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Problem: A car starts from rest and travels 20 m within 4 seconds, in a straight line, at constant acceleration.
Question: What is the acceleration of this car?
Please show your work and steps to find the acceleration of this car.
A hot water stream at 80 degrees C enters a mixing chamber with a mass flow rate of 0.5kg/s where it is mixed with a stream of cold water at 20 degrees C. If it is desired that the mixture leave the chamber at 42 degrees C,
At time t = 0 in the galaxy frame of reference, civilization A launches its first interstellar spacecraft. Civilization B launches its first spacecraft 50,000 years later. A being from a more advanced civilization C is traveling during the galaxy at ..
Calculate the magnitude of the electric field at one corner of asquare 0.8 m on a side if the other three corners are occupied by3.2x10-6 C charges
A wire carrying a current of 2.10 A is bent into the shape of a square loop of side length 5.92 cm and is placed in the xy-plane. What is the torque on the wire loop
A ball of mass 1.5 kg is thrown upward. It leaves the throwers hand with a velocity of 10 m/s. Calculate the average force acting on the ball
A woman walks for 4 minute directly north with an average velocity of 6km/h; then she walks eastward at 4 km/h for 10 minute. Find her average speed for the trip
An object with a charge of 0.980 µC is placed at the center of a regular icosahedron with 20 equivalent surfaces. What is the electric flux through one surface of the icosahedron?
A 10.0-kg rocket is fired vertically from Cape Canaveral. Its fuel gives it 1960-J of Kinetic Energy by the time the fuel is exhausted. What height will the rocket rise
Radar is used to determine distances to various objects by measuring the round-trip time for an echo from the object. How far away is the planet Venus if the echo time is 1500 s
Three identical masses of 620 each are placed on the x axis. One mass is at = -130 , one is at the origin, and one is at = 320. What is the magnitude of the net gravitational force on the mass at the origin due to the other two masses? Take the gr..
a troop of girl scouts is camping in the snow. as it is cold outside they decide they dont want to go to the lake to
two small spheres spaced 20.0 centimeters apart have equal charge.how many excess electrons must be present on each
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