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A car starts from rest at a stop sign. It accelerates at 2.0 m/s2 for 5.7 seconds, coasts for 2.3 s , and then slows down at a rate of 1.5m/s2 for the next stop sign.
How far apart are the stop signs?
A spring is subjected to a force of 40 Newtons at a rest position. When an additional load of 3 N is exerted the spring has moved by 20 cm. Calculate the spring constant k of this spring.
charge 1 is equal to 6.0x10^-9 C, and is located at (0.30,0) meters on xy coordinates. What is the direction the net force on the 5.0 nC charge
an object which has a height of 12.5 cm is placed 45.0 cm in front of a concave spherical mirror which has a focal
A 0.60-kg object connected to a light spring with a force constant of 22.8 N/m oscillates on a frictionless horizontal surface. Determine the maximum speed of the object
A person swings a 0.521-kg tether ball tied to a 4.60-m rope in an approximately horizontal circle. what is the maximum angular speed of the ball
A rope, under a tension of 370 N and fixed at both ends, oscillates in a second-harmonic standing wave pattern. What is the speed of the waves on the rope
Light precedes through three polarizing sheets. Unpolarized light enters the 1st sheet and the resultant vertically polarized beam continues through the 2nd and 3rd. What percent of the original intensity emerges from filter #1
A 2.6-kg cart is rolling along a frictionless, horizontal track towards a 1.4-kg cart that is held initially at rest. What is the total momentum of the system of the two carts at this instant
A Porsche 914 accelerates uniformly from 0 to 60 miles per hour n 5 seconds. estimate acceleration equal to that of the Porsche
A satellite circles the earth in an orbit whose radius is 2.78 times the earth's radius. What is the period of the satellite
A snow surface has a temperature of -10C. What is the full spectrum remittance (assuming that snow can be treated as a blackbody for long wave radiation)?
A block of mass 1.00kg slides along a horizontal table with speed V0 = 2.50m/s. How far did the spring compress when the block first momentary comes to rest
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