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Question1
Imagine drawing two equipotentials in plane of the figure, one passing through point A and one passing through point B. If electric field is 250 N/C, how much does the potential change in going from A to B?
Question2
What is acceleration due to gravity g′ on the space shuttle in orbit - 200 km above the surface of the earth? The gravitational constant is 6.67 × 10^−11 N · m2/kg2, the radius of the Earth is 6.4 × 10^6 m and mass of the Earth is 6 × 10^24 kg.
Question3
A toy train is pushed forward and released at = 3.0 with a speed of 2.5. It rolls at a steady speed for 1.8, and then one wheel begins to stick. The train comes to a stop 6.0 from point at which it were released. What is the train's acceleration after its wheel begins to stick?
19 g of helium gas are placed in a cylinder with a movable piston. The gas is compressed very slowly from a state of ( p1 = 5atm; v1 = 32 x 10^-3m^3) to a state of (p2 = 17atm; v2 = 9 x 10^-3m^3 )
Calculate the angle between the lines (in degrees). Use the angle in the +y direction from the crossing point. (All distances are in meters.)
A circuit consists of a resistor in series with an inductor and an ac generator that supplies a voltage of 115 V. Find the average power delivered in the circuit
A meter stick is found to balance at the 49.7cm mark when placed on the fulcrum. When a 41g mass is attached at the 23cm mark, what is the mass of the meter stick
A proton collides elastically with another proton that is initially at rest. The incoming proton has an initial speed of 4.60 105 m/s, Find the final speeds of the two electrons
In a period of 1.4 s, 5.0 1023 nitrogen molecules strike a wall of area 8.9 cm2. find the pressure exerted on the wall
How far does the object compress the spring if same experiment is performed on the moon, where g = 1.63 m/s2 and air resistance is neglected.
A 3.2-kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. What is the elastic potential energy of the system when the 3.2-kg block is replaced by a 4.1-kg block
An 18.8 cm screwdriver is used to pry open a can of paint. If the axis of rotation is 2.78 cm from the end of the screwdriver blade, what force is applied to the lid
Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 58.0?. Dog A exerts a force of 260N , and dog B exerts a force of 320N
What is the relationship between current and magnetic force, What is the relationship between the length of the wire and the magnetic force
Two clocks are synchronized. One is placed in a race car that drives around a 2.0-km-diameter track at 130 m/s for 24 hours. by how much do the two clocks differ
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