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A ball is kicked with initial velocity of 14.9 m/s in the horizontal direction and 15.7 in the vertical direction.
a) At what speed does the ball hit the ground?
b) what maxium height in attained by the ball?
A particle with a charge 3.2 x 10^-19 C is moving at a speed of 5x10^7 m/s that makes an angle of 40 degrees with respect to a uniform magnetic field B, Determine the magnetic field strength B
Light of intensity 2.5W/m2 passes through the pupil of one of your eyes and eventually falls on your retina. The radius of the pupil is controlled by the iris.
As part of a safety investigation, two 1700 cars traveling at 18 are crashed into different barriers. Find the average forces exerted on (a) car that hits a line of water barrels and takes 1.80 to stop, and (b) car that hits a concrete barrier and t..
Calculate the potential energy of a rock with a mass of 55 kg while sitting on a cliff that is 27 m high.
You travel to an alien planet. The local population tries very hard to tell you what gravity is on the surface. You cannot understand them, and do not have a tool to calculate gravity directly. You also ran out of water. They offer a liquid to you, o..
The atronomer was studying the moon of jupiter called lo. He noticed that measurements taken in the spring when used to predict the position of lo in the fall were off by 18.177 minutes of time. determine the value of the speed of light that Roemer..
In what ways is the transducer in medical ultrasound a 'speaker' & 'microphone?', What is the broadest definition of a 'transducer?'
A charge of -5 micro-coulombs is placed at x = 0 cm, y = 0 cm. Another charge of -5 micro-coulombs is placed at x = +22 cm, y = -50 cm. When measured counter-clockwise from the x axis, what angle is the electric force vector acting on the charge a..
Two point charges lie along the y-axis. A charge of q1 = -9.5 ?C is at y = 6.0 m, Locate the point (other than infinity) at which the total electric field is zero
Block A in Figure is given an initial velocity of 6 m/s up the incline. Declare of a block on a inclined plane.
A sample of wood from an archaeological excavation is dated by using a mass spectrometer to measure the fraction of 14C atoms. What is the wood's age
A cube of ice is taken from the freezer at -8.7 C and placed in a 111 g aluminum calorimeter filled with 315 g of water at room temperature of 20.0 C, What was the mass of the ice cube
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