Physics, 26.06.2019 00:30 bryantnaomi6
Moving water, like that of a river, carries sediment as it moves along its bed. the faster the water flows, the more sediment that is carried and the larger the sediment particles. as the river slows down, the heavier particles of the load will settle out. how can you explain the particle movement based on newton's laws of motion? a) an object remains at rest until a force acts on it. b) for every action there is an equal and opposite reaction. c) the greater the force of the water, the faster the particle accelerates. d) the water and the particle exert a gravitational attractive force on each other.
Answers: 2
Physics, 21.06.2019 21:50
It is may 5 and you are somewhere in the northern hemisphere. if you determine that the noon sun is 51 degrees above your southern horizon, what is the latitude of your location
Answers: 1
Physics, 22.06.2019 18:00
Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c
Answers: 1
Physics, 22.06.2019 19:30
A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.
Answers: 1
Physics, 22.06.2019 22:20
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
Moving water, like that of a river, carries sediment as it moves along its bed. the faster the water...
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