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Q1. A force of 20 N was used to push a box along the floor a distance of 6 m. How much work was done?
Q2. It took 60 J to push a table 2 m across the floor. With what force was the table pushed?
Q3. If 350 J of work are used to lift a 85 N box, how high is the box lifted?
Q4. How much power is used if a force of 45 N is used to push a box of books a distance of 9 m in 10 s?
Q5. How much work is done using a 500 watt microwave for 2 minutes (120 seconds)?
Q6. How long would it take a crane to do 550 J of work while using a power of 310 watts?
A tennis ball is hit with a speed of 27 m/s at an angle of 45o. It lands on the flat roof of a 13-m-tall building. What is its velocity at landing
An atomic nucleus of mass m traveling with speed v collides elastically with a target particle of mass 2m initially at rest and is scattered an 90 degrees. what angle does the target particle move after collision
What are the x and y components of the shell.
Suppose I hand you four identical resistors, each with the same resistance R, How many distinct arrangements can you find
Under the assumption that the actual acceleration is constant determine the number of times that the wheel rotates in the interval from the initial time to the final time.
A long straight metal wire of radius r1= 3.30E-2 m is bounded by a metalic cylindrical shell of inner radius r2= 1.39 E-1 m and outer radius r3= 1.84E-1 m.
A 16 cm x 16 cm square loop of wire lies in the xy-plane with its bottom edge on x-axis. The resistance of the loop is 0.490 ohms. A magnetic field parallel to the z-axis is given by B= 0.830 y^2 t, where B is in tesla, y in meters, and t in seconds...
Two parallel conducting plates are separated by 10.0 cm, and one of them is taken to be at zero volts. What is the voltage between the plates
a soccer ball is kicked from the ground with an initial speed of 18.0 ms at an upward angle of 46.3. a player 53.2 m
The drawing shows three identical springs hanging from the ceiling. determine the weight of the block hanging from the third spring
Some GRIN material is made in the form of a doughnut. The inside diameter (the diameter of the hole in the doughnut) is 34 cm, What should be the highest, and the lowest refractive index of the material
The battery charger for an MP3 player contains a step-down transformer with a turns ratio of 1:27, What voltage does the secondary coil of the transformer provide
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