7) A moving object is rolling on a surface that is 5 m off the ground. The object is moving at a constant speed of 4 m/s. If the object is 3.2 kg, what is the final energy of the ball after rolling for 10 m, assuming friction is negligible?
156.8 J
131.2 J
182.4 J
25.6 J
8) A spreadsheet application is used to create a computational model of the energy experienced by a pendulum. How do the energy values of the pendulum relate?
The sum of the potential energy and the kinetic energy is always constant.
The sum of the potential energy and the kinetic energy is always 0.
The potential energy is always greater than the kinetic energy.
The kinetic energy is always equal to the potential energy.
Answers: 3
Physics, 22.06.2019 01:30
Afigure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 20.9 12000 200 3.33
Answers: 2
Physics, 22.06.2019 14:40
What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.
Answers: 2
Physics, 22.06.2019 20:50
An ideal otto cycle has a compression ratio of 8. at the beginning of the compression process, air is at 95 kpa and 27°c, and 750 kj/kg of heat is transferred to air during the constant-volume heat-addition process. assuming constant specific heats at room temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (4390 kpa, 1730 k; 423 kj/kg; 56.4%; 534 kpa)
Answers: 1
Physics, 23.06.2019 01:30
The amount of potential energy possessed by an elevated object is equal to
Answers: 2
7) A moving object is rolling on a surface that is 5 m off the ground. The object is moving at a con...
Mathematics, 04.03.2021 18:10
Mathematics, 04.03.2021 18:10
Mathematics, 04.03.2021 18:20
SAT, 04.03.2021 18:20
Social Studies, 04.03.2021 18:20
Mathematics, 04.03.2021 18:20
Physics, 04.03.2021 18:20
English, 04.03.2021 18:20
Chemistry, 04.03.2021 18:20
Chemistry, 04.03.2021 18:20
Mathematics, 04.03.2021 18:20
English, 04.03.2021 18:20