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A tractor is pulling a sled at a velocity of 6 ft/s. If the rear wheels are 5 ft in diameter and the front wheels are 2 ft in diameter.
i. What is relative velocity of the wheels with respect to the ground at the rear wheels?
ii. What is relative velocity of the wheels with respect to the ground at the front wheels?
iii. What is angular velocity of the rear wheels?
iv. What is angular velocity of the front wheels?
The surfaces of the lens have radii of curvature 27.1 cm (located on the object side of the lens), determine the index of refraction
A skier, weighing 453 n, is skiing down a slope that has an incline of 29 degrees above the horizontal. Compute the acceleration of the skier (coefficient of kinetic friction between the skis and snow is 0.21)
A spherical mirror has a focal length of -14 cm. Where is the mirror's image for an object which is at a distance of 30 cm? Draw the ray diagram for this set up
A metal bar with a resistance of 30 Ohm is rotated around its center in a magnetic field of strength .5 T which is oriented perpendicularly to the plane of the bar's rotation. what is the electrical power dissipated in the resistor
A solenoid 3.0 cm long consists of 8942 loops of wire. If the magnetic field inside the solenoid is 1.0 T, what is the magnitude of the current that flows through it
A crude model of the human vocal tract treats it as a pipe closed at one end.Find the effective length of the vocal tract in a person whose fundamental tone is 550Hz . Sound speed in air at body temperature is 354 m/s.
A ball of mass 0.206 kg with a velocity of 1.54 m/s meets a ball of mass 0.291 kg with a velocity of -0.396 m/s in a head-on, elastic collision. (a) Find their velocities after the collision. V1f = m/s V2f = m/s (b) Find the velocity of their center ..
Two objects with masses of 3.90 kg and 6.20 kg are connected by a light string that passes over a frictionless pulley, as in the figure below. (The figure shows a pulley with the two objects on opposite sides hanging vertically) (a) Determine the ..
At t=0 a grinding wheel has an angular velocity of 21.0rad/s . It has a constant angular acceleration of 35.0rad/s^2 until a circuit breaker trips at time t = 2.50s. What was its acceleration as it slowed down
The velocity v of waves on a vibrating string depends on the tension T in the string and the mass per unit length λ of the string. Derive an expression for v by using the dimensional analysis method
question11. the moon has a diameter of 3.48 106 m and is a distance of 3.85 108 m from the earth. the sun has a
Describe its motion. (Will it slide forever at a constant velocity? Will it slide to a stop? Illustrate in what way will its energy changes be similar to that of a pendulum?)
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