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A 1.23-kg box slides up an incline plane with a speed of 8.6 m/s. If the angle of the plane with respect to the horizontal is 11 degrees and the coefficient of friction is 0.33, how long will it take for the box to come to rest?
Geologists measure conductive heat flow out of the earth by drilling holes (a few hundred meters deep) and measuring the temperature as a function of depth, what rate is the earth losing heat via conduction?
Suppose two highly precise, identical clocks are synchronized and one clock is placed on the North Pole, how much will the clocks differ in time
The coefficient of expansion of iron and zinc
A concrete highway curve of radius 60 m is banked at a 13.0^circ angle. What is the maximum speed with which a 1300 kg rubber-tired car can take this curve without sliding? (Take the static coefficient of friction of rubber on concrete to be 1.0.)
Two parallel metal rods form a plane inclined at 20.0° to the horizontal. The upper end of the rods are connected together by a resistor of 102.0 ?. What is the maximum speed of the bar
An airplane's takeoff speed is 320 km/h. If its average acceleration is 2.90 m/s^2, how long is it on runway after starting its takeoff roll.
Objective questions based on force and acceleration.
A boy of mass 35 kg and a girl of mass 40 kg are skating towards each other with speeds of 2.5 m/s, and 2.0 m/s respectively. Assume that there is no friction, and find their combined velocity after they meet
For light that originates within a liquid and strikes the liquid/air interface, What is Brewster's angle for this light
A car traveling at 25 m/s ( about 55 mph) crashes into a road barrier and comes to a stop in 0.2 sec. What is the average force in Newtons felt by a 75 Kg person in a set belt
The coefficient of kinetic friction is 0.350. Illustrate what should be the magnitude of vector P , so that the net work done by it and the kinetic frictional force is zero?
If an organ pipe, 2 ft long and with one end closed and one end open, how long is the second organ pipe
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