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A spring scale on a rotating platform indicates that the horizontal force on a 0.606 kg mass is 1.57 N when the mass is 2.60 m from the axis of rotation. How long does it take for the platform to make one revolution?
A cylindrical tank with a large diameter is filled with water to a depth D = 0.25 m. A hole of cross section A = 6.1 cm2 in the bottom of the tank allows water to drain out. What is the rate at which water flows out
The left mass (10 kg) has a coefficient of kinetic friction between itself and the table of .25, calculate the contact force that acts between the masses
If the mass is suspended by a spring M = 200g, What is the value of the spring constant of the spring
An ideal gas initially at 20°C and 219 kPa has a volume of 4.70 L. It undergoes a quasi-static,, Find the heat added to the gas during the expansion.
An interstate highway has been built through a neighborhood in a city. In the afternoon, the sound level in an apartment in the neighborhood is 95.0 dB as 105 cars pass outside the window every minute. Late at night, the traffic flow is only six c..
A runner of mass 51 kg runs around the edge of a horizontal turntable mounted on a vertical, frictionless axis through its center. The runner's velocity relative to the earth has magnitude 3.50 m/s. The turntable is rotating in the opposite direct..
In fair weather, over flat ground, there may be a downward electric field of 155 N/C. Calculate the charge density of the air
Two particles of masses m and 3.00m are moving toward each other along the x-axis with the same speed v. They undergo a head on elastic collision and rebound along the x- axis. Find out the final speed of the heavier object.
The aorta carries blood away from the heart at a speed of about 40 cm/s and has a radius of approximately 1.1 cm. find the approximate number of capillaries in the human body
A concave spherical mirror has a radius of curvature of 7.00cm. Calculate the size of the image
A 10-m-long glider with a mass of 780kg(including the passengers) is gliding horizontally through the air at 30m/s when a 70Kg skydiver drops out by releasing his grip on the glider. What is the glider's speed
A hockey player strikes a 166 g puck, accelerating it from rest to 48 m/s. If the hockey stick is in contact with the puck for 2.5 ms, what is the average force applied by the stick
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