Physics, 02.11.2020 16:40, moneymaleia92
A salmon jumps 2.0 m vertically and gains a certain amount of potential energy. A secondsalmon of half the mass jumps the same vertical height. Compared to the first salmon, thesecond salmon’s potential energy gain is? a. one-half as great b. twice as great c. the same d. 4 times as great
Answers: 3
Physics, 21.06.2019 22:40, cookies1164
Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.
Answers: 3
Physics, 22.06.2019 07:20, hardwick744
If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?
Answers: 3
Physics, 22.06.2019 18:00, jeff2852
Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative
Answers: 3
A salmon jumps 2.0 m vertically and gains a certain amount of potential energy. A secondsalmon of ha...
Mathematics, 21.04.2020 05:54
Mathematics, 21.04.2020 05:54
Mathematics, 21.04.2020 05:54
History, 21.04.2020 05:54
English, 21.04.2020 05:54
Computers and Technology, 21.04.2020 05:54