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2. A cannon fires a cannonball from the top of a wall at a speed of 23.07 m/s and an angle of 19.56 degrees from the horizontal. A cannonball that was accidentally dropped from the top of the castle hits the water below in 2.11 s. What is the horizontal distance from the wall where the fired cannonball hits the ground?
A 0.38-kg cord is stretched between two supports,7.6m apart. When one support is struck by a hammer, What is the tension on the cord
You calculated a value of 0.49 s ± 0.04 s for the time constant from your graph. If you used a 1M?, what is the equivalent capacitance of your circuit
four charges, q1=1.5 nC, q2=4nC, q3=20nC and q4=-1nC are placed so that q4=(0,0) q1 is north of q4 and .5m away q2 is east of q4 and 1.0m away q3 is SW of q4 at angle of 36.9 degrees
Three deer, A, B, and C, are grazing in a field. Deer B located 64.00 m from dear A at an angle of 50° north of west. Deer C is located 76° north of east relative to dear A. The distance between deer B and C is 93m. What is the distance between de..
The work function for Zinc is 4.31 eV. Find the cutoff wavelength for zinc and what is the lowest frequency of light incident on zinc
assume a spherical planet P has a uniform density of 4.72*10^3 kg/m^3 and a radius R=3604 km. For a parcel that weighs 64 N on the surface of the (spherical) earth.
A proton is released from rest at the positive plate of a parallel-plate capacitor, What will be the proton's final speed if the experiment is repeated with double the amount of charge in each capacitor plate
A new General Electric kitchen stove has a mass of 68kg and the dimensions. The stove comes with a warning that it can tip forward if the person stands or sits on oven door when it is open.
Calcium has a work function of 2.8 eV. If light of frequency 4.3 1015 Hz strikes the surface of calcium, what is the energy of the ejected electrons
A 1.20 liter flask contains a certain quantity of ideal gas at 305 K. after that an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.30 times its unique value. What is the final temperature.
The drawing shows a block at rest on an incline. What is the static frictional force that acts on the block
A 2100 kg car traveling to the right at 32m/s is chasing a second car of the same mass that is traveling to the right at 10m/s.
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