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Light is incident on a plane mirror by an angle of incidence? i = 35°. If this experiment takes place under water (n = 1.33), what is the angle of reflection?
in the rectangle in the drawing a charge is to be placed at the empty corner to make the net force on the charge at
The work function of zinc is 3.6 eV. What is the maximum energy of the photoelectrons ejected by UV light of wavelength 3000 angstroms?
A gas cylinder holds .10 mol of O_2 at 150 degrees Celsius and a pressure of 3.0atm. The gas expands adiabatically until the pressure ishalved.
One car mass 750 g is moving 36 km/hr to the right on track collides with a car of mass of 500g, Find the velocity and direction of the heavier car after collision
a convergent lens has a focal length of 7cm. a 2cm tall image forms 30cm from the lens.a how far is the magnification?b
Kaitlynne is using a magnifying glass (f = 0.098 m) while trying to solder a computer circuit board. find the distance between the glass and the circuit board
A 750 air-track glider attached to a spring with spring constant 10.5 is sitting at rest on a frictionless air track. What is the amplitude of the subsequent oscillations
The linear density of a rod of length 4 m is given by p(x) = 9 + 2sqrt(x) measured in kilograms per meter, where x is measured in meters from one end of the rod. Find the total mass of the rod.
A motor (mass of 180kg) sits on a horizontal 2.25 m masslessplank. The motor is 1.00 m from one end of the plank. Find the supporting force applied at each end of the plank to keep thesystem in equilibrium
A car starts from rest and travels for 10s with a uniform acceleration of +2.4 m/s2. The driver then applies the brakes, causing a uniform negative acceleration of -2.0 m/s2.
calculate the molarity and the molality of an nh3 solution made up of 30.0 g of nh3 in 70.0g of water. the density of
The police at the scene of the accident observed that the point of impact is 120 m from the base of the cliff. Explain how fast was the car traveling when it went over the cliff?
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