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A 2.40-cm-thick wood floor covers a 4.0,m x 5.5m room.The subfloor on which the flooring sits is at a temperature of 16.4C, while the air in the room is at 19.2C. What is the rate of heat conduction through the floor? Use 0.200W/m*K for the thermal conductivity of wood.
The harmonic oscillator can be used as a model for the vibrational motion of a diatomic molecule. Describe the vibrational spectrum that is predicted by the harmonic oscillator model. In what region of the electromagnetic spectrum will the spectru..
0.20g of hydrogen gas are held in a rigid container. The temperature of the gas is changed from 50 K to 80 K. How much heat is needed.
A 3.0-kg particle has a position vector given by r=(2.0t^2i+3.0j) where r is in meters and t is in seconds. What is the angular momentum of the particle
q1. the rotational inertia of a collapsing spinning star changes to 45 its initial value. what is the ratio of new
Consider a spider walking from the top of a (stationary) beach ball. (Let that angular position = 0O.), At what angle does this slipping begin
The tires of a car make 55 revolutions as the car reduces its speed uniformly from 86km/h to 50km/h . The tires have a diameter of 0.90m. how much more time is required for it to stop
When Babe Ruth hit a homer over the 7.5 -high right-field fence 98 from home plate, roughly what was the minimum speed of the ball when it left the bat? Assume the ball was hit 1.4 above the ground and its path initially made a 37 angle with the grou..
Suppose your hair grows at the rate of 1/31 inch per day. Find the rate at which it grows in nanometers per second
A 75-kg water skier is being pulled by a horizontal force of520 N an has an acceleration of 2.4 m/s2. what force is needed to pull the skier at a constant velocity
The near point of a naked eye is 21 cm. When placed at the near point and viewed by the naked eye, a tiny object would have an angular size of6.0 × 10-5 rad. Find the focal length of the eyepiece
Two electrons in an atom are separated by 1.5 × 10^?10 m, the typical size of an atom, What is the force between them
A 508.6 N window washer is standing on a uniform scaffold supported by a vertical rope at each end. the scaffold weighs 386.7N and is 3.11m long. assume the windo washer stands 1.26m from one end. what is the force on the farther rope? answer in u..
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