subject
Physics, 27.09.2019 19:00 santosbeti90

Can someone check my answer ! 2.the ability to do work or cause change is called a. velocity. b. energy.(i pick b.) c. transfer. d. friction. 3.which type of energy is demonstrated by a person jogging?
a. electrical energy b. nuclear energy c. electromagnetic energy d. kinetic energy(i pick d) 4.which is the type of energy available in food? a. electromagnetic b. gravitational c. chemical(i pick c) d. kinetic 5.dan does 188.0 j of work raking leaves. if the rake does 128.0 j of work, what is the efficiency of the rake?
a.68.1 percent(i pick a) b.147.0 percent c.60.0 percent d.316.0 percent 6.which type of energy transformation is taking place when natural gas is used to heat water?
a. chemical energy into thermal energy(i pick a) b. thermal energy into mechanical energy c. mechanical energy into electromagnetic energy d. electromagnetic energy into chemical energy 7.the energy associated with the motion and position of an object is called
a. kinetic energy. b. potential energy. c. gravitational potential energy. d. mechanical energy.(i pick d) i actually had 2 choices for 7 so my other answer is a

ansver
Answers: 1

Another question on Physics

question
Physics, 21.06.2019 23:30
Ais not a compound machine. a. bolt b. shovel c. handcart (dolly) d. see-saw (teeter totter)
Answers: 2
question
Physics, 22.06.2019 05:50
Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?
Answers: 3
question
Physics, 22.06.2019 16:50
Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.
Answers: 2
question
Physics, 23.06.2019 18:30
The chemical equation below shows the reaction of methane (ch4) and oxygen gas (o2) to form carbon dioxide (co2) and water (h2o). ch4 + 2o2 → co2 + 2h2o in this equation, which of the following are products? a. methane and oxygen gas b. carbon dioxide and methane c. carbon dioxide and water
Answers: 1
You know the right answer?
Can someone check my answer ! 2.the ability to do work or cause change is called a. velocity. b. e...
Questions
question
Spanish, 04.12.2020 19:40
question
Mathematics, 04.12.2020 19:40
question
Mathematics, 04.12.2020 19:40