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Automobile A starts from O and accelerates at the constant rate of 0.75 m/s2. A short time later it is passed by bus B which is traveling in the opposite direction at a constant speed of 6 m/s. Knowing that bus B passes point O 20 s after automobile A started from there, determine when and where the vehicles passed eachother.
A particle known as a pion lives for a short time before breaking apart into other particles. Assume it is moving at a speed of 0.980c, and an observer who is stationary in a laboratory measures the particle's lifetime to be 5.00*10-8 s.
Describe the benefits,cogitive problems and consequences of multi tasking.
A spaceship in distress sends out two escape pods in opposite directions. One travels at a speed v1 = 0.60c in one direction, What speed does the first escape pod measure for the second escape pod
a horizontal plank of mass m and length l is pivoted at one end. the planks other end is supported by a spring of force
A conducting rod with a length of 25 cm is placed on a U-shaped metal wire that has a resistanceRof 8.0 ? as shown in the figure. The wire and the rod are placed in the plane of the paper.
A guitar string is 60 cmlong. The string has a mass of 1.8g and is under a tensionof 945N. Calculate the fundamental wavelength for this string
Two capacitors are connected in parallel across the terminals of a battery. One has a capacitance of 2.06 F and the other a capacitance of 3.85 F. These two capacitors together store 5.28E-5 C of charge. What is the voltage of the battery?
The motion detector used in a physics lab sends and receives 22.52 kHz ultrasonic pulses. What is the wavelength of the waves emitted by the motion detector
Birds resting on high-voltage power lines are a common sight.The copper wire on which a bird stands is 2.1 cm in diameter and carries a current of52 A. calculate the potential difference across its body
A positive charge +q1 is located to the left of a negative charge -q2. On a line passing though the two charges, What is the distance between the charges
Water at 100 degrees is flowing through a long pipe of radius 1rapidly enough so that we may assume that the temperature is 100 at all points. A t=0, the water is turned off and the surface of the pipe is maintained at 40 degrees from then on (neglec..
A 5.0 kg wooden block is placed on an adjustable wooden inclinedplane. (hint: For wood onwood, μs is approximately .58and μk is approximately .40 .) What is the angle of incline above which the block will startto slide down the plane?
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