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Two racing boats set out from the same dock and speed away at thesame constant speed of 80.9 km/h for half an hour (0.500 h), theblue boat headed 29.2° south of west, and the green boat headed39.6° south of west. During this half-hour (a)how much farther west does the blue boat travel, compared to the green boat, and (b) how much farther south doesthe green boat travel, compared to the blue boat? Express youranswers in km.
6.95-kg bowling ball moving at 10.0 m/s collides with a 1.60-kg bowling pin, Calculate the final velocity (magnitude and direction) of the bowling ball
Deuterium is a heavy isotope of Hydrogen with a nucleus containing one proton and one neutron. In the Balmer series n=4 goes to n=2 line in a hydrogen spectrum had a nearby weak neighboring line. What is the separation of wavelength of these lines? (..
The circuit in the figure below consists of wires at the top and bottom and identical metal springs in the left and right sides. estimate the magnitude of the magnetic field
An outfielder throws a 0.150 kg baseball at a speed of 42.0 m/s and an initial angle of 30.0°. What is the kinetic energy of the ball
A small town stores its drinking water in a tower. What should be the tower's height if the gauge pressure of the water in the town below is to be 5atm
Far in space, where gravity is negligible, a 480-kg rocket travelling at 95 m/s fires its engines. The figure shows the thrust force as a function of time. The mass lost by the rocket all through these 30s is negligible.
The graph of two cars that collide shows that they intersect at a point 5.5m on a distance/time graph. The first car has a velocity of 0.39m/s. what does the steepness of the slope indicate
A boxcar of mass 5.32 x 10^4 kg is rolling south at 3.49 m/s when it collides and couples with another boxcar that is rolling north at 5.12 m/s. Find the mass of the boxcar
after completing the calculations below sketch the ph curve for the titration of 25.0 ml of 0.200m solution of a weak
A 2.70-kg object is moving in a plane, with its x and y coordinates given by x=7t^2-3 and y=2t^2+3, Find the magnitude of the net force acting on this object at t=1.60s
A 2.97-kg projectile is fired with an initial speed of 133 m/s at an angle of 28° with the horizontal. At the top of its trajectory, the projectile explodes into two fragments of masses 0.97 kg and 2 kg. At 3.87 s after the explosion, the 2-kg fragme..
Suppose you are accelerating at 3 m/s2. How far will you travel in this time and If you start from rest, how much time will it take to have a velocity of 96 m/s
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