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Question 1:
A car with 60 cm diameter tires is traveling at a constant speed of 100 km/hr. What is the angular velocity of the tires in rad/s?
Question 2:
A 3 kg ball is traveling in a circle of radius 2 meters with a tangential velocity of 2 meters/second. Find the centripetal acceleration of the ball and the centripetal force acting on it.
Question 3:
An arrow is shot at an angle such that it's horizontal velocity is 40 m/s and it's vertical velocity is 20 m/s. Find the horizontal distance the arrow will travel before hitting the ground.
Question 4:
A bolt requires 15 Nm or torque to loosen it. How much force needs to be applied to a 20 cm long wrench to loosen the bolt? Assume the force is applied perpendicular to the handle of the wrench.
Question 5:
A baseball is thrown such that it is in the air for 4 seconds and lands 100 m away. Find the initial vertical and horizontal components of the baseball's velocity.
You are standing on a scale inside an elevator. The scale reads exactly your weight. What could be the velocity of the elevator, What is the acceleration of the elevator
Your accident-reconstruction team has been hired by the local police to analyze the following accident. A careless driver rear-ended a car that was halted at a stop sign. Now before impact, the driver slammed on his brakes, locking the wheels.
Suppose a large conducting slab is polarized (one side is positive and the other is negative) What is the electric field force (E) inside the slab
A player hits the ball at 48.2 m/s at an angle of 29.0 degrees above the horizontal. The outfield bleachers are 145 m away from home plate. What is the maximum height, above where the player hits the ball that the bleachers can be
A windmill has an initial angular momentum of 8220 kg•m2/s. Find the torque acting on the windmill
A sound wave with intensity 20 mW/m2 interferes destructively with a sound wave that has an intensity of 4 mW/m2. What is the intensity of the superposition of the two
A 1500 kg car traveling at 90 km/h east collides with a 3000 kg cartraveling at 60 km/h south. What is the direction of motion of the cars after collision
In a head-on collision, a car stops in 0.27s from a speed of 24m/s}. What force is applied to the driver by his seat belt during that fraction of a second
A man pushes a lawn mower on a level lawn with a force of212N. If 52% of this is directed downward, how much work is done bythe man in pushing the mower 4.8 m.______J
Bob who is working on a glacier wants to experiment with heat andhas constructed a two part metal rod. The left rod is silver andhas length L1 = .5454 M, and has a cross sectional area A = 3.1416CM^2. Calculate the heat flow per second through the ..
What would be the equilibrium temperature when a 253-g block of copper at 281^circ C is placed in a 137g aluminium calorimeter cup containing 817-g of water at 14.5^circ C.
A partly-full paint can has 0.20 gallons of paint left in it. If all the remaining paint is used to coat a wall evenly (wall area = 18 m2), how thick is the layer of wet paint
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