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A man throws a rock from the top of a cliff that is 50.0 m above ground level with an initial speed of 27.0 m/s at an angle of 28.0° above the horizontal.
a) Determine the time it takes for the rock to hit the ground below the cliff.sb) Determine the horiztonal distance that the rock travels.kmc) At the instant just before the rock hits the ground below the cliff, find the horizontal and the vertical components of its velocity. (Take up and to the right as positive directions.) horizontal m/svertical m/sd) What is the the magnitude of the velocity of the rock just before it hits the ground?m/se) What is the angle made by the velocity vector of the rock just before it hits the ground?° (below the horizontal)f) Find the maximum height above the cliff top reached by the rock.m
You want to photograph a circular diffraction pattern whose central maximum has a diameter of 1.1. How far behind the pinhole should you place the viewing screen
A 5.0-kg projectile is fired over level ground with a velocity of 200.0 m/s at an angle of 30.0 degg above the horizontal. Over the entire trip the work done by the air forces is
Squids and octopuses propel themselves by expelling water. They do this by taking the water into a cavity and then suddenly contracting the cavity, How much kinetic energy does the squid create for this escape maneuver
The far point of an eye is 255 cm. A corrective lens is to be used to allow this eye to focus clearly on objects a great distance away. What is the power of the needed corrective lens in diopters
A ball with a horizontal speed of 1.25m/s rolls off a bench 1.00m above the floor. How long will it take the ball to hit the floor
A guitar string has a tension on it of 6500 N and length of 1.2 m. what is the linear mass density of the string
A playground carousel is free to rotate about its center on frictionless bearings, and air resistance is negligible. What is the person's mass
A red laser pointer with a wavelength of 635 nm is shined on a double slit producing a diffraction pattern on a screen that is1.75m behind the double slit. The central maximum of the diffraction pattern has a width of4.30cm, and the fourth bright spo..
A woman using a rocket pack hovers near a balcoy. The mass of the woman with gear is 100 kg and her tanks hold 50 kg of rocket fuel. What rate of fuel consumption is required for hovering
As you get ready for your early morning physics class, you comb your hair in front of a planar mirror. How far away from you is your image
1. identify three specific challenges to making direct measurements in the fields of astronomy chemistry physics or
An astronaut is traveling in a space vehicle that has a speed of 0.515c relative to Earth. The astronaut measures his pulse rate at 69.0 per minute. What pulse rate does the Earth observer measure
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