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Question: You are tasked with putting together the schedule for a new subway line. The trains are supposed to speed up and slow down at a constant acceleration of 0.142 g. The cruising speed between stations should be 42.1 mph.
Part A: How much time should you budget for the travel of a train between two stations that are 2.85 miles apart.
I need help to solver the above question and provide your answer in seconds.
If the circular surface of the upper end of the rod is maintained at 290 K, what is the approximate boil-off rate of liquid helium after the lower half has reached 4.20 K
The muons created by cosmic rays in the upper atmosphere rain down uniformly on the earth's surface, although some of them decay on the way down, with a half-life of about 1.5?s (measured in their rest frame).
A baseball (m = 155 g) approaches a bat horizontally at the speed of 40.5 m/s (91 mi/h) and is hit straight back at a speed of 45.5 m/s (102 mi/h).
A bullet of mass 240 g is fired horizontally from a gun with a velocity of 800 m/s into a wooden block of mass 5.0 kg sitting on a horizontal table. If the bullet embeds itself into the block, find the velocity of the block after being hit by the bul..
Xenon ions with a mass of 2.20×10?25 kg and charge +e are accelerated between the plates of an ion drive rocket engine to an exhaust velocity of 43,200 m/s. What is the potential difference between the plates
What is the linear speed of the phonograph needle
At a certain point on Earth's surface in the southern hemisphere, the magnetic field has a magnitude of 4.9 10-5 T, What is the magnitude and direction of the force on the muon
A light beam of wavelength 500 nm in air hits transparent material. When the angle of refraction is 40.0 degrees, Find the polarizing angle
Two capacitors, of 3.2 and 4.8?F capacitance, are connected in parallel across a 300 V potential difference. Calculate the total energy stored in the capacitors
A certain mass oscillates without friction on the end of a horizontal spring. At time t= 1.20 s, the mass is at position x= 0.120m (measured from the equilibrium location), has velocity of v= 14.5m/s, and is accelerating at a = -98.0m/s^2
q1. a pipe open only at one end has a fundamental frequency of 241 hz. a second pipe initially identical to the first
A movie camera with a (single) lens of focal length 90 mm takes a picture of a person standing 21 m away. If the person is 180 cm tall, what is the height of the image in millimeters
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