Physics, 05.10.2019 04:20 youngsunc02
Two wooden crates rest on top of one another. the smaller top crate has a mass of m1 = 25 kg and the larger bottom crate has a mass of m2 = 91 kg. there is no friction between the crate and the floor, but the coefficient of static friction between the two crates is µs = 0.79 and the coefficient of kinetic friction between the two crates is µk = 0.62. a massless rope is attached to the lower crate to pull it horizontally to the right (which should be considered the positive direction for this problem).1)the rope is pulled with a tension t = 234 n (which is small enough that the top crate will not slide). what is the acceleration of the small crate? 2)in the previous situation, what is the magnitude of the frictional force the lower crate exerts on the upper crate? 3)what is the maximum tension that the lower crate can be pulled at before the upper crate begins to slide? 4)the tension is increased in the rope to 1187 n causing the boxes to accelerate faster and the top box to begin sliding. what is the acceleration of the upper crate? m/s25)as the upper crate slides, what is the acceleration of the lower crate?
Answers: 1
Physics, 21.06.2019 22:30
Aforce of 200 n is applied to an input piston of cross-sectional area 2 sq. cm pushing it downward 2.8 cm. how far does the output piston of cross-sectional area 12 sq. cm move upward? show all work.
Answers: 1
Physics, 22.06.2019 17:00
Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little
Answers: 2
Physics, 22.06.2019 19:50
Ahuge (essentially infinite) horizontal nonconducting sheet 10.0 cm thick has charge uniformly spread over both faces. the upper face carries +95.0 nc/m2 while the lower face carries -25.0 nc/ m2. what is the magnitude of the electric field at a point within the sheet 2.00 cm below the upper face? (ε0 = 8.85 × 10-12 c2/n · m2)
Answers: 1
Physics, 23.06.2019 03:30
Arock displaces 1.65 l of water. the volume of the rock is: a: 1,650 cm³ b: 165.0 cm³ c: 16.50 cm³ d: 0.165 cm³
Answers: 2
Two wooden crates rest on top of one another. the smaller top crate has a mass of m1 = 25 kg and the...
Mathematics, 16.03.2022 14:00
Biology, 16.03.2022 14:00