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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
One tire is inflated to a pressure of 40 and goes a distance of 18.0 ; the other is at 105 and goes a distance of 93.4. Assume that the net horizontal force is due to rolling friction only and take the free-fall acceleration to be = 9.80.
The energy imparted to an electron as it moves through a potential of magnitude V is eV, where e is the charge on an electron. How do you find theoretical value for the slope of your line
You are driving along a highway at 25.5 m/s when you hear a siren. You look in the rear-view mirror and see a police car approaching you from behind with a constant speed, How fast was the police car moving
A ladder of weight 200 N and length 10 meters leans against a smooth wall (no friction on wall). The ladder makes an angle 50.0° with the ground. A fire fighter of weight 600 N climbs a distance x up the ladder. The coefficient of friction among the ..
What is the magnitude T of the tension force acting on one edge of the section while the internal bladder pressure is 2700Pa and each of the four tension forces is directed 6.4° below the horizontal.
You drop a 0.490 kg block of copper from a height of 2.90 m. by how much does the temperature of the copper increase
A guitar string is 92 cm long and has a mass of 3.8 g. From the bridge to the support post (= L) is 63 cm, What are the frequencies of the fundamental and first two overtones
A tank holds a 1.44-m thick layer of oil that floats on a 0.96-m thick layer of brine. Both liquids are clear and do not intermix. what is the angle that the ray in the air makes with the vertical
A 7 kg ball has a velocity of 16 m/s. How much work would be required to stop the ball
A 0.0100 kg wire, 2.00 m long, is fixed at both ends and vibrates in its simplest mode under a tension of 185 N. What could be the frequency of the tuning fork
A star's temperature is 5649 K.According to the Stefan-Boltzmann law, what is the total power output of the star
A solid sphere with a radius of 0.70 m can be rotated about an axis through its center by a torque of 10.5 N *m which accelerates it uniformly from rest through a total of 180 revolutions in 15.0 s
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