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A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.30 m/s at an angle of 23.0° below the horizontal. It strikes the ground 3.00 s later.
(a) How far horizontally from the base of the building does the ball strike the ground?
(b) Find the height from which the ball was thrown.
(c) How long does it take the ball to reach a point 10.0 m below the level of launching?
At time t1 = 2.00 s, the acceleration of a particle in counterclockwise circular motion is (1.00 m/s2) i + (6.00 m/s2) j. What is the radius of the path taken by the particle
A +5.7 uC point charge is onthe x-axis at x = -3.0 m, and a = 2.0 uC point charge is on thex-axis at x = +1.0 m. Determine the net electric field (magnitude and direction) on the y-axis at y = +2.0 m.
how is the e field of a em wave changed by vertical polarisation in terms of the general equation for electric field ie
An object of heat capacity 100 cal/C is initially at 30.0C. Estimate the resulting entropy change of the universe
you push with a horizontal force of 56.0 against a 25.0 box pressing it against a rough wall to hold it in place. the
A paperweight, when weighed in air, has a weight of W = 14.2 N. When completely immersed in water, however, it has a weight of Win water = 10.5 N. Find the volume of the paperweight.
Smoke particles in the air typically have masses of the order of 10^-16 kg. Find the root-mean-square speed of Brownian motion for a particle with a mass of 3.00 x 10^-16kg in air at 300K
A wire 25.1 m long and 6.00 mm in diameter has a resistance of 15.0 m. A potential difference of 28.0 V is applied between the ends. Calculate the resistivity of the wire material
q1. what is the magnitude of an objects average velocity if an object moves from a point with coordinates x 2.54 m y
A uniform plank of length 5.70 m and weight 215 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support. To what distance x can a person who weighs 452 N walk on the overhanging part of the plank before it just be..
A 208.3 gram pendulum bob on a 1.92 meter long string is pulled to a height above its lowest position such that it makes an angle of 19.0 degrees with the vertical. Determine the speed of the pendulum bob
Consider a container with a partition in the middle. The container is thermally isolated from the environment. Initially one half of the container is filled with gas A (N molecules) and the other half with gas B (also N molecules).
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