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Suppose you carry a bag of groceries weighing 100 N from your car to your kitchen, a distance of 61 m, without raising or lowering the bag.
(a) What is the work done by the force you exert on the bag?
(b) Would the work be different if your kitchen were in an upstairs apartment?
Your new sports car of mass m is accelerated from rest at t=0 with constant power P along a level road. ingore any resistance effects, find the speed of your car as a function of time
Water flows straight down from an open faucet. The cross-sectional area of the faucet is 2.00 x10-4 m2, and the speed of the water is 0.87m/s as it leaves the faucet.
A certain elevator cab has a total run of 190 m and a maximum speed of 305 m/min, and it accelerates from rest and then back to rest at 1.22 m/s2. How long does it take to make the nonstop 190 m run, starting and ending at rest
To move a large crate of mass 30.05 kg across a rough floor, you push on it with a force at an angle of = 22.8° below the horizontal. Compute the acceleration of the crate if the applied force is 382 N and coefficient of kinetic friction is 0.486.
The resistance of a 9 H inductor is 90.0 ohms, What is the final steady current in the circuit
A 4.0 kg ball is located at x= 4.0m, y= 0m. A 6.0 kg ball is located at x= 2.0m, y= 4.0m, and a 3.0 kg ball s located at x= -1.0m, y= -2.0m. obtain the location of the center of the mass of this system
there are 4 charges located on the corners of a square of side d. q1(top left = +1q) q2(top right= -1q), compute the electric potential at the center of the square
A steel guitar string 50 cm long has a mass density of 1.5 g/m and the tension is 500 N. Find the frequency of the second harmonic
You are in a laboratory and investigating properties of a converging lens. You place a screen 80 cm away from the object, Calculate how far the image is from the lens
A 120-V fish tank heater has a power rating of 112 W. Calculate the resistance of the heater and Calculate the current through the heater
A 55 year old woman who is complaining of intermittent flushing, itching and heartburn for several months. Mega dosing of that of the following vitamins may result in these symptoms.
An electron in an oscilloscope is accelerated as a result of the potential difference between the cathode and anode. The electron has negligible initial speed and a final speed of 4.60 107 m/s. Find the voltage drop from cathode to anode.
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