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In the measurement of length of a cylinder, the main scale reading of a vernier caliper is 1.5 cm, the vernier reading is 6, and the least count of the vernier is 0.01 cm. Find the reading of the length of the cylinder.
the potential of a typical storm cloud can be as high as 109 volts. when lightning is produced a typical lightning
A 3000kg rocket and its 500 kg payload are traveling at a speed of 2000m/s. what is the velocity of the payload after separation
In a typical lightning flash, the potential difference between the cloud and the ground is 10^9 V and the charge transferred is 30 C. Calculate the final speed of the car
A very long uniform line of charge has charge per unit length 4.80x10^-6 and lies along the x-axis. A second long uniform line of charge has charge per unit length -2.40*10^-6 and is parallel to the x-axis at y=0.400m.
A rock is thrown downward into a well that is 8.90 deep. If the splash is heard 1.20 seconds later, what was the initial speed of the rock? Take the speed of sound in the air to be 343 m/s.
A 120 V space heater has two power settings. The equivalent resistance at the two settings are 19 ? and a 37 ?, After making a guess, determine the power at the low setting
A particle of mass m moves inside a bowl. if the surface of the bowl is given by the equation z=(a/2)(x2+y2), where a is the constant , calculate the Lagrangian of the system
Bob walks 250 m south, then jogs 560 m southwest, then walks 250 m in a direction 25 degrees east of north. Find the direction of the displacement that will return Bob to his starting point by the most direct route
You are lowering two boxes, one on top of the other, down the ramp by pulling on a rope parallel to the surface of the ramp. find the magnitude of the friction force on the upper box
Suppose a satellite is in a circular orbit 3.0 Earth radii above the surface of the Earth (3.0 Earth radii from the center of the Earth). By how much does it have to increase its speed in order to be able to escape Earth?
The ground reaction force actin gon the long jumper is 4500N acting forward and upward at an angle of 78 degrees from horizontal. What is the vertical component of the ground reaction force
A merry-go-round starts from rest and accelerates uniformly over 10.5 s to a final angular velocity of 6.90 rev/min. Find the person's maximum radial acceleration
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