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The order in which vectors are added does not matter. Mathematicians say that vector addition is commutative. Which ordinary arithmetic operations are commutative? Which are not?
A hockey puck slides over ice with ?k = 0.013. What initial speed should the puck have so it travels the 40m length of the rink
A nylon guitar string has a linear density of 5.56 g/m and is under a tension of 161 N. The fixed supports are D = 74.4 cm apart. The string is oscillating in the standing wave pattern shown in the figure. Calculate the (a) speed, (b) wavelength, and..
The two blocks in the figure are connected by a mass less rope that passes over a pulley. The pulley is 17cm in diameter and has a mass of 1.9kg. how long does it take the 4.0 kg block to reach the floor
A sky-diver jumps out of a plane and achives (terminal velocity) before opening his parachute.Explain what is meant by the term terminal velocity,why it occurs and what value of velocity a typical sky diver might experience.
A car is parked at the top of a 52m -high hill. It slips out of gear and rolls down the hill. How fast will it be going at the bottom
Bridge builders often use rivets that are larger than the rivet hole to make the joint tighter. The rivet is cooled before it is put into the hole. A builder drills a whole 1.2230 cm in diameter for a steel rivet 1.2250 cm in diameter.
A test tube contains 2.86x10-4 m3 of liquid carbon tetrachloride (? = 1240x10-6 (C°)-1) at a temperature of 67.0°C. Find the volume of carbon tetrachloride in the test tube at -13.0°C
Suppose Fuzzy, a quantum-mechanical duck, lives in a world in which h = 2?J · s. What is the minimum uncertainty in the duck's speed
A 5 x 10^3 Newton weight is held suspended in equilibrium by two cables. Cable one applies a horizontal force to the right of the object and has a tension, T1. Find what is the tension in first cable
What is the minimum amount of electrical energy required by the refrigerator to carry out this process if it operates between reservoirs at temperatures of 20.0 °C and –20.0 °C?
An object is moving with constant acceleration. During 24 s of the motion the object traveled 40 m and during the same 24 s the object speedincreased 4 times. Calculate the acceleration.
Three particles, each with a charge of 6.35 μC and a speed of 305.0 m/s, enter auniform magnetic field whose magnitude is 0.205 T. What is the magnitude of the magnetic force on particlea?
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