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With a wooden ruler you measure the length of a rectangular piece of sheet metal to be 12 mm. You use micrometer calipers to measure the width of the rectangle and obtain the value 5.98 mm. Give your answers to the following questions to the correct number of significant figures. What is the ratio of the rectangle's width to its length?
After catching the ball, Sarah throws it back to Julie. However, Sarah throws it too hard so it is over Julie's head when it reaches Julie's horizontal position. What is the
The wings of some beetles have closely spaced parallel lines of melanin, causing the wing to act as a reflection grating. what is the first-order diffraction angle for green l
Light from a sodium lamp (lamda=589 nm) illuminates two narrow slits. The fringe spacing on a screen 150 cm behind the slits is 4.0 mm. What is the spacing (in mm) between th
You need to use your cell phone, which broadcasts an 828 MHz signal, but you're in an alley between two massive, What is the angular width, in degrees, of the electromagnetic
A diffraction grating with 610 lines per mm is illuminated with light of wavelength 520nm . A very wide viewing screen is 2.1m behind the grating. How many bright fringes ca
An electric vehicle starts from rest and accelerates at a rate of 2.4 m/s2 in a straight line until it reaches a speed of 14 m/s. How much time elapses from start to stop
A car traveling 56 km/h is 22.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.04 s later. What was the car's constant deceleration before im
The rectangle shown in Figure P3.57 has sides parallel to the x and y axes. The position vectors of two corners are A = 8.00 m at 50.0° and B = 12.0 m at 29.0°. Find the per
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