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Four objects are situated along the y axis as follows: a 2.73 kg object is at +2.37 m, a 1.86 kg object is at +3.50 m, a 2.46 kg object is at the origin, and a 3.68 kg object is at -0.610 m. Where is the center of gravity of this system?
If the Earth were to suddenly stop revolving around the Sun the gravitational force that the Sun exerts on the Earth would cause the Earth to "fall" directly into the Sun
The spring shown is compressed 50 cm and used to launch a 100-kg physics student. The track is frictionless until it starts up the incline. How far up the incline does the student go
A curve of radius 52.6 m is banked so that a car of mass 1.6 Mg traveling with uniform speed 55 km/hr can round the curve without relying on friction to keep it from slipping on the surface
An electron and a proton are initially very far apart (effectively an infinite distance apart). which is the change in the electric potential energy
Light with a wavelength of ? = 590 nm is incident on a diffraction grating. A screen is placed at a distance of L = 2.45 m from the grating. The grating has 180 lines per millimeter. What is the distance between the m = 4 maximum and the central.
a 20 kg satellite has a circular orbit with a period of 2.7 h and a radius of 8.1 x 106 m around a planet of unknown
A water collector on a farm roof 5m high from the ground overflows with rain through a large circular are of radius 1.2m. The water then falls through a pipe and into a tub near the ground; it exits the pipe through a .3m radius spout located .5m fro..
Starting in the spring, fruit begins to grow on the outer end of a branch on a pear tree. Define how the center of gravity of the pear growing branch shifts all through the course of the summer.
question1a person doing a chin-up weighs 725 n disregarding the weight of the arms. throughout the first 20.0 cm of the
question the frequency of a light wave is the same when the light travels in two different media. assuming that the
The wavelength of visible light varies from 0.40 ?m to 0.70 ?m as the color of the light changes from violet to red. Calculate the energy of a photon whose wavelength is 0.43 ?m
Raindrops fall 1830 m from a cloud to the ground. If they were not slowed by air resistance, how fast would the drops be moving when they struck the ground
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