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Point A is at position (4j -3k)cm. Point B is at position -3cm k. Point C is at position (3i -2j + 5k) cm. Point D is at position 4cm j. Assume there is a 1-C charge on the moon, and you have accumulated a net charge of 1 C in your laboratory. To one significant digit, how big is the moon charge's electrical force on your lab's charge? (look up moon Distance) e=1.6x10^-19 C k=9x10^9N m^2/C^2
A student is about to do a push-up. Her center of gravity lies directly above P on the floor, which is 0.9 m from her feet and 0.5 m from her hands. what is the force exerted by the floor on her hands
A metallic, spherical Christmas tree ornament has a diameter of 16.00 cm. find where will he see his reflection in the mirror
A large storage tank, open to the atmosphere at the top and filled with water, Determine the speed at which the water leaves the hole
A warning buoy is observed to raise every 5.0 s as crests of waves pass by it. What is the period of these waves
A ball is launched from a height of 7.94 ft above the ground with a speed of 16.95 m/s at an angle of 34.48 degrees from the horizontal
A refrigerator has a coefficient of performace of 2.10. In each cycle it absorbs 20000J of heat from th ecold reservoir. how much heat is discarded to the high-temperature reservoir
A vessel whose walls are thermally insulated contains 2.3 kg of water and 0.35 of ice, all at the temperature of 0.0 . The outlet of a tube leading from a boiler in that water is boiling at atmospheric pressure is inserted into the water. How many..
The spring shown in the figure is compressed 50 cm and used to launch a 100 kg physics student. How far up the incline does the student go
A 60 skydiver can be modeled as a rectangular "box" with dimensions 21 41 1.8. What is his terminal speed if he falls feet first
An automobile accelerates from rest a 2.0 m/s2 for 20s.The speed is then held constant for 20 s, after which there is anacceleration of -3.0m/s2 until the automobilestops. What is the total distance traveled?
A 1.8--tall object is 22 to the left of a lens with a focal length of 11 . A second lens with a focal length of 48 is 54 to the right of the first lens. find the distance between the image and the second lens
Compute gauge pressure of the flowing water
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