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Darius the dare devil plans to launch his rocket carat the top a ramp inclined at 20.0 degrees to the horizontal over apit of fire 20 m in diameter, unfortunately the rocket motor failsat the foot of the ramp, when his speed is 12.6 m/s. The rollingfriction of the car is 0.020. The height of the ramp is 2.50 m.Where will he land? (Will he burn?)
A battleship simultaneously fires two shells toward two identical enemy ships. One shell hits ship A, which is close by, and the other hits ship B, which is farther away. The two shells are fired at the same speed. Assume that air resistance is negli..
Four long wires are kept on each corner of a square of side 58cm and the current of 22A flows throgh them in the direction, Find the magnitude of the net force on the wire
The planet Jupiter has a satellite, Europa, which travels in an orbit of radius 6.710×108 m with a period of 3.55 days. Calculate the mass of Jupiter from this information
What is the smallest number of whole logs (? = 725 kg/m3, radius = 0.0917 m, length = 3.10 m) that can be used to build a raft that will carry four people
A 42.0 kg seal at an amusement park slides from rest down a ramp into the pool below. If the seal reaches the water with a speed of 4.30 m/s, what is the work done by kinetic friction
The great, grey-green, greasy Zambezi River flows over Victoria Falls in south central Africa. what is the velocity of the water when it hits the bottom
In the school cafeteria, a trouble-making child blows a 10.0 g spitball through a 30.0 cm straw. What was the maximum force on the spitball
what is the minimum diameter of the eyepiece required to collect all the light entering the objective from a distant point source located on the telescope axis
A spinning flywheel has rotational inertia I = 417 kg·m2. Its angular velocity decreases from 19.5 rad/s to zero in 320 s due to friction. What is the frictional torque acting? Take positive to be "with the flywheel's rotation", and negative to be "o..
In her bathroom, Mindy has an overhead heater that consists of a coiled wire made of nichrome that gets hot when turned on. calculate the resistance of the heater when it is turned on
Two air hockey pucks, moving with identical speeds v, collide on a level table. With respect to the table, puck 1 is moving north, What is the relative speed between the two pucks
Two converging lenses having focal lengths of f1 = 10.9 cm and f2 = 20.0 cm are placed d = 50.0 cm apart. What is the overall magnification of the system
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