A car is moving with a speed of 32.0 m/s. The driver sees an accident ahead and slams on the brakes, giving the car a deceleration of 3.50 m/s2. How far does the car travel after the driver put on the brakes before it comes to a stop?
A) 4.57 m
B) 9.14 m
C) 112 m
D) 146 m
E) 292 m
D
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What is the maximum possible arc that can be subtended by a rainbow? (Consider all possible viewing geometries)
a. 180° c. 90° b. 360° d. 270°
Single-Slit Diffraction: The figure shows the resulting pattern when a single slit is illuminated by monochromatic light. The slit is 0.3 × 10-3 m wide and is illuminated by light of wavelength 506 nm. A diffraction pattern is seen on a screen 2.8 m from the slit. What is the linear distance on the screen between the first two diffraction minima on either side of the central diffraction maximum?
Fill in the blank(s) with the appropriate word(s).
A plane flying horizontally at a speed of 50 m/s and at an elevation of 160 m drops a package, and 2.0 s later it drops a second package. How far apart will the two packages land on the ground if effects of air resistance are negligible?
A) 100 m B) 160 m C) 180 m D) 320 m
A slide projector needs to focus the image of a 24.0-mm × 36.0-mm slide onto a square screen 1.50 m on each side
You want to fill the screen as completely as possible without any of the image falling beyond the screen. Due to space constraints in the projector, the slide must be placed 10.5 cm from the lens. (a) What magnification does the projector produce? (b) How far from the lens should the screen be placed? (c) What focal length projector lens is needed?