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Objects with masses m1 = 8.0 kilogram and m2 = 4.00 kilogram are connected by alight string that passes over a frictionless pulley. If, when the system starts from rest, m2 falls 1.00 m in 1.30 sec. Find the coefficient of kinetic friction between mass and table.
A 169 g cube of ice at0?C is dropped into 2.9 kg of water that wasoriginally at 79?C. What is the final temperature of the water after after the ice melts
An aluminum-alloy rod has a length of 10.009 cm at 16.200°C and a length of 10.021 cm at the boiling point of water. compute the length of the rod at the freezing point of water
A 1600-kg car starts from rest to reach 60.0 miles/h in 6.50 s. What is the engine's power output, How much work is done by the engine during the acceleration
in a long solenoid the density of the wire is 180 turnscm. if the current in the wire is 0.680a what is the strength of
A charging bull elephant with a mass of 5240 kg comes directlytoward you with a speed of 4.55m/s. You toss a 0.150 kg rubber ballat the elephant with a speed of 7.81 m/s.
A spherical bowling ball with mass m = 4 kg and radius R = 0.108 m is thrown down the lane with an initial speed of v = 8.8 m/s. How far does the bowling ball slide before it begins to roll without slipping
A 0.037 kg aluminum bullet traveling at 460 m/s strikes an armor plate and comes to a stop. what is the bullet's temperature change in degrees Celsius
The wingspan of a 747 jetliner is 60 m. If the plane is flying(horizontally) at 900 km/h in aregion where the vertical component of Earth's magnetic fieldis 0.16 G, what emf develops between the plane's wingtips?
A 150-g block of ice at 0°C is placed in an insulated thermos containing 568 g of water at 29°C. What is the mass of water at the end
you are writing a short adventure story for your english class. in your story two submarines on a secret mission need
A 50.0-g ball moves at 30.0 m/s. If its speed is measured to anaccuracy of 0.10%, what is the minimum uncertainty in its position
An atomic clock moves at 1400 km/h for 1.15 h as measured by an observer using an identical clock on Earth. How many nanoseconds slow will the moving clock be at the end of the 1.15-h interval? Hint: The following approximation is helpful: 1 ? x ? (1..
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