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Q. A rocket rises vertically, from rest, with an acceleration of 3.0 m/s2 until it runs out of fuel at an altitude of 1100 m. After this point, its acceleration is that of gravity, downward. What is the velocity of the rocket when it runs out of fuel? (Assume up is positive.)
Q. Consider a container of 2.0 grams of hydrogen (one gram mole). Suppose you removed all the electrons and moved them to the other side of the Earth (Earth diameter 12740. km). What is the attractive force between the protons here and the electrons at the other side of the Earth?
what the electrostatic force acts on the proton.
Planet Z is 12,000 km in diameter. The acceleration due to gravity on Planet Z is 7.0 m/s2.
An isolated copper sphere of radius 4.85cm, at first uncharged, is illuminated by ultraviolet light of wavelength 244nm. The work function for copper is 4.70 eV. What charge does the photoelectric effect induce on sphere.
River Pascal with a volume flow rate of 3.3×10^5 joins with River Archimedes, that carries 1.09×106 , to form the Bernoulli River. The Bernoulli River is 120 wide and 20 deep.
Find the magnitude and direction of the acceleration. A 2.60 kg steel ball strikes a wall with a speed of 10.0 m/s at an angle of 60.0° with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.19..
Find the magnitude of the acceration of each block. what is the magnitude of the average force exerted on the ball by the wall.
What is the greatest possible distance from the wall
A motorist drives south at 22 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 30 m/s for 1.00 min. For this 6.40 min trip, find out the following values.
A 5 uF capacitor is initially charged to a potential of 16 V. It is then connected in series with a 3.75 mH inductor.
King Arthur's knights fire cannon from the top of the castle wall. The cannonball is fired at a speed of 60 m/s and an angle of 33. A cannonball that was accidentally dropped from the top of the castle wall hit the moat below in 1.80s.
Calculate the volume charge density of the atmosphere
What is the magnitude of displacement
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