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A sky-diver jumps out of a plane and achives (terminal velocity) before opening his parachute. Explain what is meant by the term terminal velocity, why it occurs and what value of velocity a typical sky diver might experience. Include references to your source of data.
Sunlight strikes a piece of crown glass at an angle of incidence of 40.0o. Calculate the difference in the angle of refraction between a red (660 nm) and a violet (410 nm) ray within the glass.
a heavy box of school books (mass is 50kg) was set down at rest on an inclined street (theta = 30 degrees). Draw a force Diagram of the box
A baseball has a mass of 0.140 kg, and it is pitched towards home plate at a speed of 54.0 m/s. what is the final speed of the ball
Two vehicles are approaching an intersection. One is a 2400 kg pickup traveling at 18.0 m/s from east to west (the - x direction), What is the direction of the net momentum
A bullet is fired horizontally from a 70 m tall building with a speed of 1100 m ? s. Calculate the vertical component of its velocity
A 85 cm^3 block of iron is removed from an 800 degree Celsius furnace and immediately dropped into 200 ml of 20 degree celsius water
A car undergoes a displacement of 500m due east, followed by another displacement due south of 1200m. Calculate the total distance traversed by the car
At a carnival, you can try to ring a bell by striking a target with a 10.3-kg hammer. How fast must the hammer be moving when it strikes the target so that the bell just barely rings
Three charged particles are placed at each of three corners of an equilateral triangle whose sides are of length 2.8 . Two of the particles have a negative charge: = -6.7 and = -13.4 . The remaining particle has a positive charge, = 8.0 . What is ..
The initial kinetic energy of the neutron is 2.50X10^-13 J. Find its final kinetic energy
Find a relation between the variables that would guarantee that the block is initially slowing down.
The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration of -5.20 m/s2 for 4.05 s, making straight skid marks 61.0 m long, all the way to the tree. With what speed does the car then s..
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