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Q. A pendulum clock with a brass suspension system m is calibrated so that its period is 1s. at 11*C (degree Celsius). If the temperature increases to 44oC, by how much does period change?
Q. Antarctica is roughly semicircular, with the radius of about r = 1900 km. The average thickness of its ice cover is about h = 2700 m. How numerous cubic centimeters of ice does Antarctica contain?
Starting from rest, a 40 kg body reaches a speed of 8.0m/s in 2s. Calculate the force acting on the body?
what is the speed of the proton in the beam.define the spread in these values.
The alpha line in the Balmer series of the hydrogen spectrum consists of light having a wavelength of 6.56 ×10-7 meter. Compute the frequency of this light.
What is x and y coordinates of the shell
A train is travelling up a 3.2 degree incline at a speed of 3.25 m/s when the last car breaks free and begins to coast. How long does it take for the last car to come to rest.
The tension Tu in upper (taut) segment of the belt is 170 N, and flywheel has a clockwise angular acceleration of 1.67 rad/s2. Find out the tension in the lower (slack) segment of the belt.
If a freight train can accelerate at 0.050 m/sec2, how far must it travel to increase its speed fro 2.0 to 8.0 m/sec?
A catcher stops a ball traveling at 28.0 m/s in a distance of 55.30 cm and feels a force of 313 N against his glove. What is the mass of the ball.
A 0.33kg block is located 0.2 m from the center of a turntable. The coefficient of static friction between block and surface of the turntable is 0.44.
A 1050 kg car carrying four 84 kg people travels over a rough "washboard" dirt road with corrugations 4m apart which causes the car to bounce on its spring suspension. The car bounces with maximum amplitude while its speed is 24km/h. The car now s..
Identical samples containing 32P are measured for a period of 1 hr in a counter having an efficiency of 44 percent and a negligible background. From a large number of observations, the mean number of counts in 1 hr is (2.93 x 10^4)
A 2kg ball traveling to the right with a speed of 4 m/s collides with a 4 kg ball traveling to the left with a speed of 2 m/s. The total momentum of the two balls after the collision is what.
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