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The angular speed of a propeller on a boat increases with constant acceleration from 12 rad/s to25 rad/s in 2.4 sec. Find through what angle did the propeller turn during this time?
A 30-meter steel tape is correct at a temperature of 20.0(C). The distance between two points, What is the true distance between the points
Using Newton's laws, Evaluate the magnitude of the normal force that the floor exerts on the chair.
question1a 1000 kg car carrying four 76 kg people travels over a rough washboard dirt road with corrugations 4.0 m
In the process of changing a flat tire, a motorist uses a hydraulicjack. She begins by applying a force of 45 N to the input piston,which has a radius r1. obtain the force that the output plunger applies to the car
The label on a 12.0-V truck battery states that it is rated at 181.0 A·h (ampere-hours). Treat the battery as ideal. How much electric energy can the battery supply
A girl of mass 40 kg jumps with a horizontal velocity of 5 m s-1 onto a stationary cart with frictionless wheels. What is her velocity as the cart starts moving
On planet Tehar, the freefall accelration is the same as that on Earth, but there is also a strong downward eletric field that is uniform close to the planet's surface. A 2 kg ball having acharge of 5 micro Coulombs is thrown upward at a speed of ..
As a 2.0-kg block travels around a 0.50-m radius circle it has anangular speed of 12 rad/s. The circle is parallel to the xy plane and is centered on the z axis, adistance of 0.75m from the origin. The z component of the angular momentum around th..
While on a vacation to Kenya, you visit the port city of Mombassa on the Indian Ocean. Calculate the muzzle velocity necessary to hit a pirate ship 300 meters from the base of the fort
A turntable rotates with a constant angular acceleration 2.20rad/s^2. What was the angular velocity of the wheel at the beginning of the time interval 4.40s
At one location on the Earth, the rms value of the magnetic field caused by solar radiation is 1.85 µT. (a) Calculate the rms electric field due to solar radiation. V/m (b) Calculate the average energy density of the solar component of electromagn..
A sailboat is heading directly north at a speed of 18 knots (1 knot = 0.514 m/s). The wind is blowing towards the east with a speed of 10.4 knots. what is the magnitude of the knots
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