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There is an old question that goes like this: "A space explorer moving through the middle of intergalactic space, very far from any planet or star, notices a large rock floating around the cabin of the spaceship. The explorer wishes to take it as a specimen from an alien planet. Should he push gently or kick it toward the storage compartment?" You now know that there is an equal and opposite reaction based on Newton's 3rd Law and perhaps you are worried about the force of that rock hitting your spaceship (Newton's 1st Law)! Does Newton's 2nd law play a role here? If so when? It is doubtful that you will ever be in a spaceship. So, how could you apply these 3 laws in your life on Earth today? Give an example or two.
The drawing shows a rectangular piece of wood. The forcesapplied to corners B and D have the same magnitude of 12 N and aredirected parallel to the long and short sides of the rectangle. Thelong side of the rectangle is twice as long as the short ..
Two point-source loudspeakers are a certain distance apart, and a person stands 12.0 m in front of one of them on a line perpendicular to the baseline of the speakers. If the speakers emit identical 1000.0-Hz tones, what is their minimum nonzero s..
A hunter aims directly at the target (on the same level) 115 m away. If the bullet leaves the gun at a speed of 205 m/s, by how much will it miss target.
the highest recorded waterfall in the world is found at angel falls in venezuela. its longest single waterfall has a
A Carnot engine has a power output of 130 kW. The engine operates between two reservoirs at 20°C and 500°C, How much energy does it take in per hour
A 4.0-m-long iron bar of uniform cross section is held perpendicular to the wall by a wire from the end of the bar to the wall, what is the magnitude of the vertical component of force produced by the wall
A tuning fork labelled 392 Hz has the tip of each of its two prongs vibrating by amplitude of 0.600mm. What is the maximum speed of the tip of a prong?
A coil with length of 11 cm and a cross-section of 2.3 cm is connected in series with a 8.0k? resistor. A 42.0 V battery is applied across the two devices, What is the energy density inside the coil
An electric field applies a force of 9.11x10^-16 N to an electron emitted from a cathode of a cathode ray tube at essentially zero velocity
a capacitor is to be made of two parallel plates of gold separated by a sheet of plastic. the plastic sheet is 1 mm
The CG of a 150kg polar bear standing on all fours is 80 cm from her for paws and 100cm from her hind paws. Discover the force the ground exerts on each of her paws.
An air-filled parallel-plate capacitor has a capacitance of 1.4 pF. The separation of the plates is doubled and wax is inserted among them. The new capacitance is 2.1 pF. Discover the dielectric constant of the wax.
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