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A bumper car with mass m1 = 109.0 kg is moving to the right with a velocity of v1 = 4.9 m/s. A second bumper car with mass m2 = 84.0 kg is moving to the left with a velocity of v2 = -3.6 m/s. The two cars have an elastic collision. Assume the surface is frictionless.1) What is the velocity of the center of mass of the system?2) What is the initial velocity of car 1 in the center-of-mass reference frame?
Calculate P necessary to just start opening the 2 m wide gate.
On a warm summer day (29?C), it takes 4.50s for an echo to return from a cliff across a lake. What is the temperature on the winter day
The mechanical advantage of a hydraulic jack is 450. Find the weight of the heaviest automobile that can be lifted by an applied force of 60.0 N
Two charges q1 = ?3.20 nC and q2 = +8.90 nC are at a distance of 1.20 µm from each other, What is the kinetic energy of the charge q2 when it is 0.340 µm from q1
A 5.50kg mass traveling at 3.5 m/s on a fricktionless tabled suddenly collides, What will be the maximum compression of the spring after the composite collides into it
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 53.9 meters per second squared. The acceleration period lasts for time 9.00s until the fuel is exhausted. After that, the rocket is in free..
A string is wrapped several times around the rim of a small hoop with radius 8.00 cm and mass 0.180 kg. calculate the angular speed of the rotating hoop
A uniform thin rod of length 0.9 m and mass 2.6 kg can rotate in a horizontal plane about a vertical axis through its center. find the magnitude of the bullet's velocity just before the impact
If the gas pressure and volume both double, what's the change in internal energy, find the internal energy of 1mol of oxygen at 291K and 1.0 atm
The graph of two cars that collide shows that they intersect at a point 5.5m on a distance/time graph. The first car has a velocity of 0.39m/s. what does the steepness of the slope indicate
A 8.00-cm-long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field. How big is the pulling force
A wave source generates circular waves that spread out from it on the surface of a pond. The wavelength of these waves is 6.00 cm. (a) At some instant a crest is passing point A.
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