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(a) Light travels at 3 x 108 m/s, and it takes about 8 min for light from the sun to travel to the earth. Based on this, find the distance from the sun to the earth.
(b)A particle moves from x0 = 40 cm to x =-40 cm in 4 s. Find the average velocity of the particle during this time interval. (c)A particle moves from x = 40 cm to x = 50 cm in 5 s in one location of its path. In another location it was found that the particle moved from x = 500 cm to x = 520 cm in 2 s. Is the particle accelerating? If so, find the acceleration if the particle took 4 s to get from first location to the next?
(d)The position of a particle is given by x = C2t2, where C is a constant and t is the time-variable. Find the velocity and acceleration of the particle.
a baseball m 141 g approaches a bat horizontally at a speed of 39.2 ms 88 mih and is hit straight back at a speed of
Two parallel square metal plates (side length: 13 cm) are separated by a dielectric material with a dielectric constant 3.9 and a thickness of 2.4 mm. The plates are connected to a 11 V power source and allowed to fully charge.
The electric potential at a position located a distance of 19.5 mm from a positive point charge of 7.70×10-9C, Calculate the value of the second charge
A 15 centimeter ruler is located 75 centimeter from a converging lens with a focal length of 60 centimeter. Obtain where is the image located and how big is it
questiona professional race-car driver buys a car which can accelerate at 89.0 ms2. the racer decides to race beside
A 4.0 kg cylinder of solid iron is supported by a string while submerged in water. What is the tension in the string
Two gerbils run in place with a linear speed of 0.55 on an exercise wheel that is shaped like a hoop. Find the angular momentum of the system
q1. for years marine scientists were mystified by sound waves picked up by underwater microphones in the pacific ocean.
A capacitor is consists of two short sections of parallel wires in air. One wire is found to be of the voltage of 56 V, What is the capacitance of the two wires
Along a straight road through town, there are three speed-limit signs. They occur in the following order: 54 , 35 , and 18 mi/h, with the 35 -mi/h sign located midway between the other two.
a solid sphere of brass (bulk modulus of 1.4x10^11 N/m^2) with a diameter of 2.3 m is thrown into the ocean. by how much does the diameter of the sphere
How many lines per centimeter must a grating have if there is to be nosecond-orderspectrum for any visible wavelength (400–750 nm)? (State the maximum number of lines per centimeter.)
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