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Two charges are placed on the x axis. One of the charges (q1 = +5.44C) is at x1 = +3.00 cm and the other (q2 = -27.7C) is at x2 = +9.00 cm. Find the net electric field (magnitude and direction given as a plus or minus sign) at (a) x = 0 cm and (b) x = +6.00 cm.
Medical technicians use small centrifuges to isolate blood cells. How far are the test tubes from the rotation axis
what are the two steps for simplifying radicals? can either step be deleted? if you could add a step that might make it
A room of volume V contains air having equivalent molar mass M (in g/mol). If the temperature of the room is lowered from T1 to T2, determine what mass of air will enter the room
A goldfish lives in a 50-cm-diameter spherical fish bowl. The fish sees a cat watching it. how far from the edge does the fish see it as being
Two point charges Q1, and Q2 are place exactly on the x axis at -x1. A second particle Q2 is placed at +x2 on the positive x axis. What is the total E field at the origin
A Van de Graaff generator is utilized to demonstrate the effects of high potential. The device has a radius of 29.5cm and stands in air. What is its maximum potential? How much charge does the dome hold at its maximum potential?
A ball of mass 0.40 kg moving at 180 m/s east strikes a second ball, initially at rest of mass 0.500 kg. What is the final velocity of the second ball
A force of 210N is applied to a 50.0 kg box. The force is directed 20 degree above the horizontal. The coefficient of kinetic friction between the box and the floor is 0.25 and the box moves 3.00m across the horizontal floor. A) How much work is done..
A basketball (M = 0.6 kg, R = 12.1 cm) with a tennis ball (m = 0.06 kg, r = 3.25 cm) directly on top of it is dropped from a height of 1 m. Find the speed of the basketball after its collision with the ground
A roller coaster reaches the top of the steepest hill with a speed of 6.2 km/h. It then descends the hill, which is at an average angle of 40o and is 60 m long. What will its speed be when it reaches the bottom
Suppose you are planning a trip in which a spacecraft is to travel at a constant velocity for exactly eight months, as measured by a clock on board the spacecraft, and then return home at the same speed.
A child is trying to throw a ball over a fence. She gives the ball an initial speed of 8.0 m/s at an angle of 40° above the horizontal. How far is the child from the fence
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