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A hockey puck leaves a player's stick with a speed of 9.00 m/s and slides 35.0 m/s before coming to rest. Obtain coefficient of friction between the puck and the ice.
To focus a camera on objects at different distances, the converging lens is moved toward or away from the film, so a sharp image always falls on the film. A camera with a telephoto lens (f = 215.0 mm) is to be focused on an object located first at..
How much higher would the ball have gone in a vacuum. The time constant of an RC circuit is 4.8 s. How much time t is needed for the capacitor (uncharged initially) to gain one-half of its full equilibrium charge.
The maximum electric field 8.3 m from a point light source is2.3 V/m. What is the power of the source
A solid wood door 0.60 m wide is hung in a metal door way at 0.0°C by a clearance of 2.3 mm on the side. If the linear coefficient of expansion of the wood is 6.0*10 -5 (C°)-1, at what temperature would the door begin to touch the side of the doorway..
A woman of massm=50.1kg sits on the left end of a seesaw-a plank of lengthL=3.99m-pivoted in the middle, Find the normal force exerted by the pivot if the plank has a mass ofmpl=10.2kg
A black body has a mass of 3.76 kg, specific heat of 2000 J/(kg· C°), surface area of 0.214 m2, emissivity 1.00, and initial temperature 99° C. The surroundings are at a temperature of 18.6° C.
a particle moves along the path whose equation is r 6theta feet. if the angle theta 2t3 radians determine the
A toddler, initially standing next to his father in the front yard, walks slowly away from his dad in the direction of 30.0? N of E for 3.50 meters. How far was the distance he walked due south
A diffraction pattern forms when light passes during a single slit. The wavelength of the light is 686 nm. Decide the angle that locates the first dark fringe when the width of the slit is (a) 1.7 x 10-4 m and (b) 1.7 x 10-6 m.
A point charge +6.7 uC is placed at the origin, and a second charge -3.6 uC is placed in the X - Y plane at (0.40 m , 0.55 m ). Where should a third charge be placed in the plane
Explain why you are safe and unaffected inside a car that is struck by lightning. Also explain why it might not be safe to step out of the car just after the lightning strike, with one foot in the car and one on the ground.
What are the strength and direction of an electric field that will balance the weight of a 1.2 g plastic sphere that has been charged to -2.9 nC
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