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A glass windowpane in a home is 0.62 cm thick and has dimensions of 1.1 m multiplied by 1.6 m. On a certain day, the indoor temperature is 20°C and the outdoor temperature is 0°C.
a) What is the rate at which energy is transferred by heat during the glass?
b) How much energy is lost during the window in one day, assuming the temperatures inside and outside remain constant?
The Hall voltage across a conductor in a 55 magnetic field is 1.9 . When used with the same current in a different magnetic field, the voltage across the conductor is 3.
A space probe is fired as a projectile from the Earth's surface with an initial speed of 1.78 x 10^4 m/s. What will its speed be when it is very far from the Earth
What is the period of oscillation of the scale? State your reply numerically in seconds.
A typical nuclear power plant delivers heat from the reactor to the turbines at a temperature of 480°C. what is the maximum possible efficiency of these turbines
A simple harmonic oscillator is constructed from a spring which is connected to a mass of 0.3 kg. What is the total energy of the oscillation
A rocket fires two engines simultaneously. One produces a thrust of 615 directly forward while the other gives a thrust of 474 at an angle 39.6 above the forward direction.
A steady torque of 23-N•m is applied to a grindstone whose moment of inertia is 0.130 kg•m2. Using energy principles, and neglecting friction, determine the angular speed after the grindstone has made 13.0 revolutions.
describe the enery transformations that take place as you swing on a swing.why do you have to keep pumping to keep swinging as high? what happens if you stop pumping
Calculate the potential energy of a rock with a mass of 55 kg while sitting on a cliff that is 27 m high.
There is a square with 4 charges. q3 is 3x10^-6 C and in the top left q4 is -2x10^-6 C and in the top right q2 is 2x10^-6 C and in the bottom left q1 is 4x10^-6 C and in the bottom left The distance between each charge on the outer edge of the squ..
two racing boats set out from the same dock and speed away at the same constant speed of 86.0 kmh for half an hour
Express your reply in terms of the cylinder's radius r and the magnitude of the acceleration because of gravity g.
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