Physics, 21.12.2019 06:31 abbasaliza01
Aparticular star cluster contains stars all with the same apparent magnitude of +4. near the cluster (and at the same distance from the earth) is a single star with an apparent magnitude of +1. the star's brightness appears to be the same as the collective brightness of the entire cluster.
how many stars are in this cluster?
Answers: 1
Physics, 22.06.2019 10:20
Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)
Answers: 2
Physics, 22.06.2019 14:30
A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.
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Physics, 22.06.2019 19:30
Which describes increasing the efficiency of energy resource
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Physics, 23.06.2019 07:30
Adistance-time graph indicates than an object moves 100 m in 4 s and then remains at rest for 6 s. what is the average speed of the object?
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Aparticular star cluster contains stars all with the same apparent magnitude of +4. near the cluster...
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