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A force of 1 N is the only horizontal force exerted on a block, and the horizontal acceleration of the block is measured. when the same horizontal force is the only force exerted on a second block, the horizontal acceleration is three times as large. what can you conclude about the masses of the blocks?
many masons base the cost for a job on the number of blocks the number of blocks they need to lay. doyel masonry
A certain metal with atomic mass 2.6 × 10?25 kg has an interatomic bond with length 2.5 × 10?10 m and stiffness 45 N/m. What is the speed of sound in a rod made of this metal
In each cycle of its operation, a refrigerator removes 17J of heat from the inside of the refrigerator, How much work per cycle is required to operate this refrigerator
A positively charged oil drop of mass 1.0 × 10-15 kg is placed in the region of a uniform electric field between two oppositely charged, What is the magnitude of the charge on the drop
The observer on the right, sees two final images. One image comes directly from the objet. The other images comes from the reflection of the object in the mirror. What is the focal length of the concave mirror
A proton moves at 1.0x10^7 m/s perpendicularly to a uniform magnetic field. Determine the magnitude and direction of the field
You cool a 130.0g slug of red-hot iron (temperature 745 ?C) by dropping it into an insulated cup of negligible mass containing 70.0g of water at 20.0 ?C. What is the final mass of the iron and the remaining water
What is the size of the smallest vertical plane mirror in which a 10 tall giraffe standing erect can see her full-length image? (Hint: Locate the image by drawing a number of rays from giraffe's body that reflect off the mirror and go to her eye.
In your lab is a steel vessel having a volume of 15.0L you charge the vessel with 2.00 moles of H2 and 1.00 moles of O2. What is the partial pressure of the hydrogen
A 5.0 g hollow plastic ball is attached by a thread to the bottom of a beaker. Determine the diameter of the ball
Use the binomial expansion to find an approximate expression
An object is placed 40cm in front of a concave mirror whose radius of curvature is 30am. Determine the location of the image and the magnification
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