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In solar heating applications, heat energy is stored in some medium until it is need (e.g., to heat a home at night). Should this medium have a high or a low specific heat? Suggest a substance that would be appropriate for utilize as a heat-storage medium, and describe its advantages.
a boat has a mass of 6800 kg. its engines generate a drive force of 4100 n due west while the wind exerts a force of
a particle is to move in an xy plane clockwise around the origin as seen from the positive side of the z axis. in
The carbon isotope 14C is used for carbon dating of archeological artifacts. 14C ( mass 2.34×10?26kg) decays by the process known as beta decay in which the nucleus emits an electron, What is the recoil speed of the nucleus
your car key has fallen to the bottom of a clear pool of water n 1.33 with a uniform depth of 3.0 m. you are standing
A 9.91 -m ladder with a mass of 22.3 kg lies flat on the ground. A painter grabs the top end of the ladder and pulls straight upward with a force of 257 N. What is the net torque acting on the ladder
find coefficient of kinetic friction between m1 and shelf.
A large parallel plate capacitor has plate separation of 0.90 cm and plate area of 355 cm2. estimate How much work is done on the capacitor
Amtrak's 20th-Century Limited is en route from Chicago to New York at 120km/h, How far was the train from the cow when the engineer first applied the brakes
A square loop of wire is believed in a uniform 0.29 T magnetic field directed perpendicular to the plane of the loop. The length of every side of the square is decreasing at a constant rate of 5.8 cm/s. What emf is induced in the loop when the length..
two cars cover the same distance in a straight line. car a covers the distance at a constant velocity. car b starts
A 1.80 MHz sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward sound receiver as the heart beats.
A vector A has a magnitude of 52.6 m and points in a direction 19.4° below the positive x axis. calculate the magnitude of the vector C
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