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Q. A small 15{rm g} bug stands at one end of a thin uniform bar that is initially at rest on a smooth horizontal table. The other end of the bar pivots about a nail driven into the table and can rotate freely, without friction. The bar has mass 60.00 g and is 110.0 cm in length. The bug jumps off in the horizontal direction, perpendicular to the bar, with the speed of 20 cm/s relative to the table. Find out angular speed just after insect leaps.
A stone has a mass of 6.00 x10-3 kg and is wedged into the tread of an automobile tire. The coefficient of static friction between the stone and each side of the tread channel is 0.84.
How much Power does it take to accelerate the 70,000 lb rail car from rest to 10mph in 20 feet with 1ft dia. wheels.
How to find out the magnitude of the acceleration
Compute the Force of Friction (Ff) for a 5kg aluminium block being pulled with constant velocity (uniform motion), up the steel plank that is at a 30degrees angle to the horizontal.
The length of an air column that produces a strong resonance in a cylinder is 0.18m, what is the frequency of the tuning fork being used .
A 3 kg object id released from rest at a height of a 5 meter curved frictionless ramp. At the foot of the ramp is a spring force constant of k= 400n/m the object slides down the ramp and onto the spring compressing it to the distance x before comi..
A parallel-plate capacitor has an area of 5.15 cm2, and the plates are separated by 1.05 mm with air between them. It stores a charge of 337pC. What is the potential difference across plates of the capacitor.
A 4.25 bullet traveling horizontally with a velocity of magnitude 375 is fired into a wooden block with mass 1.10 , initially at rest on a level frictionless surface. The bullet passes by the block and emerges with its speed reduced to 110 .
What is the average speed of a rider on this Ferris wheel.
What is magnitude of the momentum
A 45kg pole-vaulter running at 12 m/s vaults over the bar. Her speed when she is above the bar is 1.90m/s. Avoid air resistance and determine her height as she crosses the bar.
An object falls because of gravity at a rate of -9.80 m/s2 (- sign is indicative of a downward direction) for 10.00 Seconds. If it starts from rest (vo= 0) and its position starts from do= 0.0, where is it 10.00 Seconds later.
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