Scientists can measure the amounts of different elements found in the universe. Which element's concentration in the universe is evidence for the big bang theory?

A. Helium

B. Uranium

C. Calcium

D. Iron

While performing an experiment, the student creating the data table is not sure if a measurement from the experiment is a vector or scalar.

What is the difference between mutual flux, leakage flux and magnetizing flux

A feather, a marble, and a cannonball are dropped from the same height at the same time. If they were in a vacuum, which one would hit the ground first? O A. The cannonball would hit the ground first. O B. The marble would hit the ground first. O C.

A metallic bond is a bond between a positively charged metal ion and

While scuba diving with some friends, Deshawn notices that the air bubbles exhaled by his friends increase in size as they get closer to the surface of the water. Why does this occur and which gas law explains it?

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.