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The vector position of a 3.50g particle moving in the xy planevaries in the time according to r1 = (3i + 3j)t +2jt2. At the same time, the vector position of a 5.50gparticle varies as r2 = 3i - 2it2 - 6jt,where t is in seconds and r is in cm. At t = 2.50s, determine
a.) the vector position of the center of mass
b.) the linear momentum of the system
c.) the velocity of the center of mass
d.) the acceleration of the center of mass
e.) the net force exerted on the two particle system.
The radius of Earth is about 6.38 multiplied by 10^3 km. A 7.02 multiplied by 10^3 N spacecraft travels away from Earth. What is the weight of spacecraft at the following distances from Earth's surface: 6.38 times 10^3 km and 1.4 times 10^4 km.
250mL of water at 20.0 ?C is placed in the freezer compartment of a refrigerator with a coefficient of performance of 6.00. How much heat energy is exhausted into the room
The nucleus in an iron atom has a radius of about 4.0 X 10-15 m and contains 26 protons, What is the magnitude of the gravitational force between those same two protons
A rock climber throws a small first aid kit to another climber who is higher up the mountain. FIND the vertical height difference between the two climbers
What is the average force felt by a 0.06 kg tennis ball if it strikes the racket at a speed of 30m/s and leaves the racket with a speed of 50m/s in the opposite direction
A boy 10.0 m above the ground in a tree throws a ball for his dog, who is standing right below the tree and starts running the instant the ball is thrown. How far from the tree will the dog catch the ball
A proton and an alpha particle are released from rest when they are 0.225nm {\rm nm} apart. Find the maximum speed of proton
A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. What is the flux that passes through the circular loop
In a game of pool, a cue ball with an initial velocity of 1.25 m/s directed to the right (along the +x-axis) collides with the five ball, Find the cue ball's final velocity
an electron moving horizontally at a velocity of 2.3x10^7 m/s enters a region with an electric field of magnitude E=52600 V/m in the same direction. How far in meters will the electron travel before it turns around
Rumor has it that a photographic camera on a spy satellite can read the license plate of an automobile on the ground. what must be the diameter of the aperture of the camera
A solenoid 30 cm long has 2900 turns of wire and carries a current of 5.7 A. Find the magnetic field at the common center
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