You are riding on a train. You have a drinks glass in front of you on a table. You notice that the glass, from your perspective, suddenly starts moving towards the front of the train. This appears to violate Newton’s 1st Law of Motion. Explain, using Newton’s Laws, what is occurring.
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You are riding on a train. You have a drinks glass in front of you on a table. You notice that the glass, from your perspective, suddenly starts moving towards the front of the train. This appears to violate Newton’s 1st Law of Motion. Explain, using Newton’s Laws, what is occurring.
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- HelpAn astronaut is doing a spacewalk on a long tether at 0.1 km away from the International Space Station (mass of 420,000 kg). His spacesuit includes a very sensitive gravitometer, which indicates the gravitational force acting on the astronaut and his spacesuit from the ISS is 7.0 E−7 N. What is the mass of the astronaut in his suit if G = 6.67 E−11 N*m2/kg2? 1. 150 kg 2. 200 kg 3. 250 kg 4. 300 kgTwo people, one of mass 100 kg and the other of mass 50 kg, stand facing each other on an ice-covered (essentially frictionless) pond. If the heavier person pushes on the lighter one with a force F, then A. the force felt by the heavier person is (-1/2)FB. the force felt by the person is -2FC. the magnitude of the acceleration of the lighter person will be half of the magnitude of the acceleration of the heavier personD. the magnitude of the acceleration of the lighter person will be twice the magnitude of the acceleration of the heavier personwww.crackap.com ---------------------
- Which of the following statement/s is/are correct regarding the concepts of motion? According to Aristotle, a body that is stationary will continue to be stationary unless a force is applied to it. According to Aristotle, a falling body accelerates because its weight increases as it approaches Earth’s surface. According to Galileo, a body in motion along a frictionless surface does not need an external force to maintain its motion. According to Galileo, objects fall at the same rate even if one object is more massive than the other object. 1 and 2 3 and 4 1,3, and 4 1,2,3 and 4 Which of the following is a correct explanation to one of the consequences of Special Relativity? A. Time Dilation describes that twins would have different age difference if they both travel close to the speed of light. B. Mass-energy Equivalence paved the way for humans to create grenades to be used during wars and political conflicts. C. Relativity of Simultaneity implies that two events would not…A flea jumps by exerting a force of 1.19 ✕ 10−5 N straight down on the ground. A breeze blowing on the flea parallel to the ground exerts a force of 0.700 ✕ 10−6 N on the flea. Find the direction and magnitude of the acceleration of the flea if its mass is 6.40 ✕ 10−7 kg. Do not neglect the gravitational force. (Assume that the breeze blows in the +x-direction and that the +y-direction is up.) Magnitude= ? Direction (counterclockwise from x axis)= ?An object is at rest on a table. The earth is pulling this object down with a force of magnitude m · g. If we consider this force as the action of an action-reaction pair, what is the reaction force of this force m · g? a) The table pushes the object up b) The object pulls up to the ground c) The earth pushes up the table d)The object pushes the table down e)The table pushes down to the ground
- A 80 kg woman on roller skates pushes a 30 kg girl, also on roller skates, with a force of 100 N. The magnitude of the force exerted by the girl on the woman is O 200 N O 100 N O 50 N O 40 N O 38 N zeroIn the movie The Rocketeer, a teenager discovers a jet-powered backpack in an old barn. The backpack allows him to fly at incredible speeds. In one scene, however, he uses the backpack to rapidly accelerate an old pickup truck that is being chased by “bad guys.” He does this by bracing his arms against the cab of the pickup and firing the backpack, giving the truck the acceleration of a drag racer. Is the physics of this scene “Good,”“Bad,” or “Ugly?” Draw and Explain.I am a little confused on Newtons Seconds Law in Two dimensions. I know that when acceleration is zero that the net force in both the x and y-directions becomes zero. Is that because when acceleration is zero there's no net force?