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6) a) A car traveling at a velocity of 1,210 m/s is
6) a) A car traveling at a velocity of 1,210 m/s is uniformly accelerated at –150 m/s2. If the acceleration acts for 8.68 s, what is the final velocity of the car?b) Another car accelerates from a vel… read more
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A tennis ball is thrown vertically upward with an initial
a tennis ball is thrown vertically upward with an initial velocity of 15.00 m/s. What will the ball's velocity be when it returns to its starting point? … read more
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I have a quick assignment would you help me. A ball is
A ball is launched directly upward from the ground with an initial speed of 24 ft/s. There is a wind blowing to the left at a constant acceleration of 12 ft/s2. Determine the angle that the ball hits the ground, as measured from the positive x axis (which points to the right). … read more
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If a ball is dropped (with zero initial velocity) from a
Second opinion] If a ball is dropped (with zero initial velocity) from a height H from the floor, the time (t) it takes for the ball to hit the floor can be calculated by the equation, t2 = 2H/g or eq… read more
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I'm pretty sure I'm on the right track, just stuck at the
I'm pretty sure I'm on the right track, just stuck at the last step. First, I'm assuming that "jump" is used incorrectly and there is actually no initial velocity, and it's more of a stepping off (ini… read more
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A person travels by car from one city to another with different
A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 30.0 min at 50.0 km/h, 14.0 min at 65.0 km/h and 35.0 min at 55.0 km/h, and spen… read more
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1. Alamogordo and Cloudcroft (both towns in New Mexico) are
1. Alamogordo and Cloudcroft (both towns in New Mexico) are 19.5 miles apart via US Hwy 82, a steeply uphill, twisting mountain road. An 18-wheeler makes the trip in 45 minutes. What is the truck's av… read more
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An object is thrown upward with a speed of 24 m/s on the surface
An object is thrown upward with a speed of 24 m/s on the surface of planet X where the acceleration due to gravity is 3.5 m/s2. What is the maximum height reached by the object? How long does it take … read more
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Physics Help (explanations must be shown) __________________________ A
Physics Help: (explanations must be shown) __________________________ A helicopter is rising at 4.7 m/s when a bag is dropped from it. (Assume that the positive direction is upward.) (a) After 2.0 s, … read more
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Post-Doctoral Degree
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a ball thrown vertically upward is caught by the thrower after
a ball thrown vertically upward is caught by the thrower after 2.51s. the acceleration due to gravity is 9.8m/s. find the initial velocity of the ball… read more
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On a distant planet, golf is just as popular as it is on earth.
On a distant planet, golf is just as popular as it is on earth. A golfer tees off and drives the ball 2.9 times as far as he would have on earth, given the same velocities on both planets. The ball is… read more
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A drag racer, starting from rest, speeds up for 402 m with
A drag racer, starting from rest, speeds up for 402 m with an acceleration of +19.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.80 m/s2. How fast is the racer moving … read more
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1. (a) If a freely falling rock were equipped with a ...
1. (a) If a freely falling rock were equipped with a speedometer, by how much would its speed readings increase with each second of fall? (b) Suppose the freely falling rock were dropped near the surf… read more
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What is the position of the puck at the end of that time?
A hockey puck with mass 0.160kg is at rest on the horizontal, frictionless surface of a rink. A player applies a force of 0.250N to the puck, parallel to the surface of the ice, and continues to apply… read more
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Question 1. Michael Jordan, formerly of the Chicago Bulls
Question 1. Michael Jordan, formerly of the Chicago Bulls basketball team, has some fanatic fans. They claim that he is able to jump and remain in the air for two full seconds from launch to landing. … read more
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a ball is thrown up in the air the initial volocity 48feet ...
a ball is thrown up in the air the initial volocity 48feet per second at the same time aball was dropped from a height of 144 feet.do they hit the ground at the same time… read more
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Semi-Retired
Master's Degree
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The instruments attached to a weather balloon have a mass ...
The instruments attached to a weather balloon have a mass of 4.6 kg. The balloon is released and exerts an upward force of 100 N on the instruments. (a) What is the acceleration of the balloon and ins… read more
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A ball is thrown directly upward from the ground. Its ...
A ball is thrown directly upward from the ground. Its height above the ground is given by: H=50t + 5t^2 Where h is measured in meters and t is measured in seconds. Determine: a) its initial velocity b… read more
J
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