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Ms.smith is planning her classroom. She knows she has approximately 12 linear meters of available wall space. She likes to decorate around her chalkboards but she has different sizes of trim. She draws a scale drawing of her two chalkboards as shown. Use the ruler in your reference materials to mark necessary measurements to approximate in centimeters the length and width of the chalkboards. About how much smaller in meters is the perimeter of the small chalkboard than the large chalkboard.
Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +3q. Sphere B carries a charge of -q. Sphere C carries no net charge.
Suppose the mirror is convex. The distance between the image and the object is the same as in part (a), but the image is 0.500 the size of the object. Determine the focal length of the mirror
A bullet is fired horizontally with an initial velocity of 865 m/s at a target located 150 m from the rifle. How much time is required for the bullet to reach the target
Two police cars have identical sirens that produce a frequency of 560 Hz. Find the speed of the approaching police car
A roller-coaster car moves 198 ft horizontally and then rises 143 ft at an angle of 30° above the horizontal. It then travels 143 ft at an angle of 40° downward
A spaceship is coming directly toward you while you are in the international space station. You are told that the spaceship is shining sodium light. You have an apparatus that and resolve two closely spaced wavelengths if the difference is 0.55 nm. I..
An air molecule is moving at a speed of 450 m/s. How many meters would the molecule move during 7.00 ms (milliseconds) if it didn't collide with any other molecules.
what is the final equilibrium temperature of the system?
Suppose a bat uses sound echoes to locate its insect prey, 3.00 m away. What is the percent uncertainty does this cause for the bat in locating the insect
Using Einsteins formula
If unpolarized light of intensity l0 passes through an ideal polarizer, what is the intensity of the emering light
You have a 1.99-m-long stretched string with a mass of 19.5 g. When you oscillate the string at 440 Hz, Calculate the tension in the string
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