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You are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball. The soccer ball is kicked at 48° from the edge of the building with an initial velocity of 20 m/s and lands 60 meters away from the wall. How tall is the building that the child is standing on?
Find the magnitude of the electron acceleration. Under an influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. When the drive force is shut off, the snowmobile coasts to a halt.
A box with a mass of 8 kg is lifted (without acceleration) through a height of 9 m, in order to place it upon the shelf of the closet.
Illustrate what tangential speed v must the bob have so that it moves in a horizontal circle with the string making an angle 19.0^circ with the vertical?
given an electrical circuit which consists of resistor and voltage sources, determine the current flows (i1,i2,i3, and i4) use the following values for the voltage and resistor sources: V1=20 volts V2=12 volts V3=40 volts, R1= 18 ohms R2= 10 ohms R3=..
A uniform plank of length 4.30 m and weight 226 N rests horizontally on two supports, with 1.10 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 437 N walk on overhanging part of the plank be..
A herd of wild horses races across the flat, open plains of the Great Basin in central Nevada. If the horses are running at 12.1 m/s at a compass heading of 286 degrees, illustrate what is the northward component of their velocity?
If the car is now at rest and the pendulum undergoes S.H.M. would its time be shorter of longer than that calculated in (b) explain your answer.
What are the two types of errors one encounters in experiments? Give an example of each, What does standard deviation of measured data tell you
Three resistors, 28, 48, and 80 ?, are connected in series, and a 0.53-A current passes through them, What is the equivalent resistance
A car travels due east with a speed of 32.0 km/h, The traces of the rain on the side windows of the car make an angle of 52.0° with the vertical, Find the velocity of the rain
A student (m= 75kg) falls freely from rest and strikes the ground. During the collision with ground, he comes to rest in a time of 0.040s.
A person is standing at the edge of the water and looking out at the ocean (see figure). The height of the person's eyes above the water is h = 1.8 m, and the radius of the Earth is R = 6.38 x 106 m. (a) How far is it to the horizon? In other word..
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