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A football is kicked such that is has an initial velocity of 30 m/s at an angle of 60 degrees above the ground. How would you calculate its maximum height?
a child tosses a stick into a stream. the stick moves downstream at a rate of 1.5 ms. how fast is the stick moving
Two loudspeakers emit 500Hz notes. One speaker sits on the ground. The other speaker is in the back of a pickup truck, What is the truck's speed
A certain lightbulb has a tungsten filament having a resistance of 16 ? at 22°C and 155 ? when hot. Find the temperature of the filament when it is hot
Two boats start together and race across a 62-km-wide lake and back. Boat A goes across at 62 km/h and returns at 62 km/h. Boat B goes across at 31 km/h, and its crew, realizing how far behind it is getting, returns at 93 km/h.
An object undergoes simple harmonic motion with a period of 0.015 s, and an amplitude of 1.2E-2 m. What's the fastest the object travels during its motion
A 18.0 kg block is being pushed up a ramp by a force FP = 150 N acting horizontally. Determine the work done on the block by the frictional force
Assume that it takes 2.30 kg of oxygen to burn 1.00 kg of coal. (The actual amount varies with the type of the coal). What is the total mass of the reagents used in the combustion all through the 30 days.
You are designing the section of a roller coaster ride, calculate the minimum radius for the semi-circular hump
In her bathroom, Mindy has an overhead heater that consists of a coiled wire made of nichrome that gets hot when turned on. The wire has a length of 2.2 m when it is uncoiled. What current does the wire carry
The total mass of the decay products is less than the mass of the original 294Uus atom and what accounts for this missing mass
A 27.0 g copper ring at 0°C has an inner diameter of D = 3.04591 cm. A hollow aluminum sphere at 87.0°C has a diameter of d = 3.05180 cm. What is the mass of the sphere
A thin, 70.0g disk with a diameter of 7.50cm rotates about an axis through its center with 0.270J of kinetic energy
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