Which of the following represents the brightness of a celestial object measured from Earth?

Absolute brightness

Apparent magnitude

Luminosity

Proto-star

Wind turbine B has blades twice as long as wind turbine A. If they are subjected to the same wind, what is the relationship between the power from turbine A (PA) and the power from turbine B (PB) ?

A 0.5 kg ball is at the top of a ramp which is 8 meters high. How much Vinetic energy does the ball have at the bottom of the ramp? (round the answer to the tenths place)

Which statement is false? (a) Pressure gradient is the difference in pressure between high and low pressure areas. (b) Wind speed is directly proportional to the pressure gradient.

Put the energy values in order from smallest at the top of your list to biggest at the bottom. 20 J 2 J 100 J 2 kJ 20,000 J 100 kJ

What is the mural with an area of 18 m squared

A ___ is awarded to the opposing team when that team violently or dangerously charges a opponent. (in soccer) A) Goalie kick B) Indirect kick C) Direct kick D) Throw in

Which has greater potential energy, a book on the top shelf of a bookcase or a book on the bottom shelf? Why?

Fusion occurs with atoms of elements less massive than a. iron. b. helium. c. calcium. d. uranium.

Which describes what happens when fuel is ignited in a heat engine? A. Chemical energy is converted into thermal energy B. Thermal energy is converted into solar energy. C. Solar energy is converted into chemical energy D.

What happens during the intake and compression strokes of a four stroke engine?