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An object is placed 30 cm from a concave spherical mirror with a radius of curvature of 40 cm. which of the following describes the image?
1) Virtual and located at infinity from the mirror
2) Real and located 60 cm from the mirror
3) Real and located 120 cm from the mirror
4) Virtual and located 60 cm from the mirror
5) Virtual and located 120 cm from the mirror
An object is placed 13 cm in front of a concave mirror whose focallength is 17 cm. The object is 3.7 cm tall. Determine(a) the location of the image, taking a real imageas a positive value and a virtual image as a negative value.
Discover the resolving power of a grating needed to separate the sodium-D spectral lines, which are at 588.9 nm and 589.1 nm. How many lines should the grating have to achieve this resolution in third order? (This is a very low resolution in terms of..
A spacecraft is 110 km above the surface of the moon. What is the velocity of the spacecraft
A performer, seated on a trapeze, is swinging back and forth with a period of 8.10 sec. find the new period of the system
A 6.30 x 10 -5 H solenoid is constructed by wrapping 54 turns of wire around a cylinder with a cross-sectional area of 6.4 x 10-4 m2. Determine the change in the length of the solenoid
A uniform 1.7-kg rod that is 0.97 m long is suspended at rest from the ceiling by two springs, one at each end. Both springs hang straight down from the ceiling. The springs have identical lengths when they are unstretched. Their spring constants are..
an experiment measures the speed of a 250-kilogram motorcycle every 2 seconds. the motorcycle moves in a straight
A ray of light is incident from the air onto the surface of a diamond (n=2.42) at a 30 degree angle to the normal, calculate the speed of light in the diamond
Two trains are moving in opposite directions on parallel tracks and are approaching a station. What is the speed of the other train if an observer at the station hears a beat frequency of 4.4Hz
Explain how would the results have differed in this experiment if the pulley and of the track was lower that the other end of the track?
The lowest outdoor temperature ever recorded on Earth was %u2212128.6 %u25E6F, recorded at Vostok Station, Antarctica, in 1983. What is this temperature on the Kelvin scale
The pilot of an airplane traveling 180 km/h wants to drop supplies to flood victims isolated on a patch of land 150 m below. The supplies should be dropped explain how many seconds before the plane is directly overhead?
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