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Q1. At a distance r1 from a point charge, magnitude of the electric field created by the charge is 296 N/C. At a distance r2 from the charge, the field has a magnitude of 168 N/C. Find the ratior2/r1.
Q2. The drawing shows a horizontal beam of light that is incident on a prism made from ice. The base of prism is also horizontal. The prism (n = 1.31) is surrounded by oil whose index of refraction is 1.48. Resolve the angle that the exiting light makes with the normal to the right face of the prism.
A "door closer" is attached to the door and the top of the door frame.When the door is open and at rest, the door closer exerts a torque of 4.8 {rm N} cdot {rm m}. What is the least force that you need to apply to the door to hold it open.
A converging lens (f = 13.0 cm) is held 6.20 cm in front of a newspaper, the print size of which has a height of 2.20mm. Find (a) image distance (in cm) and (b) height (in mm) of the magnified print.
Assume that it takes 2.30 kg of oxygen to burn 1.00 kg of coal. (The actual amount varies with the type of the coal). What is the total mass of the reagents used in the combustion all through the 30 days.
A block of weight W can slide on a horizontal surface. A force of W/n1 is applied to the right that causes the block to accelerate with acceleration equal to g/n2. g is the acceleration by reason of gravity. If the coefficient of kinetic friction is ..
A stone takes 0.28s to travel past a window 2.2m tall. From what height above top of the window did the stone fall?
What is the magnitude
Compute magnitude of the average velocity
A 2500-kg sport utility vehicle travelling at 92 km/h can be stopped in 0.25 s if it hits a concrete wall. Assume a 60 kg person was in the car that hit this wall. The velocity of the person equals that of the car both before and after the crash, and..
In NYU's Diffraction and interference lab for general physics 2, what are the widths given on the slide with the double slits. On the lab manual it says they were given on the slide.
An average temperature of the rest of the universe
Compute the average acceleration of car and lizard and the final velocity of a Ferrari.
First work out the momentum before and after hitting the table. Don't forget the gravitational force.
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