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Two 1.9kg masses are 1.5m apart (center to center) on a frictionless table. Each has + 9.3?C of charge.
What is the magnitude of the electric force on one of the masses?
What is the initial acceleration of the mass if it is released and allowed to move?
A laptop computer sits on the horizontal surface of the seat of a car moving at 8.0 m/s. The driver starts slowing down to stop. Find the minimum stopping distance
A diver springs upward from a three-meter board. At the instant shecontacts the water her speed is 8.90m/s, How much time does she spend in the air
If a red laser light (He-Ne Laser) with a wavelength of 633 nm and a frequency of 4.739 *10^14 Hz, at what angle will the first order diffrection angle be
Many people mistakenly believe that the astronauts that orbit Earth are "above gravity." Calculate g for space shuttle territory 150 km above Earth's surface. suppose Earth's mass is 6.0 1024 kg, and its radius is 6.38 106 m (6380 km). Your answer..
A 47.60 g golf ball is driven from the tee with an initial speed of 56.0 m/s and rises to a height of 28.4 m. (a) avoid air resistance and determines the kinetic energy of ball at its highest point. (b) What is its speed while it is 8.02m below it..
Ice of mass 11.0 kg at 0.00° C is placed in an ice chest. The ice chest has 3.10 cm thick walls of thermal conductivity 1.00 x 10^-5 kcal/s · m · C°, How much heat must be absorbed by the ice before it melts
Ice at -10.0 °C and steam at 118 °C are brought together at atmospheric pressure in a perfectly insulated container. find the ratio of the mass of steam to the mass of ice
When monochromatic light shines perpendicularly on a soap film (n = 1.33) with air on each side, What is the vacuum wavelength of the light
In 1581, when Galileo was 17 years old, he noticed one morning at the Cathedral in Pisa (just next door to the leaning tower) that after the chandeliers were lit several of them oscillated back and forth with different amplitudes, How long was the..
The quartz tube is actually 921mm long × 15mm diameter ... use the tube circumference and length to: estimate the light's maximum Electric Field , at the outside of the tube
How long must a 0.60-mm-diameter copper wire be to carrya 0.50 {\rm A} current when connectedto the terminals of a 1.5 {\rm V} flashligh tbattery? What is the current if the wire is half the length inpart A?
One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 1.69 km. What is the distance they travel
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