Physics, 21.12.2019 06:31, Xlhoncho45
Aquarterback throws a football with an initial velocity v at an angle θ above horizontal. assume the ball leaves the quarterback’s hand at ground level and moves without air resistance. all portions of this problem will produce algebraic expressions in terms of v, θ, and g. let the origin of the cartesian coordinate system be the ballʼs initial position.
(a): write an expression for the magnitude of the football’s initial vertical velocity v0y.
(b): find an expression for the magnitude of the football’s initial horizontal velocity v0x.
Answers: 2
Physics, 21.06.2019 22:30, ceceshelby646
Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.
Answers: 1
Physics, 22.06.2019 14:30, val926
When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell
Answers: 2
Physics, 23.06.2019 01:30, alsafy383
Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? round your answer to the nearest tenth. s how far will the football travel before it lands? round your answer to the nearest tenth. m
Answers: 3
Aquarterback throws a football with an initial velocity v at an angle θ above horizontal. assume the...
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