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Q. A person pulls a tobaggan for a distance of 35.0m along the snow with a rope directed 25.0 degrees above the snow. The tesion in the rope is 94.0N (a) How much work is done on the toboggan by the tension force? (b) How much work is done if the same tension is directed parallel to the snow?
Q. A mobile at the art museum has a 2.0 steel cat and a 4.0 steel dog suspended from a lightweight cable. It is found that angle 1 = 21 degrees when the center rope is adjusted to be perfectly horizontal.
What is the tension in the rope 3? What is the angle of rope 3?
How long after being thrown will the balls collide
How many liters of gasoline would give the same mechanical energy given that each liter provides 8.50x10^6 J of mechanical energy.
A wire streches from the top of a vertical pole to a point on level ground 16 feet from the base of the pole. if the wire makes an angle of 62 degrees withe the ground, find the height of the pole and length of the wire.
Two lenses that are L = 42 cm apart are used to form an image, as shown in figure. Find the distance from lens and magnification of the image.
What is braking distance for the first train
A block of mass 4.0 kg is put on top of a block of mass M = 5.5 kg. To cause the top block to slip on the bottom one, while the bottom one is held fixed, a horizontal force of at least 16 N must be applied to the top block. The assembly of blocks is ..
A bullet of mass 0.018kg traveling horizontally at a high speed of 290m/s embeds itself in a block of mass 4 kg that is sitting at rest on a nearly frictionless surface.
What inductance must be connected to a 25 pF capacitor in the oscillator capable of generating 480 nm (i.e., visible) electromagnetic waves.
A 75-m long train begins unknown uniform acceleration from rest.The front of the train has a speed of 23 m/s when it passes arailway worker who is standing 180m from where the front of the train started. What will the speed of the last car be as i..
A 140g coin sits on a horizontally rotating turntable. The turn table makes on revolution each 2 s. the coin is located 8.00 cm from the axis of rotation of the turntable. The acceleration of gravity is 9.81 m/s/s. what is the frictional force acting..
Reading glasses of what power are needed for a person whose near point is 110cm, so that he can read a computer screen at 52cm? suppose a lens-eye distance of 2cm.
A small radio operates on 3.00 V and has a resistance of 15 coulomb. At what rate does the radio use electric energy.
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