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A curve of radius 68 m is banked for a designed speed of 85km/h. If the coefficient of static friction is 0.30, at what range of speeds can a car safely make the curve? (You must show schematic and free-body diagrams, and apply Newton's 2nd law of motion.)
An electron is projected with an initial speed 1.00×106 into the uniform field between the parallel plates. Suppose that field between the plates is uniform and fixed vertically downward, and that field outside the plates is zero. The electron enters..
A block with a mass m1=60 kilogram sitting on a frictionless table is connected to a suspended mass m2=2.0 kilogram by a light string passing over a frictionless pulley. calculate the speed of which mass m2 hits the floor
Calculate the average force per nail when Sarah, who weighs 120 pounds, lies on a bed of nails and is supported by 600 nails
A constant retarding torque of 15 m·N stops a rolling wheel of diameter 0.50 m in a distance of 21 m. How much work is done by the torque
The first stage of a space vehicle consumed fuel and oxidizer at the rate of 1.85 x 104 kg/s, with an exhaust speed of 3.10 x 103 m/s. Evaluate the thrust produced by these engines
If there is no electric field and the particle enters the magnetic field in a direction perpendicular to the lines of flux show that the trajectory is a circle with radius:r = (mv)/(qB)
A body of mass 1.8 kg makes an elastic collision with another body at rest and continues to move in the original direction but with 1/7 of its original speed. What is the speed of the two-body center of mass
Two vectors having equal magnitudes (A) makes an angle z with each other. Find the magnitude and direction of the resultant and prove that the resultant of two equal vectors bisects the angle between them.
Calculate the minimum wavelength x-ray that can be produced when a target is struck by an electron that has been accelerated through a potential difference of 10.7 kV
A laser that produces a spot of light that is 1.20 mm in diameter is shone perpendicularly on the center of a thin, perfectly reflecting circular (2 mm in diameter) aluminium plate mounted vertically on a flat piece of cork that floats on the surface..
You drop a stone into a deep well and hear it hit the bottom 1.80 s later. This is the time it takes for the stone to fall to the bottom of the well, plus the time it takes for the sound of the stone hitting the bottom to reach you. Sound travels ..
Find the gravitational pull between earth and the moon. Given, mass of earth = 5.97 * 10^24 kg, mass of moon = 7.35 8 10 kg,
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