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A vehicle whose initial speed is 30 m/s slows uniformly to 10 m/s in 5 sec.
a) Evaluate the acceleration of the vehicle.
b) Evaluate the distance it travels in the 3rd second (t=2s to t=3s).
A rock is thrown vertically upward with a speed of 15.0m/s from the roof of a building that is 40.0m above the ground, What is the speed of the rock just before it strikes the ground
A hypothetical charged particle passes without deflection through crossed electric and magnetic fields of strengths 6940 V/m and 0.125 T, respectively. What is the particle's charge-to-mass ratio
A neutron at rest decays into a proton and a electron. How much Kinetic energy (in MeV) is shared by the electron and the proton?
An arrow has a velocity of 45.0 m/s when it reaches a straw target. estimate its average acceleration while coming to rest
The chin-up is one exercise that can be used to strengthen the biceps muscle. How much work can the biceps muscles (one in each arm) perform in a single contraction
What is the gauge pressure of the air in the tires when its temperature rises to 27 .00C and its volume increases to 1.67 x 10-2 m3? Assume atmospheric pressure is 1.01 x 105 Pa.
A converging lens has a focal length of f = 27 cm. An object is placed 37 cm from the lens. Find the size of the image
A generator rotates at 95Hz in a magnetic field of 0.025T . It has 650 turns and produces an rms voltage of 180V, What is the area of each turn of the coil
A 200 lbs guy wants to slide down a plastic slide 24 ft long and on a 30 degree angle, after that the slide goes horizontally for 6 feet. Taking friction into consideration, how fast would he be going down the slide.
When a lightning bolt strikes a lightning rod, its current istypically conducted to the ground by a ground rod. When the currentin the rod exceeds 20.0 kA, it can no longer be confined bythe rod and will arc laterally through the air to the ground..
A wire has a length of 6.75 x 10-2 m and is used tomake a circular coil of one turn. There is a current of 2.94 A inthe wire. In the presence of a 2.28-T magnetic field, what is the maximum torque that this coil can experience?
Water is pumped into a storage tank from a welldelivering 23.0 gallons of waterin 35.0 seconds through a pipeof 1.00 in.2 cross-sectional area. What is theaverage velocity of the water in the pipe as the water is pumpedfrom the well?
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