Physics, 16.10.2019 01:10 hannahkharel2
Arock is dropped from a distance re above the surface of the earth, and is observed to have kinetic energy k1 when it hits the ground. an identical rock is dropped from twice the height (2re) above the earth’s surface and has kinetic energy k2 when it hits. re is the radius of the earth. what is k2/k1?
Answers: 3
Physics, 23.06.2019 00:30
Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero
Answers: 3
Physics, 23.06.2019 02:30
What are two examples of phase changes that skip a phase during transition?
Answers: 1
Physics, 23.06.2019 22:00
Someone plz me out ill give 30pts match the vocabulary word with the correct definition. 1. obstacles or difficulties that prevent exercise -regular exercise 2. conditioning that strengthens the heart, lungs, and blood vessels -obese 3. conditioning that strengthens specific muscles -flexibility 4. when a person is very heavy or overweight -muscular fitness 5. conditioning that the joints move better -physical fitness 6. a measurement of how healthy a person is in three main areas limitingfactors 7. a plan to exercise every week -cardiovascular fitness
Answers: 3
Physics, 23.06.2019 22:40
Apackage is projected up a 15° incline at a with an initial velocity of 8 m/s. knowing that the coefficient of kinetic friction between the package and the incline is 0.12, determine (a) the maximum distance d that the package will move up the incline, (b) the velocity of the package as it returns to its original position.
Answers: 1
Arock is dropped from a distance re above the surface of the earth, and is observed to have kinetic...
Health, 31.10.2019 06:31