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In the 1950s, an experimental train that had a mass of 2.50 x 104 kg was powered across a level track by a jet engine that creates a thrust of 5.00 x 105 N for a distance of 509 m.
1. Discover the work done on the train.
2. Discover the change in kinetic energy.
3. Find the final speed of the train if there were no friction.
4. Find the final kinetic energy of the train if it started from rest.
Find the quantum uncertainty of the position of a car along its direction of motion. Assume that the mass of the car is 1840 kg and its speed is known with accuracy ?v = 1 km/hour
To weigh a fish, a person hangs a tackle box of mass 3.5 kilogramsand a cooler of mass 5 kilograms from the ends of a uniform rigidpole that is suspended by a rope attached to its center. What is the mass of the fish
A 5.6-kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 3.8 m/s2, find the force exerted by the rope on the bucket
Two particles each have a mass of 6.0 × 10-3 kg. One has a charge of +5.0 × 10-6 C, and the other has a charge of -5.0 × 10-6 C. They are initially held at rest at a distance of 0.80 m apart.
A diathermy machine, used in physiotherapy, generates electro magnetic radiation that gives the effect of "deep heat" when absorbed in tissue. One assigned frequency for diathermy is915.00 MHz. What is the wavelength of this radiation?
you are standing at 9.0 km lightning bolt 1 at x 0km and lightning bolt 2 at x 12.0km. both flashes reach your eye
One of the 120V circuits in your house is protected by a 30Acircuit breaker. This circuit contains a 1200W toaster, an1800W electric skillet, and several 75W lamps. When the toaster and the skillet are both on, how many lights can be turned on be..
A 1200 turn coil of wire that is 3.00 cm in diameter is in a magnetic field that drops from 0.750 T to 0 T in 15.0 ms. What is the induced emf in the coil
Consider a particle of radius s that orbits a solar mass star at 1 au on a circular orbit.Calculate the mass of gas that the particle collides with during one orbit about the star
energy and momentum of electromagnetic wavesphotons.a in a photoelectric experiment lightnbspwith a wavelength of 250
A typical car battery is composed of six, 2.1 V cells arranged in series to have an Emf of 12.6 V. How many electrons pass through the starter motor
a 0.072m x 0.045 m steel beam of length 3.7m is heated from 293kelvin to 372kelvin. what is the new length of the beam?
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