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Q1. If one end of a heavy rope is attached to a light rope and wave is sent down the heavy rope. What would happen to the frequency, speed and wavelength as it changes to the light rope?
Q2. An automobile club plans to race a 780 kg car at the local racetrack. The car needs to be able to travel around several 170 m radius curves at 85 km/h. What must the banking angle of the curves be so that the force of the pavement on the tires of the car is in the normal direction? (Hint: What does this requirement tell you about the frictional force?)
Ashley (65 kg) and Ryan (80 kg) ride their motorcycles (100 kg) at a speed of 15 m/s in a spherical metal cage with a diameter of 10m, What is the normal force on Ryan
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. What is the total time the blue car is moving
A 965-kg satellite orbits the Earth at a constant altitude of 94-km. What is the change in the system's potential energy
An air-track glider attached to a spring oscillates between the 12.0cm mark and the 61.0cm mark on the track. find maximum speed of the glider
Suppose each of the object's three dimensions is increased by a factor of 3 without changing the material od which the object is made. By what factor will the density change
find the angular displacement of the propeller.
If John Glenn weighed 640N on Earth's surface, i) how much would he have weighed if his Mercury spacecraft had (hypothetically) remained at twice distance from the center of the Earth? ii) Why is it said that an astronaut is never truly weightless..
A 23 bullet traveling 240 penetrates a 4 block of wood and emerges going 170. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges.
Suppose that a plane is flying due west with an airspeed of 222 km/h. What is the magnitude of the wind velocity
A sanding disk with rotational inertia 2.4 10-3 kg•m2 is attached to an electric drill whose motor delivers a torque of 8 N•m about the central axis of the disk. What are the following values about the central axis at the instant the torque has been ..
The force of repulsion that two like charges exert on each other is 4.0 N. What will the force be if the distance between the charges is increased to 6 times its original value.
Calculate the ground state energy of of pi-electrons in octatetraene, C8H10, using the particle in a box model. To calculate the box length, assume that the molecule is linear and use the values 1.35 and 1.54 angstroms
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