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f1 is 30 degrees above x axis. f2 is 15 degrees below x axis and 1500n. f3 is 15 plus 35 degrees below xaxis. x axis is as per normal 90 degrees.Three cables are used to drag a heavy crate on a horizontal surface as shown in Figure 1(b). The resultant of these three forces has a magnitude of 2500 N and its line of action is directed along the x axis. Determine the magnitudes of forces F1 and F3.
There are two light bulbs in a circuit, powered by one battery. One light bulb is a 100 watt light bulb and the other a 200 watt light bulb. How much power must the battery be supplying for the lights to be running at full power?
An asteroid has acquired a net negative charge of 119 C from being bombarded by the solar wind over the years, and is currently in equilibrium whereby it expels electrons at the same rate as it acquires them. How many more electrons does it have than..
the voltage across a capacitor is given by the formula vqc where q is usually called the charge on the capacitor. where
A person stands on the edge of a roof 490m above the ground and throws a stone horizontally with an initial speed of 15 m/s. Neglecting air resistance. find (a) the time taken by the stone to reach the ground. and (b) the speed with which it hits the..
A telephoto lens with focal length of 120mm has f-numbers ranging from f/2.8 to f/22, What is the diameter of the lens aperture at f/2.8? in millimeters
A mass m = 14 kg rests on a frictionless table and accelerated by a spring with spring constant k = 5209 N/m. The floor is frictionless except for a rough patch, What is the length of the rough spot
A woman walk up a flight of stairs. The gain in her gravitational potential energy is U, and her power output isP. what's her gain in potental energy
How many turns of wire would be required to make a 120-mH inductor out of a 28.0-cm long air-filled solenoid with a diameter of 5.9cm
the position of an object is given as a function of time as xt -3.00 mst 1.00 ms2t2. what is the average speed of the
Find the force exerted by reflecting sunlight off a reflecting aluminum sheet in space if the area normal to the sunlight is 5000 m^2 and the solar intensity is 2500 W/m^2
Auto companies frequently test the safety of automobiles byputting them through crash tests to observe rge integrity of thepassenger compartment. with what average force is it brought to rest
What is the largest index of refraction that the liquid can have, such that none of the light is transmitted into the liquid and all of it is reflected back into the solid
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