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A 3.00kg block on a horizontal floor is attached to a horizontal spring that is initially compressed 0.0400m . The spring has force constant 895N/m . The coefficient of kinetic friction between the floor and the block is 0.44 . The block and spring are released from rest and the block slides along the floor. Part A What is the speed of the block when it has moved a distance of 0.0200m from its initial position? (At this point the spring is compressed 0.0200m .) Express your answer with the appropriate units. v =
There are some people who believe that Earth has a twin that orbits directly opposite the sun with exactly the same orbital elements and in the saem direction and thus unseen from Earth. The two planets are exactly 180 degrees opposed when they oc..
A gymnast of mass 59 hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and presume that the rope does not stretch. Utilize the value for the acceleration of gravity.
A point charge is accelerated from rest through a potential difference of 150 V and gains a speed v initial. What speed (in terms of v initial ) would it gain if it were accelerated through 280 V instead
A star is about 6.00 light years from Earth. How long would the trip take according to an Earth based observer
Janet has a 40% interest in the S corporation. All expenses that reduce DPGR are from wages, and all wages paid relate to DPGR. Explain how much QPAI and wages are allocated to Janet?
A stone is dropped from a cliff; 2.47 s later another stone is thrown downward with an initial speed of 35 m/s. Find the height of the cliff
A proton is released from rest at x = -3.00 cm in a uniform electric field of magnitude 1620 N/C, What is the change in potential energy when the proton reaches x = 5.00 cm
A 10 g bullet traveling at 360m/s strikes a 8.0kg , 0.90-m-wide door at the edge opposite the hinge. What is the angular velocity of the door just after impact
An air-hockey pucks floats across the table and bumps into a second puck, initially at rest. The first puck - mass 0.0250 kg - is moving initially due east at 5.50 m/s. Find the speeds of both pucks after the bump
A 111g Frisbee is 25cm in diameter and has half its mass spread uniformly in the disk and the other half concentrated in the rim. What is the Frisbee's rotational inertia
You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, where the acceleration due to gravity is 3.71 meters per second per second. Find the net downward force on the tank's flat bottom
Estimate the number of drops of water in all the oceans on earth. You will need to use the facts that the oceans cover about 2/3 of the earth's surface and are about 4000 m deep on average
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