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A racing car of mass 1000kg moves around a banked track at a constant speed of 30ms. Assuming the total reaction at the wheels is normal to the track and the horizontal radius is 100m. Calculate the angle of inclination of the track to the horizontal.
A horizontal force F holds a block on a frictionless inclined plane in equilibrium. What is the normal force exerted by the incline on the block
When a high-power laser is used in the Earth's atmosphere, At this maximum intensity, what power can be delivered in a cylindrical beam of diameter 6.56 mm
A Carnot engine operating between energy reservoirs at temperatures 300K and 490Kproduces a power output of 800W. What is the rate of heat input
A cork shoots out of a champagne bottle at an angle of 35.0 degree above the horizontal. what was its initial speed
Coherent light from a sodium-vapor lamp is passed through a filter that blocks everything except for light of a single wavelength. compute the wavelength of the light that falls on the slits
A stone has a mass of 3.15 g and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.941. determine the radius r of the tire
A conductor is suspended by two flexible wires has a mass per unit length of 0.04 kg/m. Find what is the required direction for the current
question1the elastic energy stored in your tendons can contribute up to 35 of your energy needs when running. sports
If you charge a pocket comb by rubbing it with a silk scarf, how can you determine if the comb is positively or negatively charged.
question a screen is placed49.0cm from a single slit which is illuminated with light of wavelength 677nm. if the
What is the (a) “current” due to the electron orbiting in a circular path about the proton in a hydrogen atom? Take the orbital radius to be r = 0.0529 nm.] (b) What magnetic field strength does this “electron current” create at the proton locatio..
A bicycle with 0.8-m-diameter tires is coasting on a level road at 5.6m/s. What is the speed of the blue dot when it is 0.4 m above the road
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