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Explain in terms of Newton's law each of the following situations.
What happens when we shake down a mercury thermometer used for measuring body temperature?
What makes an unsealed air-filled balloon fly around when it's released?
How does a bumblebee hover in midair?
Suppose one gallon of gasoline produces 1.1 × 108 J of energy, and this energy is sufficient to operate a car for twenty miles. how many miles could the car go with that energy
A 5,000 kg satellite is orbiting the Earth in a circular path. The height of the satellite above the surface of the Earth is 800km. The velocity of the satellite is (Me = 5.98 x 10^24 kg, Re = 6.37 x 10^6 m, G = 6.67 x 10-11 N • m2/kg2)
A two-slit pattern is viewed on a screen 1.06 m from the slits. compute the total width of the central bright fringe
if a force of 500n is needed to stretch a spring 2 cm, what force is needed to stretch 5cm
The pilot of an aircraft wishes to fly due west in a 37.70 km/h wind blowing toward the south. The speed of the aircraft in the absence of the wind is 191 km/h.
A playground merry-go-round has radius 3-{rm m} and moment of inertia 3000-{rm{ kg}} cdot {rm{m}}^2 about a vertical axle through its center, and it turns with negligible friction.
What is the root-mean-square speed of chlorine gas molecules at a temperature of 320 K? (R = 8.31 J/mol×K, NA = 6.02 ¥ 1023, and the molecular mass of Cl2 = 71)
Conclude the magnitude and directional angle
A 2.18-m-long diving board of mass 13.2kg is 3.00m above the water. It has two attahcments holding it in place. Assuming that the board has a uniform density, find the force acting on each attachment
A parachute dropped from a 30 meter-high cliff falls with a constant velocity of 1.5 meters per second. How long does it take for the stone to hit the ground
Suppose that a comet that was seen in 627 A.D. by Chinese astronomers was spotted again in year 1988. determine the semimajor axis of the comet's orbit
The concrete wall of a building is 0.10m thick. The temperature inside the building is 20.0 °C, while the temperature outside is 0°C. Heat is conducted through the wall.
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