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A 9.0 kg dog takes a nap in a canoe and wakes up to find the canoe has drifted out onto the lake but now is stationary. He walks along the length of the canoe at 0.45 m/s , relative to the water, and the canoe simultaneously moves in the opposite direction at 0.19 m/s. What is the mass of the canoe?
m=_____kg
The lenes of a particular set of binoculars have a coating with index of refraction n=1.38, If the lenses refelct a wavelength of 540nm the most strongly, what is the minium thinkcness of the coating
q1. an engine does 20000 j of work and rejects 6120 j of heat into a cold reservoir whose temperature is 285 k. what
Two charges Q1=+6mC and Q2=+4mC are separated horizontally on a straight line, find the magnitude of the electric force between these charges
In a typical game of squash, two people hit a soft rubber ball at a wall until they are about to drop due to dehydration and exhaustion.
A charge of -4 nC is at the origin and a second charge of 14 nC is at x = 3.00 m. Find out the magnitude and direction of the electric field halfway in between two charges.
If the wire is heated to 40.0°C while the 7.0-V potential difference is maintained, what is the resulting current in the wire
As part of a circuit act, a person drives a motorcycle with constant speed v around the inside of a vertical track of radius r. find the normal force exerted on the motorcycle by the track
In a certain region of space, the electric potential is given by V= 6y. The potential V is given in volts, the coodinate y is given in meters. Find the direction of the electric field
The maximum depth of Lake Superior is approximately 406 m. How much denser is the water at the bottom, compared to the water at the surface of the lake? A. 20% B. 2% C. 0.2% D. 0.02% E. 0.002%
Under favourable circumstances the human eye can detect 1.0e-18 J of electromagnetic energy. How many 600-nm photons does this represent.
Determine the mass of the Sun using the known value for the period of the Earth and its distance from the Sun
The proper length of one spaceship is five times that of another. The two spaceships are traveling in teh same direction, determine the speed of the other faster spaceship
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