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Consider a glass window pane that has the following properties:Density: 2300 kg m-3Specific heat: 840 J kg-1 ?C-1Coefficient of linear thermal expansion: 8.5 × 10-6 ?C-1Thermal conductivity: 0.80W m-1 ?C-1Colour: a pretty shade of blue.TheThe pane is 1.8m high, 1.5m wide, and 8.0mm thick. If the temperature at the inner surface of the glass is 28?C and that at the outer surface 4.0 ?C, and the heat transfer is in a steady state, how much heat is lost by conduction through the window each hour?
It has been claimed that an insect called the froghopper (Philaenus spumarius) is the best jumper in the animal kingdom. How long did it take to reach that velocity
You would like to store 8.1 J of energy in the magnetic fieldof a solenoid. The solenoid has 530 circular turns ofdiameter 7.2 cm distributed uniformly along its 28 cmlength. How much current is needed?
a 4.0x10-6 farad capacitor is connected in series with a 2000 ohm resistor across a 20v-dc power supply and an open
A skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. Find the work done by the net external force acting on the skier
A 3.00-kg block starts from rest at the top of a 30.0degree inclineand slides 2.00 m down the incline in 1.50 s. Find (a) theacceleration of the block, (b) the coefficient of kinetic frictionbetween the block and the incline, (c) the frictional force..
A man pushes on a piano with mass 200 {rm kg} so that it slides at constant velocity down a ramp that is inclined at 18.3^circ above the horizontal floor. Ignore any friction acting on the piano.
A satellite of mass 4500 kg orbits the Earth(mass = 6.0 1024 kg) and has a period of 5800 s. Find the magnitude of the Earth's gravitational force on the satellite
you are on the moon and would like to send a probe into space so that it does not fall back to the surface of the moon. what launch speed do you need
q1. revolutionary war cannon with a mass of 2220 kg fires a 22.7 kg ball horizontally. the cannonball has a speed of
Electrons are ejected from a metallic surface with speeds ranging up to 4.60 × 105 m/s when light with a wavelength of 625 nm is used. a)What is the work function of the surface? b) What is the cutoff frequency for this surface?
White light is incident on an equilateral prism with light parallel to one side. Find the angular spread as the light leaves the prism
In the drawing, the weight of the block on the table is 422 N and that of the hanging block is 185 N. calculate the acceleration of the two blocks
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