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Two ice skaters, with masses of 50.0kgand 85.0kg, are at the center of a 60.0m-diameter circular rink. The skaters push off against each other and glide to opposite edges of the rink.
If the heavier skater reaches the edge in 20.0 s , how long does the lighter skater take to reach the edge?
A 14.0 bucket is lowered vertically by a rope in which there is 193 of tension at a given instant. What is the acceleration of the bucket? Is it up or down
An object is being acted upon by 3 forces and moves with a constant velocity. One force is 40N along the x axis , the second is 90 along the y axis. What is the third force
A stone is thrown vertically upward with a speed of 16.0 m/s. How fast is it moving when it reaches a height of 12 m? How long is required to reach this height?
A potential difference of 12 V is placed across the ends of a wire of resistance 2.625times10-3 Ohm. If the density of electrons in the wire is 6times1028 electrons/m3 and the cross sectional area of the wire is 2times10-5 m2, what is the drift veloc..
A converging lens with a focal length of +18.0 centimeter is placed 12 centimeter to the left of a diverging lens having a focal length of -13 centimeter. Find where is the image placed as measured from the diverging lens
The displacement of body in particular second is given by the equation Sn=u+a (2n-1)÷2, u is speed and a is acceleration. Dimensions of Sn are?
A 3.2 µF capacitor and a 6.8 µF capacitor are discharged and then connected in series, What is the equivalent capacitance of this combination
The sun radiates energy at a rate of 3.86*10^26 W. Its radius is 7.0*10^8m. what is the intensity of solar radiation at the top of the earths atmosphere
a supertaker filled with oil has a total mass of 6 108 kg. if the dimensions of the ship are those of a rectangular
A concave mirror has a radius of curvature of 5.5 centimeter. Find the object position for which the resulting image is upright and five times the size of the object
Two narrow slits 50 micrometers apart are illuminated with light of wavelength 500 nm . What is an angle of the m=2 bright fringe in radians? in degrees.
If that ball had been released from the same height, but this time above the surface of the moon, how long would it have taken for the ball to hit the ground
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