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A 1.5m -long barbell has a 22kg weight on its left end and a 35kg weight on its right end.
a) If you ignore the weight of the bar itself, how far from the left end of the barbell is the center of gravity?
b) Where is the center of gravity if the 7.0kg mass of the barbell itself is taken into account?
How does this number of calories compare with the number of calories required to vary the same gram of 100 degree C boiling water to 100 degree C steam.
In a section of horizontal pipe with a diameter of 3.0 cm, the pressure is 100 kPa and water is flowing with a speed of 1.5 m/s. What is the pressure in the narrower region
In a Compton scattering experiment, the scattered electron is observed to move in the same direction, what is the scattering angle of the photon
What is magnitude of the Coulomb force
the second person is initially at rest. Illustrate what are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and the ice.
Released from rest at the same height, a can of frozen juice rolls to the bottom of the same hill. What is the translational speed of the frozen juice can while it reaches bottom.
A certain projectile is launched with an initial speed v0. At its highest point its speed is v0 / 4. What was the launch angle
You connect five identical resistors in series to a battery whose EMF is 12.0 V and whose internal resistance is negligible. obtain the potential difference across each resistor
A narrow beam of light with wavelengths from 450 nm to 700 nm is incident perpendicular to one face of a 40.00 degreee prism made of crown glass
A water balloon is launched at a building 24 m away with an initial velocity of 18 m/s at an angle of 50 degrees above horizontal, At what height will balloon strike building
A recording engineer works in a soundproofed room that is 50.0 dB quieter than the outside. what is the intensity outside
At a distance r away from a point charge q, the electric potential is V = 600 V and the magnitude of the electric field is E = 200 N/C
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