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Question: A ball is thrown upward at a velocity of 19.6 m/s. What is its velocity after 3.0 s, assuming negligible air resistance?
I know the correct answer for above question but explain how to get this answer! Thanks.
A converging lens with a focal length of 88.5 centimeter forms an image of a 3.50 centimeter tall real object that is to the left of the lens. Find where are the object and image placed in relation to the lens
Four objects are situated along the y axis as follows: a 2.07 kilogram object is at +2.92 meter, Find where is the center of mass of these objects
Circular Coils and Flux A circular coil has a10.3 cm radius and consists of44.0 closely wound turns of wire. An externally produced magnetic field of 3.00mT is perpendicular to the coil. If no current is in the coil, what magnetic flux links its turn..
A radio station broadcasts with a frequency of 1000 kHz with apower of 89 kW. How many photons per second does the antenna emit
How long does it take for a particle to travel 11.0 m if it begins from rest and accelerates at 1.0 m/s^2? How far dose the car 5 min if its average velocity is 80 km/h through this time interval?
an iron wire has a cross-sectional area of 1.01 x 10-5 m2. carry out steps a through e to compute the drift speed of
A constant force of 25 N is applied as shown to a block which undergoes a displacement of 7.5 m to the right along a frictionless surface while the force acts. What is the work done by the force
Huge amounts of radioactive 131/53 I were released in the accident at Chernobyl in 1986. Write down the reaction for the beta decay of 131/53I
A bullet with mass 4.85 g is fired horizontally into a 2.040-kg block attached to a horizontal spring, Find the initial speed of the bullet-block system
In a Young's double slit experiment, the slit separation is made to be exactly 4?. At what angle will the third bright fringe to the side of the central fringe occur? Caution: the angles involved are such that the approximation sin? is not valid.
Standing at a crosswalk, you hear a frequency of 520 Hz from the siren of an approaching ambulance. After the ambulance passes, the observed frequency of the siren is 455 Hz. Determine the ambulance's speed from these observations.
A disc with a radius of 12cm and a mass of .4kg is free to rotate about an axle through its center. calculate the angular acceleration of the disk
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