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Q. A banked circular highway curve is designed for traffic moving at 62km/h. The radius of the curve is 217m. Traffic is moving along the highway at 42.00 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow cars to take turn without sliding off the road? (Assume the cars do not have negative lift.)
Q. A mass-spring system oscillates with amplitude of 3.3cm. If the spring constant is 226 N/m and the mass is 448g, establish the mechanical energy of the system.
Two small insulating spheres with radius 4.00×10-2 are separated by a large center-to-center distance of 0.595. One sphere is negatively charged, with net charge -2.40, and the other sphere is positively charged, with net charge 3.70. The charge i..
The Apollo Lunar Module was used to create the transition from the spacecraft to the moon's surface and back. Consider the similar module for landing on the surface of Mars. Use conservation of mechanical energy to answer these questions.
What is the magnitude of the external force essential to hold a 2 kg cart motionless at the top of a 2m high incline which is 30 degrees.
What is an approximate absorbed dose rate in Gy per day in water at the center of the bucket if 163 atoms of Cs-137 disintegrate per g s? Use the straight-ahead approximation and mean-radius method of calculating the photon dose. Give the answers for..
If his arms are capable of exerting a force of 1400 on the vine, what is the maximum speed he can tolerate at the lowest point of his swing? His mass is 82, and the vine is 6.00 long.
Displacement d2 is in the xz plane 30° from the positive direction of the x axis, has a positive z component, and has magnitude 1.10 m.
A copper strip (n = 8.47 1022 electrons per cubic centimeter) 2 cm wide and 0.07 cm thick is used to measure the magnitudes of unknown magnetic fields that are perpendicular to the strip. Find out the magnitude of B for the following Hall voltages..
A loudspeaker of mass 22 is suspended a distance of = 1.6 below the ceiling by two cables that make equal angles with the ceiling. Each cable has the length of = 3.10.
A projectile is fired at an upward angle of 45° from the top of a 212 m cliff with a speed of 161 m/s. What would be its speed while it strikes the ground below.
A 79 kg pole-vaulter falls from rest from a height of 4.6 m onto a foam-rubber pad. The pole-vaulter comes to rest 0.30 s after landing on the pad. compute the athlete's velocity just before reaching the pad.
Three uniform thin rods, each of length L = 19 cm, form an inverted U. The vertical rods each have a mass of 12 g; the horizontal rod has a mass of 44 g. What are (a) the x coordinate and (b) the y coordinate of the system's center of mass.
A train is travelling up a 4.0 incline at the speed of 3.25 when the last car breaks free and begins to coast without friction. How long does it take for the last car to come to rest momentarily.
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