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An 845 kilogram race car can drive around an unbanked turn at a maximum speed of 62 m/s without slipping. The turn has a radius of curvature of130 meter. Air flowing over the car's wing exerts a downward-pointing force (called the down force) of 4100 Newton on the car.
(a) Find the coefficient of static friction between track and car's tires?
(b) Find what would be the maximum speed if no down force acted on the car?
Find the resultant magnetic force exerted by the long wire on the square current loop in the figure below if I1 = 8.72 A and I2 = 4.12 A
A 70.0 kg skier with an initial speed of 13.0 m/s coasts up a 2.50 m high rise as shown in Figure 6.23. Find his final speed at the top
A bicyclist rides 4.9 km due east, while the resistive force from the air has a magnitude of 3.4 N and points due west. Find the work done by the resistive force
A disk shaped grindstone of mass 3.0 kg and radius 8 cm is spinning at 600 rpm. After the power is shut off the frictional torque brings the grindstone to rest in 10 s. ? What is the number of complete revolutions of the grindstone after the power is..
A 300-g mass at the end of a Hookean spring vibrates up and down in such a way that it is 2.0 cm above the tabletop at its lowest point, determine the amplitude of vibration
When a battery is connected to a 1.75 ? resistor the current flow through the circuit is 0.810 A, Determine the internal resistance of the battery and the voltage supplied by the battery
A man stands at the midpoint between two speakers that are broadcasting an amplified static hiss uniformly in all directions. Find the total sound intensity that the man hears when he is at his initial position halfway between the speakers
A transformer is to be used to provide power for a computerdisk drive that needs 6.0 V (rms) instead of the 120 V (rms) fromthe wall outlet. Find the current in the secondary
a rock is thrown downward into a well that is 8.85 m deep. if the splash is heard 1.20 seconds later, what was the initial speed of the rock
a plate capacitor has a spacing between its plates of 5.0 mm and a potential difference of 3.0 103 v across its plates.
At the end of a race a runner decelerates from a velocity of 8.00 m/s at a rate of 0.300 m/s2. What is her final velocity
A piece of aluminum pipe has an inner radius of r_a = 2.0 cm and an outer radius of r_b = 2.2 com. Calculate the resistance of a 1 m long piece of pipe
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