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A space traveler weighs 631 N on Earth. What will the traveler weigh on another planet whose radius is 2 times that of earth and whose mass is 3 times that of earth?
How many moles of gas are in a balloon with a volume of 5.07 liters at a temperature of 298 K and a pressure of 1.11 atm
An olive is at the bottom of a glass of alcohol (n = 1.36), 6.51 cm beneath the surface. what is the apparent depth d' of the olive
An underdamped oscillator, where gamma = omega/3, is initially at rest and is subjected to a driving force given by F(t)= Asin(omega*t)+Bsin(3*omega*t),
A 0.534-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards. Find the momentum of the electron
suppose 20m long steel rods are used in 20m long slabs. calculate the increase of length of a slab due to this speeding 18 wheeler on this hot day
While surveying a cave, a spelunker follows a passage 190{\rm m} straight west, find the magnitude and direction of the fourth displacement
A 48 kg skier skis directly down a frictionless slope angled at 13° to the horizontal. Assume the skier moves in the negative direction of an x axis along the slope. A wind force with component Fx acts on the skier.
If you move towards a pipe at a speed of 3.3m/s, what frequency will you hear from this organ pipe? speed of sound is 330m/s
One of our closest stellar neighbours, Vega, is 5.8 light years away. What is the intensity of its signal at Vega
A researcher notices that the frequency of a note is emitted by a car horn appears to drop from 284 Hz to 266 Hz as the car passes him. What value does he obtain for the speed of the car
A photon of wavelength 0.87671 nm strikes a free electron that is initially at rest. What is the speed of the recoil electron after the collision
Two identical pucks are on an air table. Puck A has an initial velocity of 2.5 m/s in the positive x-direction. What is the speed and direction of puck B after the collision
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