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Q1. A car goes round a flat curve at a speed of 32 ms-1. If the radius of the curve is 200 m, find the minimum value for the coefficient of friction so that the car can go around the curve without skidding.
Q2. A motorcycle starts from rest and has a constant acceleration. In a time interval t, it undergoes a displacement x and attains the final velocity v. afterwards t is increased so that the displacement is 3x. In this same increased time interval, what final velocity does motorcycle attain?
A 1500 {rm kg} car skids to the halt on a wet road where mu_k = 0.50. How fast was the car travelling if it leaves 66-{rm m}-long skid marks.
A dentist uses a small mirror with a radius of 36 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 16 mm from the tooth, what is the magnification of an image.
Compute the force of tension or compression
Determine the power distribution in carrier and sidebands if the transmitted power is 1,000 W and mf = 1.
Find the magnitude of the maximum force applied horizontally to upper block (block 1) that will cause the two blocks to slide together.
A parallel-plate capacitor is charged to an electric potential of 337 V by moving 3.95×1016 electrons from one plate to the other. How much work is done in charging the capacitor.
An ice block is pushed horizontally on a frictionless surface with initial velocity v0. At some point, it comes to the nearly semicircular bump with a radius R=0.42m and the height h=0.33m above the ground.
How fast is the roller coaster moving at the top of the loop
What is the maximum speed the masses
A magnifier has a magnification of 8 times. How far from the lens should an object be placed so that its (virtual) image is at the near-point distance of 25 {rm cm}.
If John Glenn weighed 640 N on Earth's surface, a) how much would he have weighed if his Mercury spacecraft had (hypothetically) remained at twice the distance from centre of Earth? b) Why is it said that an astronaut is never truly "weightles".
Use Gauss law to compute amount of charge
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