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A flat (unbanked) curve on a highway has a radius of 240 meter. A car rounds the curve at a speed of 18.0 m/s. Find the minimum coefficient of friction that will prevent sliding?
what are some popular voltagecurrentresistance analogies? what are some ways you have learned about or will learn about
At a dock, a crane lifts a 2094 kg container 14 m, swings it out over the deck of a freighter, and lowers the container into the hold of the freighter, How much work is done by the crane on the container?
Near Earth, the density of protons in the solar wind (a stream of particles from the Sun) is 12.8 cm-3, and their speed is 615 km/s. Find the current density of these protons
The area of a room floor is 25ft^2. How many square meters are on the floor? a)7.6m^2 b)2.3m^2 c)82m^2 d)2.6*10^2m^2 e)none
Two sheets of polarizing material are placed with their transmission axes at right angle to one another. What is the intensity of the transmitted light when the middle sheet is removed
The two strands of the helix-shaped DNA molecule are held together by electrostatic forces as shown in the Figure 16-44 in the textbook. Estimate the net force between a cytosine and a guanine
One particle has a mass of 4.00 10-3 kg and a charge of +7 µC. A second particle has a mass of 5.00 10-3 kg and the same charge. Find the initial separation between the particles
You are riding in an elevator on the way to the eighteenthfloor of your dormitory. The elevator is accelerating upwardwith a = 1.90 m/s2. what magnitudeof force must you apply
Blocks A, B, and C are placed as in the diagram below and connected by ropes of negligible mass. What is the weight of block
The coefficient of static friction between the 3000 lb car's tires and the road is 0.5. Determine the steepest grade the car can drive up at constant speed if car has (a) rear=wheel drive; (b) front-wheel drive; (c) four wheel drive.
We have studied diffraction from a single slit, where light is sent through a thin opening. how thick was this strand of hair
a simple harmonic oscillator with frequency f 2 hz has initial conditions x0 0.76m and v0 0.31 ms. calculate the
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