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Water skiers often ride to one side of the center line of a boat, as shown in the figure . In this case, the ski boat is traveling at 15 m/s and the tension in the rope is 79 N .
If the boat does 3600 J of work on the skier in 53.7 m, what is the angle between the tow rope and the center line of the boat?
the masses of the earth and moon are 5.98 x 1024 and 7.35 x 1022 kg respectively. identical amounts of charge are
A neon atom (m = 20.0 u) makes a perfectly elastic collision with another atom at rest. What is the mass of the unknown atom
q1. on a very muddy football field a 110kg linebacker tackles an 85kg halfback. immediately before the collision
an obnoxious brat assigns his 0.0227-kilogram pet mouse mickey the role of stunt mouse by stuffing him into a spring
A 3.25-kg object is moving in a plane, with its x and y coordinates given by x = 2t2 ? 4 and y = 4t3 + 4, Find the magnitude of the net force acting on this object
Estimate the average force exerted by a shot-putter on a 7.4 kg shot if the shot is moved through a distance of 2.5m and is released with a speed of 11m/s
A 40g block of ice is cooled to -78 deg celcius and is then added to 560g of water in an 80g copper calorimeter at a temperature of 25 degrees celcius, determine how much ice is left
An electric motor is used to lift an elevator and its load to aheight of 20m. at which rate is the energy supplied to the motor
A beam of polarized light is incident upon the first of two polarizing sheets with its polarization direction making an angle of 45° with respect to the polarizing direction of the first sheet. By what angle do the polarizing directions of the two ..
A parallel-plate capacitor in air has a plate separation of 1.49 cm and a plate area of 25.0 cm2. The plates are charged to a potential difference of 255 V and disconnected from the source.
The light ray makes an angle of α = 32.1° with the normal line at the boundary of linseed oil and water. find the angles θ1 and θ2. Note that n = 1.48 for linseed oil.
A 65.0 kg skier initially at rest begins to slide down at a 10.0 degree slope. how fast will the skier be going a the end of the hill
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