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A football is kicked with an initial speed of 10.2 m/s at an angle of 40.00 above the horizontal. It lands on the ground 2.12 s later. Determine the velocity of the football at the pinnacle of its trajectory.
A 1800 kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 6 m before coming into contact with the top of the beam, and it drives the beam 14.0 cm farther into the ground before coming to rest.
Determine the minimum angle of incidence for light traveling in flint glass in order to undergo total internal reflection from benzene. The indices of refraction respectively forflint glass and benzene are 1.66 and 1.5.
A ship on the surface of the ocean receives a sonar echo back from an underwater object. What is the distance of the object from the ship
The distance between two telephone poles is 55.55 m. When a 1.00 kg bird lands on the telephone wire midway between the poles, the wire sags 0.165 m. illustrate a free-body diagram of the bird.
An outside loudspeaker (considered a small source) emits sound waves with a power output of95W. Find the intensity level in decibels at that distance
A uniform metal rod, with a mass of2.9kg and a length of0.9m, is attached to a wall by a hinge at its base. Find the horizontal component of the force exerted on the rod by the hinge
A 87g arrow is fired from a bow whose string exerts an average force of 130N on the arrow over a distance of 80cm. Illustrate what is the speed of the arrow as it leaves the bow?
A whistle produces a sound wave of frequency of 500 Hertz. Determine what is the wavelength of this sound
Assume air resistance is negligible unless otherwise stated. Calculate the displacement and velocity at the following times for a ball thrown straight up with an initial velocity of 11.8 m/s. Take the point of release to be y0 = 0.
A low-power laser used in a physics lab might have a power of 0.55 mW and a beam diameter of 2.6 mm. Calculate the average light intensity of the laser beam
Aluminum has a density of 2.70 g/cm3. We would like to make aluminum foil that is 96 micrometers thick and 35.8 centimeter in width. find how many meters long of an aluminum foil can we make
A turtle ambles leisurely-as turtles tend to do-when it moves from a location with position vector r1,x = 1.01 m and r1,y = -2.99 m in a lettuce garden to another location, What are the components and the magnitude of the turtle\'s average velocity
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