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Given the initial velocity V1=2i+1j m/s of a moving object. It is subject to the acceleration A=1i+2j m/s^2 for a periodof 3 seconds. What is the object's final speed? Please include step by step solution with answer. Thank you!
Two vectors A and B have the similar magnitude of 100 N (they represent forces of equal strength). What is the magnitude of the resultant vector of A and B if they are parallel and pointing in opposite directions.
A distance away from a uniformly charged spherical object, the magnitude of the electric field is 575V/m and the electric potential is 3.50kV. (a) What is the distance to the center of the object? (b) What is the magnitude of the charge?
A light ray enters a glass slab at point A at an angle of 57.6° with respect to the surface normal and then undergoes total internal reflection at point B. What minimum value for the index of refraction of the glass can be inferred from this?
A flagpole of length 9 m and mass 35 kg is hinged at one end, where it is connected to a wall as sketched below. The pole is held up by a cable attached to the end. Find out the tension in the cable. (Assume the flagpole has an uniform mass distr..
A spherical ball of charge has radius R and total charge Q. The electric field strength inside the ball(r?R) is E(r)=Emax(r4/R4). Find an expression for the volume charge density ?(r) inside the ball as a function of r
Calculate the acceleration of the arrow in the bow.
Project Seafarer was an ambitious program to construct an enormous antenna, buried underground on a site about 10000 km2 in area. What would be the frequency of the radiations emitted
A steel wire strung between two supports is initially horizontal when there is no tension on it. When a 9.5 kg painting is hung on the wire, the wire makes a 25° angle to the horizontal, as shown. Illustrate what is the diameter of the wire?
If the 2 kg mass slides on a horizontal frictionless surface, what is the speed of the mass 4 kg while it has fallen a distance 0.4 m downward from its rest position.
An object, at the top of a very tall building, is released from rest and falls freely due to gravity. Neglect air resistance and calculate the distance covered by the object between times t1 = 5.57 s and t2 = 7.59 s after it is released.
A jet makes a landing traveling due east with a speed of 115 m/s. If the jet comes to rest in 13.0s, what are the magnitude and direction of its average acceleration.
How much energy must be added to a bowl of 125 popcorn kernels in order for them to reach a popping temperature of 175celsious? assume that their initial temperature is 21 celsious, that specific heat capacity of popcorn is 1650 j/kgcelsious, and ..
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