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A water pipe narrows from a radius of r1 = 4.33 cm to a radius of r2 = 3.39 cm. If the speed of the water in the wider part of the pipe is 2.59 m/s, what is the speed of the water in the narrower part?
A 63-kg skier is going down a slope oriented 31° above the horizontal. Determine the pressure that each ski exerts on the snow
A 1,200 kg car going 25 m/s is brought to stop using its brakes. Let's assume that a total of approximately 20 kg of iron in the brakes, What was the car's original kinetic energy
A population of 500,000 around a nuclear facility receives an average wholebody dose of 0.5 rad as a result of an accidental release of radionuclides. Estimate the collective gonad dose received
What is the tangential acceleration of a bug on the rim of a 7 in. diameter disk if the disk moves from rest to an angular speed of 76 revolutions per minute in 4 s.
a 0.40kg basketball is thrown horizontally against a board with a velocity of 20m/sec. If the ball rebounds with a speed of 15m/sec. What is the impulse of the ball
An aircraft weighing 902 N is accelerated at 10.8 m/s/s for 5 seconds, at which time the aircraft launches. What is the force required to launch the aircraft
A satellite is placed in orbit 9.00x10^5 m above the surface of the planet Jupiter. Find the orbital speed of the satellite
A lens of focal length 15.0 cm is used to create an image of the Full Moon. What is diameter of the image? The Moon's radius and average distance from Earth are 1.74× 106m and 3.85× 108 m, respectively
You are arguing over a cell phone while trailing an unmarked police car by 26.0 m; both your car and the police car are traveling at 120 km/h. what is your speed (in km/h) when you hit the police car
A 11.2 kg block of metal measuring 4 cm x 2 cm x 3 cm is suspended by a spring scale and submerged in water. What is the reading on the scale
The scalar product of vectors and is +51.0. Vector has magnitude 9.00 and direction 28.0 west of south. If vector has direction 36.0 south of east, what is the magnitude of.
the space shuttle is in a 230 mile high orbit. what are the shuttles orbital period in minutes and its speed.
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