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Support a meter stick at one end using a string and a spring scale place a 500 g load at the end of the meter stick measure the angle between the string and the meter stick (28o). Find what the scale should read.
A gyroscope with rotational inertia 6.0 10-3 kg·m2 is precessing in a horizontal plane at 0.50 rad/s under the influence of a 0.28 N·m torque caused by a force pointing vertically downward
At t = 5.0 seconds, the cheetah is standing still, having knocked over the gazelle. Illustrate what is the average acceleration of the cheetah from t = 0 to t = 5.0 seconds?
You walk 40m to the North then turn 50 degrees to your right and then walk another 30m. How far are you from where you originally started
The two conducting rails in the drawing are tilted upwards so theyeach make an angle of 30.0° with respect to the ground.
A ball is shot from the ground into the air. At a height of 10.60 m, the velocity is observed to be v = (8.60 m/s) i + (6.50 m/s) j
Two capacitors, one 12.0 μf and the other of unknown capacitance, are connected in paralel across a battery of EMF 9.0V. The total enery stored in the two capacitors is 0.0115 J.
A baseball is thrown horizontally at the catcher, who is 60.0 ft away. It is thrown with a velocity of 87.5 mph. How far does the baseball fall during this pitch.
An airplane of mass 1800 kilogram and flying at 540 km/h loops the loop in a circle of radius 250 meter. Obtain the downward thrust of air at highest point of loop
A commuter train passes a passenger platform at a constant speed of 39.9 m/s. The train horn is sounded at its characteristic frequency of 320 Hertz. Find what wavelength is detected by a person on the platform as the train approaches
A uniform 1.9-kg rod that is 0.90 m long is suspended at rest from the ceiling by two springs, one at each end. Find the angle that the rod makes with the horizontal
q1. a 35 g horizontal metal bar 11 cm long is free to slide up and down between two tall vertical metal rods. a
The temperature of a copper bar rises by 10.0°C when it absorbs 2.03 kJ of energy by heat. The mass of the bar is 525 g
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