Physics Questions

Energy of an object due to its motion
2 Answers
Which of the following is an agent of socialization?a. a grandparentc. TVb. schoold. all of the above
2 Answers
Which body part belongs to the circulatory system?
2 Answers
Name one other organ system that would be affected if you had no marrow. Explain.
2 Answers
Charles's law states that at a constant pressure, the volume of a given amount of gas is _____ to its absolute temperature.
1 Answers
One major difference between plant and animal cells is that plant cells are the only ones with ?
2 Answers
A waterwheel is an example of ____.
1 Answers
A temperature of 200°F is equivalent to approximately A. 232°C. B. 93.3°C. C. 840°C. D. 37.8°C.
1 Answers
Trumpeter A holds a B-flat note on the trumpet for a long time. Person C is running towards the trumpeter at a constant velocity. Person B is running away from the trumpeter at the same rate. Person D is standing still the whole time.Which person hears a frequency that is lower than the B-flat?A) Person A B) Person B C) Person C D) Person D
2 Answers
Which has more energy for erosion? A. fast-moving stream B. slow-moving creek C. lake D. rainfall
2 Answers
Micah knows that a car had a change in velocity of 15 m/s. To determine acceleration, Micah also needs the_____ of the total trip in seconds.
2 Answers
A spring gains 2.34 joules of elastic potentialenergy as it is compressed 0.250 meter from itsequilibrium position. What is the spring constantof this spring?(1) 9.36 N/m (3) 37.4 N/m(2) 18.7 N/m (4) 74.9 N/m
2 Answers
A 0.50 kilogram ball is held at a height of 20 meters. What is the kinetic energy of the ball when it reaches halfway after being released?
1 Answers
In a closed system, the volume of a gas is not related to the volume of its enclosure.a. Trueb. False
2 Answers
Imagine that you are working as a roller coaster designer. You want to build a record breaking coaster that goes 70.0 m/s at the bottom of the first hill. You estimate that the efficiency of the tracks and cars you are using 90.0%. How high must the first hill be?
1 Answers
A child is sledding. He starts at the top of the hill with a velocity of zero, and 3 seconds later he is speeding down the hill at 12 meters per second. What is the child's acceleration?
1 Answers
What appears to emit regular bursts of radio waves
1 Answers
A baseball has a mass of 140 grams and a softball has a mass of 280 grams. In which of the following situations would they both have the same momentum?
2 Answers