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A 4 kilogram block (block A) is released from rest at the top of a 20 meter long frictionless ramp that is 4 meter high. At the equal time, an identical block (block B) is released next to the ramp therefore that it drops straight down the same 4 meter. Determine the values for each of the following for the blocks just before they reach ground level.
(a) Gravitational potential energy
(b) Kinetic energy
(c) Speed
(d) Momentum
1.give the definition of electrical circuit. draw the simplest electrical circuit and mark the directions of electrical
A skier of mass 71 kg is pulled up a slopeby a motor-driven cable. What power must a motor have to perform this task
A horizontal pipe shown in the figure has a cross-sectional area A1 = 37.5cm2 at the wider portions and A2 = 9.40cm2 at the constriction. Find the flow speed at the wide portion
A car is parked at the top of a 52m -high hill. It slips out of gear and rolls down the hill. How fast will it be going at the bottom
A person whose near-point distance is 52cm wears a pair of glasses that are 2.2cm from her eyes. Find the refractive power of her glasses
Sally travels by car from one city to another. She drives for 24 min at 63.0 km/h, 52.0 min at 42.0 km/h, and 18.0 min at 81.0 km/h, and she spends 5 min eating lunch and buying gas.
What is the function of the matching layer of ultra sound transducer, What is the function of the backing block
An object initially at rest breaks into two pieces as the result of an explosion. One piece has twice the kinetic energy of the oter piece. What is the ratio of the masses of the two pieces? Which piece has the larger mass?
a dog runs down a driveway with initial speed of 5 m/s for 8s, then uniformly increases his speed to 10 m/s in 5 s, determine How long is his driveway
A 80-g bullet is fired from a rifle having a barrel 0.582 m long. Choose the origin to be at the location where the bullet begins to move. Then the force (in newtons) exerted by the expanding gas on the bullet is 14100 + 9100x - 24250x2, where x is i..
In the annual battle of the dorms, students gather on the roofs of Jackson, A second balloon launched at the same angle hits the edge of Walton's roof. Find the initial speed of this second balloon
The density of water is 1.0 x 10^3 kg/m3. Calculate the gauge pressure in the pipe at this location.
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