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Can a person, in principle, travel from Earth to the galactic center (which is about 2.30×104 lightyears distant) in a normal lifetime? Explain, using either time-dilation or length contraction arguments. If they want to make the trip in 28 y what distance would the person travelling at nearly the speed of light measure (in light years, do not enter a unit)
The famous horse & cart physics scenario is explained. This scenario is used to describe why many people have a common misconception about what Newton’s 3rd Law says & does not say.
A particle of mass M moves in one dimension along the positive x axis, under the influence of two forces. The first force is a constant force, with magnitude B and direction toward the origin. The second force is an inverse square law, with magnitude..
A spherical raindrop of mass 0.00942 g and radius 1.31 mm falls from a cloud that is at a height of 1115 m above the ground. What would be the raindrop's speed just before landing on the ground if there were no drag force
A bicycle wheel with a radius of 38 cm is given an angular acceleration of 2.80 rad/s2 by applying a force of 0.25 N on the edge of the wheel. What is the wheel's moment of inertia?
question1on vacation your 1350 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 1.90 ms2.a
A damped mass-spring system oscillates at 265 -Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 6.1 cm and the energy of the oscillating system is then 61.00 J.
A skier wears a goose down jacket of thickness 3.75cm and total surface area of 1.25m^2. determine the temperature at the surface of the skin
A particle moving at 9.1 m/s in the positive x direction is given an acceleration of 3.4 m/s2 in the positive y direction for 2.4 s. Find the final speed of the particle
In a head on collision, a car stops in .10 seconds from a speed of 14 meters per second. The driver has a mass of 70 kg, and is, fortunately, tightly strapped into his seat. What force is applied to driver by his seat belt during that fraction of ..
A luggage carousel at an airport has the form of a section of a large cone, steadily rotating about its vertical axis, Calculate the force of static friction exerted by the carousel on the bag
In a system designed to measure cadmium stored in liver, a person’s liver receives a dose of 125 μGy from fast neutrons and 20 μGy from γ-rays. In addition, 1 % of these doses goes to the whole body.
Discover the horizontal and vertical displacement
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