According to the law of conservation of energy, when a car uses 10,000 J of chemical energy from gasoline, how much of this energy will be transformed into mechanical, sound, or heat energy? A. 20,000 J B. 5000 J C. 10,000 J D. 2500 J

Q1) A motor has a rating power of 20 W and motor is used for 10 s. Calculate the energy supplied to the motor,

Which of the following statements or expressions is most nearly associated with Kepler's Third Law of Planetary Motion? A. P2 = A3 B. Planetary orbits revolve around two foci. C. A planet moves fastest when it is farthest from the sun. D.

When light enters a piece of glass from air with an angle of θ with respect to the normal to the boundary surface?

Which of the following weighing balances performs measurement in a closed compartment with no air currents to disturb measurement? Spring balance Analytical balance Hydraulic balance

What is the specific heat capacity if it takes 1000 J of energy to heat 25 g of this substance by 100°C? Give your answer in J/kg°C.

A baseball flying through the air has kinetic energy because of its motion. true or false?

How many poles does Jupiter's magnetosphere have? a. 2 c. 8 b. 4 d. 9

Which describes nuclear fusion? The nuclei of two atoms combine to form a larger nucleus. The nucleus of one atom splits to form two smaller nuclei. The electrons of two atoms combine to form a cluster of electrons.

In a class debate, a student argues that the big bang theory is "just a theory." What is most likely to be this student's understanding of scientific theories? A. Theories agree with observations of nature. B. Theories are just guesses. C.

Look at the advertisement. A poster that reads, "There's more to resistors than resistance. If you're really serious about cost, be serious about quality." with tools. Which persuasive media technique is used in this advertisement