1.7.
Which statement best describes the PE-KE transformations for a javelin,
starting from the...
Physics, 27.05.2021 14:00 jashaikamatuteowwp1p
1.7.
Which statement best describes the PE-KE transformations for a javelin,
starting from the instant the javelin leaves the thrower's hand until it hits the
ground.
Initial PE is transformed to KE until the javelin reaches the high point of its
arc. On the way back down, KE is transformed into PE. At every point in the
flight, mechanical energy is being transformed into heat energy.
b. Initial PE is transformed to KE until the javelin reaches the high point of its
arc. On the way back down, there is no transformation of mechanical
energy. At every point in the flight, mechanical energy is being transformed
into heat energy.
Page 2
Answers: 2
Physics, 22.06.2019 19:40
22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?
Answers: 1
Physics, 22.06.2019 21:00
How is the acceleration of an object in uniform circular motion constant? a - in magnitude only b - in direction only c - in both magnitude and direction d - in magnitude, direction & orientation
Answers: 3
Physics, 23.06.2019 04:50
By examining a wave’s pattern after it interacts with a barrier or gap, measurements can be made to better understand certain wave phenomena. what is a broad question you can answer by doing this experiment?
Answers: 2
Physics, 23.06.2019 07:30
Neurons are components of the nervous system of the body that transmit signals as electrical impulses travel along their length. these impulses propagate when charge suddenly rushes into and then out of a part of the neutron called an axon. measurements have shown that, during the inflow part of this cycle approximately 5.6x10^11 na per meter, each with a charge of e enter the axon. how many coulombs of charge enter a 1.10 cm length of axon during this process
Answers: 2
Mathematics, 07.05.2021 01:00
Mathematics, 07.05.2021 01:00
Social Studies, 07.05.2021 01:00
English, 07.05.2021 01:00
Biology, 07.05.2021 01:00
Chemistry, 07.05.2021 01:00
Mathematics, 07.05.2021 01:00
Mathematics, 07.05.2021 01:00
Mathematics, 07.05.2021 01:00