For each of the following statements determine whether it is correct or incorrect.
a. spring...
For each of the following statements determine whether it is correct or incorrect.
a. spring a and b are identical except that a is stiffer than b; that is ka > kb. more work must be expended on spring a if both springs are stretched by the same amount.
b. the work done to raise a box onto a platform depends on how fast it is raised.
c. the kinetic energy of an object depends on the direction of the motion involved.
d. the kinetic energy depends on the reference frame of the observer.
e. the kinetic energy is always positive.
f. if the earth revolves around the sun in a perfectly circular orbit, then the sun does not do any work on the earth.
Answers: 3
Physics, 21.06.2019 18:40, kandi2565
The intensity, or loudness, of a sound can be measured in decibels (db), according to the equation , where i is the intensity of a given sound and is the threshold of hearing intensity. what is the intensity, in decibels, [i(db)], when ? use a calculator. round to the nearest whole number. 8 9 19 80
Answers: 1
Physics, 22.06.2019 07:00, emmalado45
The table below shows the acceleration of gravity on different bodies in the solar system. on which body would a 10 kg lamp has the most gravitational potential energy when lifted to a height of 2 m? a. earth b. mars c. neptune d. uranus
Answers: 1
Mathematics, 23.11.2020 23:40
English, 23.11.2020 23:40
Mathematics, 23.11.2020 23:40
English, 23.11.2020 23:40