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Q1. Two ants race across a table 62 cm long. One travels at 4.77 cm/s and the other at 2 cm/s. When the first one crosses the finish line, how far behind is second one. What am I trying to solve for distance, speed, or time?
Q2. An airplane is flying with a velocity of 242 m/s at an angle of 30.0° with the horizontal, as the drawing shows. When an altitude of the plane is 2.50 km, a flare is released from the plane. The flare hits the target on ground. What is the angle θ?
Q3. A football is kicked at ground level with a speed of 10 m/s at an angle of 31.0° to the horizontal. How much later does it hit the ground?
Find the work function of the emitting surface and the wavelength of the second source. Determine the net work done on the piano.
A person's prescription for her new bifocal glasses calls for a refractive power of -0.461 diopters in the distance-vision part, & a power of +1.83 diopters in the close-vision part. Compute the near & far points of this person's uncorrected visio..
How much work should Denise do to drag her basket of laundry of mass 6.0 kg a distance of 3.0 m along a floor, if the force she exerts is a constant 50.0 N at an angle of 70.0° with the horizontal.
If a 200 N force F1 is applied to the piston with the 4 cm diameter, Calculate the magnitude of the force F2 that can be resisted by the piston with the 10 cm diameter? Ignore the weights of the pistons.
Draw a picture of a moving source and the waves surrounding it according to what you observed in this experiment. How does the spacing of the wavefronts in front of the source compare to those behind it?
Problem on elevator
A train is travelling up a 4.5 degree incline at a speed of 3.25 m/s when the last car breaks free and begins to coast without friction. a) How long does it take for the last car to come to rest momentarily? b) How far did the last car travel befo..
An aging coyote cannot run fast enough to catch a roadrunner. He purchases on eBay a set of jet-powered roller skates, which provide a constant horizontal acceleration of 15.0 m/s2. The coyote starts at rest 70.0 m from the edge of a cliff at the ins..
An automobile tire has a radius of 0.330 m, and its centre moves forward with a linear speed of v= 15.0 m/s. Find the angular speed of the wheel.
Find the gage pressure at the center of pipe A in pounds per square inch and in kilopascals.
An 82 kg parachutist descends through a vertical height of 350 m with constant speed. Find out the increase in entropy produced by the parachutist; assume the air temperature is 21 degrees C.
A proton is travelling to the right at. It has a head-on perfectly elastic collision with a carbon atom. The mass of the carbon atom is 12 times the mass of the proton. What are the speeds of each after the collision? What is the direction of the pro..
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