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White light strikes a diffraction grating ( 890 lines/mm) at normal incidence. What is the highest order visible maximum that is formed?
A 2.40kg mass is pushed against a horizontal spring of force constant 26.0N/cm on a frictionless air table. The spring is attached to the tabletop, Find the greatest speed the mass reaches
A cube floats in water. The length of each side 8 cm. Thecube is 3/4 submerged. Find the volume of the water displaced
A 49.0 kg ballet dancer stands on her toes through a performance with four square inches (26.0cm2) in contact by the floor. What is the pressure exerted by the floor over the area of contact in the following cases?
a small block of mass m is given an initial speed vo up a ramp inclined at angle theta to the horizontal. it travels a
Inside the cylinders of a diesel engine, the mixture of fuel and air is compressed to about 1/20 of its original volume. Though diesel engines have no spark plugs to ignite this mixture, it ignites anyway because...
When ultraviolet light with a wavelength of 250 nm is incident on a particular metal surface, What is the threshold frequency for this particular metal
A 3.5 mL syringe has an inner diameter of 5.0 mm, a needle inner diameter of 0.24 mm, and a plunger pad diameter, The nurse empties the syringe in 2.3 s. What is the flow speed of the medicine through the needle
A 1.00 kg glider on a horizontal air track is pulled by a string at an angle θ. The taut string runs over a pulley and is attached to a hanging object of mass 0.500 kg .
how many electrons flow through a 1500 watt electric spaceheater operating with a 120 volt input and a current of 12.5amperes for 600 seconds
The energy provided each hour by heat to the turbine in an electric power plant is 9.5 x 10^12 J. If 6.5 x 10^12 J of energy is exhausted each hour from the engine as heat
Two point charges each have a value of 30.0 mC and are separated by a distance of 4.00 cm. What is the electric field midway between the two charges
An object of mass 4.0 kg is allowed to fall from rest under the force of gravity for 3.4 s. What is the change in its momentum
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