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The rate of heat conduction out of a window on a winter day is rapid enough to chill the air next to it. To see just how rapidly windows conduct heat, calculate the rate of conduction in watts through a 2.50 m2 window that is 0.605 cm thick if the temperatures of the inner and outer surfaces are 5.00oC and -10.0o, respectively. This rapid rate will not be maintained - the inner surface will cool, and frost may even form. give answer in watts.
Intense white light is incident on a diffraction grating that has 720 lines/mm. What is the angular separation between the violet edge (400 nm) and the red edge (700 nm) of the first order spectrum produced by the grating
Consider a spherical closed surface, containing some protons. The total electric flux through the surface is 8x10-5 Nm2/C. How many protons are inside the surface
Skier loses a ski at the top of a 98 m hill. The ski proceeds to glide down the hill frictionless. Illustrate what speed is the ski traveling at the bottom of the hill?
What is the average speed of the Jet Aircraft during takeoff?Compute the distance covered by the Jet Aircraft during the takeoff? What is the acceleration of the Jet Aircraft during the takeoff? Compute the force acting on the Jet Aircraft during the..
A horizontal magnetic field of 2.0×10?4 T is at an angle of 25 to the direction of the current in a straight, horizontal wire 75 cm long. what is the magnitude of the force on the wire
A nozzle of inner radius 1.05 mm is connected to a hose of inner radius 8.00 mm. The nozzle shoots out water moving at 25.3 m/s. What is the mass flow rate? What is the volume flow rate?
If the principal quantum number n were limited to the range from 1 to 5, how many elements would we find in nature
Diane (weight 255 N) is practicing on a tightrope that is 6.00 meters long and sags by 0.120 meters. find the force on each eyebolt holding the tightrope
a horizontal spring mass system oscillates on a frictionless table. find the maximum extension of the spring
At t = 0, a 750 g mass at rest on the end of a horizontal spring (k = 125 N/m) is struck by a hammer, which gives the mass an initial speed of 2.76 m/s. Determine the position as a function of time
An electron moving at 4.20 103 m/s in a 1.50 T magnetic field experiences a magnetic force of 1.40 10-16 N. What angle does the velocity of the electron make
The terminals of a 12-V battery are connected to parallel plates. What plate separation would produce an electric field between the plates of 1400 N/C
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