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Unpolarized light whose intensity is 1.40 W/m2 is incident on the polarizer as shown in the figure. If the analyzer is set at an angle of theta = 80o with respect to the polarizer, what is the intensity of the light that reaches the photocell?
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. What is the net charge of all these electrons
A 8.0 x15 swimming pool slopes linearly from a 1 depth at one end to a 3.70 depth at the other. What is the mass of water in the pool.
The Sun emits energy at the rate of about 3.9 x 1026 W, estimate the fraction of this energy that falls on Earth
A golf ball of mass 0.045 kg is hit off the tee at a speed of 34m/s. Find the impulse imparted to the golf ball
Calculate the fluid force (in Newtons) on a square plate with aside of 2 m that is submerged at ahorizontal angle of 30°. Assumethat the top edge of the plate is located at the surface of the water.
A 10 kilogram block is located on an ideal vertical spring that has been compressed 20 centimeter from its equilibrium length. Compute the speed of the block as it leaves the spring
A 350kg piano slides 3.7m down a 33^\circ incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (see the figure(Figure 1) ). The effective coefficient of kinetic friction is 0.32.
Find the flow distribution of water in the branching system using a trial method. Assume for all pipes f ¼ 0.02. The pump curve is represented by the relation HP ¼ 120 2 0.5Q2 (head in m, discharge in m3=s), HA ¼ 20 m, HB ¼ 50 m, HC ¼ 100 m, and H..
The intensity of solar radiation near the earth is 1.4 × 103 W/m^2. What force is exerted by solar radiation
A 0.430-kg block is attached to a horizontal spring that is at its equilibrium lenght , and whose force constant is 20.0N/m. The block rests on a frictionless surface. A 0.0500-kg wad of putty is thrown horizontally at the block, hitting it with ..
An electron is in the n=5 state of hydrogen. To what states can the electron make transitions and what are the energies of the emitted radiations?
A simple pendulum has a period of 3.74 s. The acceleration of gravity is 9.8 m/s^2 What is its length? What would its period be on the Moon
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