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An electron moves through an electric field, and its speed drops from 2200m/s to 1000m/s
a) what's the potential difference between the points at which the speed was measured?
What is the greatest possible distance from the wall
a drag racer starts her car from rest and accelerates at 9.2 ms2 for the entire distance of 631 m.how long did it take
In static equilibrium a spring is stretched 0.25 m by a hanging mass. If the system is initially moved up to the unstretched position and released with zero velocity, determine position of the mass (in m) after 4.2s. Take the equilibrium position ..
Suppose that a 1800 kg car passes over a bump in a roadway that follows the arc of a circle of radius 20.8 m, What force does the road exert on the car as the car passes the highest point of the bump if the car travels at 40.0 km/h
The angular momentum of a flywheel having a rotational inertia of 0.647 kg·m2 about its central axis decreases from 6.30 to 0.880 kg·m2/s in 3.00 s. How much work is done on the wheel
For a safe re-entry into the Earth's atmosphere, the pilots of a space capsule must reduce their speed from 2.6 × 104 m/s to 1.1 × 104 m/s. For how long must they fire their engine
Three resistors having resistances of R1 = 1.53?, R2 = 2.37?, and R3 = 4.73?respectively, are connected in parallel to a 28.3 V battery that has negligible internal resistance. Find the equivalent resistance of the combination
Calculate the centripetal force exerted on the Earth by the Sun. Assume that the period of revolution for the Earth is 365.25 days, the average distance is (1.5 x 10^24)kg
We can use 30kJ of work from a heavy-duty pushing robot that can apply different constant forces. Draw a free-body diagram for the freigh
The average distance of the planet Mercury from the sun is 0.39 times the average distance of the earth from the sun
Starting from rest, a speedboat reaches a speed of 2.30 m/s in 1.2 s. What is the boat's speed after an additional 2.50 s has elapsed, assuming the boat's acceleration remains the same.
A lava bomb is a missile composed of cooling, practicallysolid lava. You are a geologist, watching a volcano launch a lava bomb straight upward. find the Initial Speed at which the lava bomb got launched
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