Physics, 17.10.2019 16:30 karsynraine8224
Two canoeists in identical canoes exert the same effort paddling and hence maintain the same speed relative to the water. one paddles directly upstream (and moves upstream), whereas the other paddles directly downstream. with downstream as the positive direction, an observer on shore determines the velocities of the two canoes to be −1.2m/sand +2.9m/s, respectively. (a)what is the speed of the water relative to the shore? (b)what is the speed of each canoe relative to the water?
Answers: 3
Physics, 22.06.2019 22:20, queenbee2994
One hazard of space travel is debris left by previous missions. there are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. calculate the force exerted by a 0.110 mg chip of paint that strikes a space shuttle window at a relative speed of 5.00 ✕ 103 m/s and sticks, given the collision lasts 6.00 ✕ 10-8 s. such a collision chipped the window of the ill-fated challenger in june 1983, causing $50,000 of damage.
Answers: 2
Physics, 23.06.2019 00:30, ehaynie
Which of the following statements are true for an isothermal process? check all that apply. - during an isothermal process, the work done by the gas equals the heat added to the gas. - during an isothermal process, the internal energy of the system changes. - an isothermal process is carried out at constant temperature. - an isothermal process is carried out at constant pressure. - an isothermal process is carried out at constant volume.
Answers: 1
Two canoeists in identical canoes exert the same effort paddling and hence maintain the same speed r...
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