When investigating the heat of combustion, a student found that 10.0 g of water warmed from 10.0°C to 20.0°C above the flame of a fuel being burned. What energy was absorbed by the water?

A. 100 J

B. 150 J

C. 210 J

D. 419 J

4 The temperature at the center of the sun is 1.55 x 10' K. Express this in degrees Fahrenheit. OA (2.33 x 106 °F 0 B (1.01 * 109°F OC (3.22 x 108, °F OD (2.79 x 107°F

Which of the following pieces of technology expand the sense of sight

What is true about empirical and molecular formulas?

he waves in terrestrial radiation have a shorter wavelength. Answers: A. The waves in terrestrial radiation have a lower frequency. B. The waves in terrestrial radiation have a shorter wavelength. C.

A sailboat started its trip at an average speed of 50 mph at 13.15. If the distance of the trip was 510 miles, at what time did the sailboat reach its destination? (Enter your answer in 24 hr tin

An object has a mass of 8.00 kg. What is the gravitational force on the object by the earth?

Which of the following best characterizes the free energy change ΔG for an endothermic reaction under physiological conditions? A. The sign of ΔG is positive B. The sign of ΔG is zero C. The sign of ΔG is negative D.

In a recent hockey game, one player (m=100kg) was moving at a velocity of 8 m/s when he ran into another player (m=300kg) who was at rest (v=0m/s). After the collision, the two players were stuck together (moving with the same velocity).

In a laser, electrical energy is changed to light energy, and a small amount of the energy is wasted as heat. Describe the total amount of the heat in the system (using the conservation of energy).

What is the name for a star and planets held together by gravity? A. solar system B. galaxy C. black hole D. supernova