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Q. A circular curve of highway is designed for traffic moving at 92km/h. suppose the traffic consists of cars without negative lift. (a) If the radius of the curve is 210m, what is the correct angle of banking of the road? (b) If the curve were not banked, what would be the minimum coefficient of friction between tires and road that would keep traffic from skidding out of the turn when travelling at 92km/h?
Q. Two plane mirrors facing each other are 10 m apart. A woman stands 3 m from one of the mirrors and looks at the mirror and sees two distinct images. How far are these images from the woman?
Find out the lengths of acceleration and deceleration phases
What is magnitude of the difference in frequency
The yellow light from a helium discharge tube has a wavelength of 587.50. When this light illuminates a certain diffraction grating it produces a first-order principal maximum at an angle of 1.050.
A toy train rolls around a horizontal 1.30 diameter track. The coefficient of rolling friction is 0.10.
A ball is thrown directly up from the ground with speed vsub0. At the same time, a second ball is dropped from rest from a height H, straight above the point where the first ball was thrown upward. There is no air resistance. A) Find out the time at ..
The heat of vaporization of ethyl alcohol is about 200 cal/g. If 2.3 kg of it were allowed to vaporize in a refrigerator, how many grams of ice will be formed from 0°C water.
While standing on a bridge 45m above the ground, you drop a stone from rest. When the stone has fallen 4.90m, you throw a second stone straight down. What initial velocity should you give the second stone if they are both to reach the ground at th..
Agree on the mass of the earth knowing that the mean radius of the moon's orbit about the earth is 248,910 mi and that the moon requires 28.32 days to complete one full revolution about earth.
A 75-kg person sits on a 3.7-kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.5 cm in diameter. Find out the pressure exerted on the floor by each leg of the chair; assume the weight is evenly distributed.
Problem on a hare and a tortoise battle
Find out the effective coefficient of kinetic friction
Compute the required time by the current to reach an initial value in an inductive discharge circuit.
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