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1. A plane traveling at 18.5 m/s is brought to rest in a distance of 135 meters. To the nearest hundredth of a m/s2 what is the magnitude of its acceleration?
2. If the mass of the plane in the previous problem is 1.51 x 105 kg, to the nearest newton what is the magnitude of the retarding force?
In 1971, Apollo 14 astronaut Alan Shepard hit two golf balls while on the Moon. The first one rolled 40 yards into a nearby crater, Is the second ball still on the moon
An electron and a positron (an anti electron) make a head-on collision, each moving at v = 0.9999c. What is the kinetic energy of each of the muons
A boat is to cross a river on a course directed 20.0° north of east in 10 minutes from point A to point B. The distance from point A to point B is 815m. If the river flows at a speed of 3.0 km/hr, at what angle upstream must the boat be headed,..
A system of 1506 particles, each ofwhich is either an electron or a proton, has a net charge of-4.704 10-17 C. What is the mass of this system
A 1 165.0 kg car traveling initially with a speed of 25.000 m/s in an easterly direction crashes into the back of a 9 100.0 kg truck moving in the same direction at 20.000 m/s. The velocity of the car right after the collision is 18.000 m/s to the..
What are the dissimilar death scenarios for a black hole? I know they can evaporate during Hawking radiation - but is there any other way? What if you just kept shovelling more and more mass and energy into the black hole?
A yo-yo has a mass of 0.604 kilogram, a moment of inertia of 0.01 kgm2, and a string that is 0.592 meter in length. find its angular velocity just before it started up
Two identical particles of mass m are trapped by an external one dimensional harmonic oscillator potential, but do not interact with each other. The energy levels for a single particle in the potential are En = (n + 1/2)(h_bar)(ω) for n = 0,1,2,3,..
Dave needs to get groceries from the store, which is a distance of D=2.8km east of his house, What is the direction of Dave's displacement for the entire trip
You are pulling your friend in a sled in a straight line to the right at a constant speed. How far would the sled/ person travel in this time
Using knowledge of volume of solid integration, explain how to find the volume of an egg. Construct a mock integral or integrals (use a and b for limits and not actual values) to show how you would set up the integration to find the volume for any eg..
A 2000-kg car accelerates uniformly from rest to 120 km/hr in 10 seconds, then maintains constant speed. What is the linear acceleration of the car
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