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Q. Two runners of mass 70kg and 60kg, respectively, have a total linear momentum of 350 kg•m/s. The heavier runner is running at 2.0 m/s. Determine the likely speeds of the lighter runner.
Q. A car is driven 145.00 km west and after that 65 km southwest. What is the displacement of car from the point of origin (magnitude and direction)?
A flywheel in a motor is spinning at 580 {rm rpm} when a power failure suddenly occurs. The flywheel has mass 40 {rm kg} and diameter 75 {rm cm}.
If you weigh 690 {rm N} on the earth, what would be your weight on the surface of a neutron star that has same mass as our sun and a diameter of 21.0 {rm km}.
Suppose the speed of light in a vacuum were only 25.5 mi/h. Find the length of the bicycle being ridden at a speed of 20.0 mi/h as measured by an observer sitting on the park bench, given that its proper length is 1.59 m.
Suppose you do 457 J of work on 1.18 moles of ideal gas in a perfectly insulated container. By how much does the internal energy of this gas change.
A projectile is fired at an upward angle of 45° from the top of a 212 m cliff with a speed of 161 m/s. What would be its speed while it strikes the ground below.
What is the distance between the particles at this time? The Coulomb constant is 8.95755 × 109 N • m2/C2, the elemental charge is 1.6721 × 10-19 C, and the acceleration due to gravity is 9.8 m/s2.
What is the linear speed of the phonograph needle
A 1200 kg car carrying four 84 kg people travels over a rough washboard dirt road with corrugations 4m apart which causes the car to bounce on its spring suspension.
Though slow on land, the leatherback turtle holds record for the fastest water speed of any reptile: 9.78 m/s. It is also among the largest of reptiles. Assume the largest leatherback yet discovered were to swim at the top leatherback speed. If its k..
The coefficient of kinetic friction for wood sliding on wood is 0.20. What is the final speed of the bullet
How much work done against force of gravity
If you place a 0.0001-C charge halfway between the terminals of a common 9-v battery, 5 mm apart, what force will that charge experience.
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