through a 45-watt light bulb that is connected to a 120-volt circuit in your home.