subject
Physics, 18.02.2020 05:32 moneymaleia9264

A ball is projected horizontally from the top of a building. One second later, another ball is projected horizontally from the same point with the same velocity. (a) At what point in the motion will the balls be closest to each other? the instant the second ball is projected the instant the first ball hits the ground They stay equidistant from each other throughout the motion. one second after the second ball is projected (b) Will the first ball always be traveling faster than the second? Yes No (c) What will be the time difference between them when the balls hit the ground? It depends on the height of the building. no time difference one second between one and ten seconds (d) Can the horizontal projection velocity of the second ball be changed so that the balls arrive at the ground at the same time?

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 04:30
The pressure increases by 1.0 x 104 n/m^2 for every meter of depth beneath the surface of the ocean. at what depth does the volume of a pyrex (bulk modulus 2.6 x 1010n/m^2) glass cube, 9.8 x 10^−2m on an edge at the ocean's surface, decrease by 7.5 x 10−10m^3? explain the formula beyond this point: p=1.0x10^4, b=2.6x10^10, l=9.8x10^−2, delta v=7.5x10^−10. at some point l needs to be cubed. why p is divided by delta v?
Answers: 2
question
Physics, 22.06.2019 12:30
An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above
Answers: 3
question
Physics, 22.06.2019 13:00
Avoltaic cell converts chemical energy to
Answers: 1
question
Physics, 22.06.2019 23:30
Aswimming pool whose volume is 10 comma 000 gal contains water that is 0.01% chlorine. starting at tequals0, city water containing 0.003% chlorine is pumped into the pool at a rate of 5 gal/min. the pool water flows out at the same rate. what is the percentage of chlorine in the pool after 1 hour? when will the pool water be 0.006% chlorine?
Answers: 1
You know the right answer?
A ball is projected horizontally from the top of a building. One second later, another ball is proje...
Questions
question
Mathematics, 21.01.2021 22:40
question
Mathematics, 21.01.2021 22:40