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A 63.1 kilogram skier coasts up a snow-covered hill that makes an angle of 26.4 degree with the horizontal. The initial speed of the skier is 9.91 meter per second. After coasting a distance of 2.27 meter up the slope, the speed of the skier is 4.64 m/s.
(a) Determine the work done by the kinetic frictional force that acts on the skis.
(b) Obtain the magnitude of the kinetic frictional force?
A rock climber stands on top of a 51 m high cliffoverhanging a pool of water. He throws two stones verticallydownward 1.0 s apart and observes that they cause a singlesplash. The initial speed of the first stone was2.4 m/s.
A ball of mass 0.196 kg with a velocity of 1.41 m/s meets a ball of mass 0.302 kg with a velocity of -0.393 m/s in a head-on, elastic collision. (a) Find their velocities after the collision. 1f = m/s 2f = m/s (b) Find the velocity of their center of..
An 845 kilogram race car can drive around an unbanked turn at a maximum speed of 61m/s without slipping. Find the coefficient of static friction between track and car tires
A hurricane wind blows across a 7.10 15.1 flat roof at a speed of 130. How much force is exerted on the roof
A block is on a horizontal surface (a shake table) that is moving back and forth horizontally with simple harmonic motion of frequency 2.3 Hz. How great can the amplitude of the SHM be
The average intensity of light emerging from a polarizing sheet is0.692 W/m2, and the averageintensity of the horizontally polarized light incident on the sheetis 0.852 W/m2. Determine the angle that the transmission axis of the polarizing sheet make..
A 50-kg pilot comes out of a vertical dive in a circular arcsuch that at the bottom of the arc her upward acceleration is 8.5g. what is the radius of the circular arc
You come out of the grocery store with a full shopping cart. You stop behind your car to get out your keys, unlock your car, and put your stuff inside. You didn't notice, but the parking lot is sloped at an angle of 3.0 degrees, so as soon as you ..
An elevator has a mass of 1200Kg and has cables which arerated at no more than 9.82 E+04 N of tension. What is the largest load of passangers, in Kg, that it can carry safely
A small motor is mounted on the axis of a space probe with its rotor (the rotating part of the motor) parallel to the axis of the probe. Through how many revolutions has the rotor turned
A narrow beam of light containing red (660 nm) and blue (470 nm) wavelengths travels from air through a 1.60 cm thick flat piece of crown glass and back to air again. The beam strikes the glass at a 35.0° incident angle.
A carefully designed experiment can measure the gravitational force between masses of 3 kg. Given that the density of iron is 7860 kg/m3, what is the gravitational force between two 3.00-kg iron spheres that are touching?
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