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If a ball is dropped from a cliff with an initial velocity of 25m/s, with a direction of 40 degrees out from the y axis and takes 3.75 seconds to hit the ground, find: a) height of the cliff b) how far the ball lands away from the cliff c) velocity of the ball just before it hits the ground
two trains face each other on adjacent tracks. they are initially at rest and their front ends are 36 m apart. the
Two concentric hollow metal spheres have radii r1=1.50E-2 m and and r2=6.80E-2 m. At a point 9.80E-2 m from the center of the spheres, the electric field is directed outward and has a magnitude 2.08E+2 N/C. At a distance 5.80E-2 m from the center,..
a typical cost for electric power is 12.0 per kilowatt-hour. a some people leave their porch light on all the time.
The highest recorded waterfall in the world is found at Angel Falls in Venezuela. Its longest single waterfall has a height of 807 m. what is the maximum temperature of the water
Find out the maximum height that the rocket reaches (neglecting air resistance) when the fuel is exhausted.
A uniform electric field exists in the region between two oppositely charged parallel plates 1.67cm apart, Find the speed of the proton at the moment it strikes the negatively charged plate
Suppose you are driving a car around in a circle of radius 182 ft, at a velocity which has the constant magnitude of 33 ft/s. What angle (in degrees) will the string make with the vertical
The drag force on an object depends on the dimensionless drag coefficient, the density of air, the object velocity, and the frontal area of the object. By only considering units obtain a relation for the drag force
A person jumps from the roof of a house 3.6-m high. When he strikes the ground below, Find his velocity just before his feet strike the ground
An infinitely long line of charge has a linear charge density of 5.00×10^?12 C/m. How close does the proton get to the line of charge
24.0g of copper pellets are removed from a 300 ? C oven and immediately dropped into 120mL of water at 24.0 ? C in an insulated cup. What will the new water temperature be
Two 10.0 cm -diameter electrodes 0.52 cm apart form a parallel-plate capacitor. What is the electric field strength inside the capacitor after insulating handles are used to pull the electrodes away from each other until they are 1.3 cm apart
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