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A shopper pushes a cart with a horizontal force 12.8N. The cart has a mass of 29.9kg How far will it move in 2.8s, starting from rest. (Ignore Friction).
the 1d wave equation for p-waves isfracpartial2 u1partial t2alpha2fracpartial2 u1partial x12 where alpha is the p-wave
You and Maria each own identical spaceships. As you fly past Maria, you measure her ship to be 85m long and your own ship to be 100 m long. How fast is Maria moving relative to you
The refracting telescope at the Yerkes Observatory has a 1.00-m diameter objective lens of focal length 20.0 m. Assume it is used with an eyepiece of focal length 1.90 cm. (a) Determine the magnification of Mars as seen through this telescope.
Each of the space shuttle's main engines is fed liquid hydrogen by a high-pressure pump. Turbine blades inside the pump rotate at 469 rev/s. A point on one of the blades traces out a circle with a radius of 0.639 m as the blade rotates. What is the m..
Suppose there are two blackbodies with the same size and shape. Which of the black bodies emit more power through radiation and how much more power
A heat engine is composed of of a monatomic ideal gas which runs in the following cycle: At point A the pressure is 2.6 atm, What is the efficiency of this heat engine
A worker pushes horizontally on a large crate with a force of 185 N, and the crate is moved 4.4 m. How much work was done
Find the average force if the car is stopped in a collision that brings the driver's seat to rest in 0.100 s, assuming the driver is restrained by a seat belt
The top of a swimming pool is at ground level. If the pool is3.00 m deep, how far below ground leveldoes the bottom of the pool appear to be located for the following conditions? The pool is filled halfway with water
Two trains on separate tracks move toward each other. Train 1 has a speed of 141 km/h; train 2 a speed of 75.0 km/h. What is the frequency heard by the engineer on train 1
An experiment is performed in deep space with two uniform spheres, one with mass 30.0 kg and the other with mass 106.0 kg. Find the magnitude of the relative velocity with which one sphere is approaching to the other
Relative to the ground, a car has a velocity of 14.5 m/s, directed due north. Relative to this car, a truck has a velocity of 24.5 m/s, directed 52.0° north of east. What is the magnitude of the truck's velocity relative to the ground?
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