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Solve the all parts of given question:
Question: A small rock is thrown from the roof of the building with a speed of 20 m/s at an angle of 37 degrees above the horizontal. The rock strikes the ground 3.5 s after it is thrown.
Part I: What is the horizontal distance from the base of the building to the point where the rock strikes the ground?
Part II: What is the height of the building?
Part III: What is the magnitude of the resultant velocity of the rock ( the rock's speed) just before it strikes the ground?
Please write the step and answer.
What is the magnitude of the force (in N) the second child must exert to keep the door from moving? Assume friction is negligible.
Three equal point charges, each with charge 1.25%u03BCC , are placed at the vertices of an equilateral triangle whose sides are of length 0.250m. What is the electric potential energy U of the system
A horizontal board weighing 232.0 Nis supported at points A and B in the figure below. The plankserves as a platform for a painter, who weighs 571.0 N. Find the maximum distance D, such that the plank will not tip, no matter where the painter stands...
The average atmostpheric pressure Po on the surface of Mars is 6.0hPa. The radius of the planet is r = 3400 km. The acceleration dueto gravity is 3.7m/s^2. Compute the total mass M of the Martianatmosphere. Express M is Kg
A proton with the mass m is projected into a uniform electric field that points vertically upward and has magnitude E. The initial velocity of the proton has a magnitude v_0 and is directed at an angle \alpha below the horizontal. A)Find the numerica..
a 63-kg water skier is pulled up a 14.0 degree incline by a ropeparallel to the incline with a tension of 512 N. find the magnitude and direction of the skier's acceleration
The top of a swimming pool is at ground level. If the pool is2.20 m deep, how far below ground leveldoes the bottom of the pool appear to be located for the following conditions?
A typical adult human lung contains about 310 million tiny cavities called alveoli. Estimate the average diameter of a single alveolus
A corner construction lot has the shape of a right triangle. If the two sides perpendicular to each other are 38m long and 40.3m long
A soldier has a huge contraption that notches a large 4 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the arrow
A pitcher pitches a baseball of mass 0.20 kilogram. The baseball arrives at home plate with a speed of 40 m/s and is batted directly back to the pitcher with a return speed of 50 m/s. Obtain the magnitude of the change of momentum of the ball
A large disk of mass Md and radius R is spinning in a horizontal plane about a vertical axis through its center with a given angular velocity of omega. Find the final angular velocity of the disk
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