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A water balloon is launched at a speed of 21 m/s and an angle of 36 degrees above the horizontal. The water balloon hits a tall building located 7 m from the launch pad. At what height above the ground level will the water balloon hit the building? Calculate the answer in meters (m) and rounded to three significant figures.
A baseball catcher moves his glove away from a 33.0m/s fastball as he catches it. how far does the glove move
Calculate the mass flow rate (in grams per second) of blood (? = 1.0 g/cm3) in an aorta with a cross-sectional area of 2.0 cm2 if the flow speed is 30 cm/s
A laser beam is traveling through an unknown substance. When it encounters a boundary with air, the angle of reflection is 22.4° and the angle of refraction is 40.0°. What is the index of refraction of the substance
A student applies a 1.5 Newton horizontal force on a box of weight 20 Newton at rest on the floor. The coefficient of static pressure is 0.3. Find the magnitude of the normal force acting on box
What is the kinetic energy of a 2,030 kg car that is traveling at 98.0 km/h? answer must be given in kJ, How much work was done to give the car this kinetic energy, assuming that the car starts from rest? Answer must be given in kJ and How much w..
A steady current of 1.5 A flows through a 3600 ohm resistor for 2 seconds. How many charges are flowing at any point in the wire during the 2 seconds
A positively charged oil drop of mass is injected into a region of uniform electric field between two oppositely charged, horizontally oriented plates spaced 16 cm apart. what is the magnitude of the charge on the drop
For the motion from the initial free until the piece of wood comes to rest, what is the total amount of work completed by friction.
A 150 g copper bowl contains 220 g of water, both at 200 degrees Celsius. Avery hot 300 g of copper cylinder is dropped into the water, causing the water to boil, with 5.00 g being converted to steam the final temperature of the system is loo degrees..
A spring with a spring constant of 251.9 N/m is compressed by 0.230 m. What is the speed of the ball bearing right after it loses contact with the spring
A 1.78 m long air column is open at both ends. The frequency of a certain harmonic is 828 Hz, and the frequency of the next-higher harmonic is 920 Hz. find out the speed of sound in the air column.
A skier approaches the base of an icy, frictionless hill with a speed of 10.7 . The hill slopes upward at 19.0 above the horizontal. Find the acceleration of this skier
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