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In an experiment designed to measure the speed of light, a laser isaimed at a mirror that is 47.0 km due north. A detector is placed139 m due east of the laser. The mirror is to be aligned so that light from the laser refelects into the detector. (a) When properly aligned, what angle should the normal to the surface of the mirror make with due south?(b) Suppose the mirror is misaligned, so that theactual angle between the normal to the surface and due south is toolarge by 0.0020°. By how many meters (due east) will thereflected ray miss the detector?
q1. if you place a 0.0001-c charge halfway between the terminals of a common 9-v battery 5 mm apart what force will
32 violins playing simultaneously with the same intensity combine to give an intensity level of 82 dB. a) What is the intensity level of each violin? (b) If the number of violins is increased to 64, will the combined intensity level be more than, les..
A trolley that moves along a horizontal beam is acted upon by two forces as shown. (a) Knowing that a 5 25°, determine by trigonometry the magnitude of the force P so that the resultant force exerted on the trolley is vertical. (b) What is the cor..
In an engine, a piston oscillates with simple harmonic motion so that its position varies according to the expression, x = 8.00 cos 3t + ? 4 where x is in centimeters and t is in seconds. (a) At t = 0, find the position of the piston.
David is driving a steady 21.0 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 at the instant when David passes. How far does Tina drive before passing David.
If you stand on a bathroom scale, the spring inside the scale compresses 0.80mm , and it tells you your weight is 680N. what does the scale read at its peak
How various kilograms of nitrogen are boiled away in time of 7.50 h. car that hits a line of water barrels and takes 1.8s to stop.
Two particles each weigh 1.04 N. Find the magnitude of their mutual gravitational force when they are separated by a distance of 20.3 cm
Estimate the wavelength of the light.
Some thermometers indicate temperature by means of the thermal expansion of alcohol. by what percent does the volume change if the temperature changes by 9 F
Draw a free body diagram for each situation and find the magnitude of the larger of the two individual forces in units of N. Find out the magnitude of the smaller of the individual forces in units of N.
A 5.5 ohm resistor, a 11.3 ohm resistor and a 11 ohm resistor are connected in series with a 36 V battery. If the resistors are instead connected in parallel across the battery, what is the equivalent resistance
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