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An apartment has a living room whose dimensions are 2.9 m x3.9 m x 6.0 m. Assume that the air in the room is composed of 79%nitrogen (N2) and 21% oxygen (O2). At atemperature of 22 °C and a pressure of 1.01 x 105Pa, what is the mass (in grams) of the air?
In a certain oscillating LC circuit the total energy is converted from electric energy in the capacitor to magnetic energy in the inductor in 1.30 µs. What is the frequency of oscillation
A beam of unpolarized light in air strikes a flat piece of glass at an angle of incidence 54.2 degrees. what is the index reflection of the glass
The press box at a baseball park is 40.0 above the ground. find the horizontal distance from the press box to second base
A 77cm tall graduated cylinder is filled with 29cm of glycerin (density 1260 {kg/m3) and 48cm of water. Find the pressure difference between the top and bottom
Two point charges are located on the axis as follows: charge = -1.80 at = -0.500 , and charge = 2.20 at the origin (= 0). What is the direction of the net force
You know your mass is 70kg , but when you stand on a bathroom scale in an elevator, it says your mass is 94kg . What is the acceleration of the elevator
a bathyshpere dives to a depth of 1000 m in the ocean. if the inside is maintained at one atmosphere, what is the net force acting on the round window
A 0.385kg block is attached to a horizontal spring and that oscillates in simple harmonic motion with a period of 0.303s. What is the force constant of the spring
A man stands at the midpoint between two speakers that are broadcasting an amplified static hiss uniformly in all directions. Find the total sound intensity that the man hears
A 270 g ball at the end of a string is revolvinguniformly in a horizontal circle of radius 0.51 m. The ball makes1.7 revolutions in one second. What is the speed of the ball as itgoes around in the circle?
A large wooden turntable in the shape of a flat disk has a radius of 2.25m and a total mass of 135kg, Find the angular speed of the turntable after the parachutist lands
A block of mass m1 = 1.75 kg and a block of mass m2 = 5.90 kg are connected by a massless string over a pulley in the shape of a solid disk having radius R = 0.250 m and mass M = 10.0 kg. These blocks are allowed to move on a fixed block-wedge of ..
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