The trip time taken by the box is 1.5 sec.
Explanation:
Given:
distance(d) = 30 m
Velocity(v) = 20 m/s
By using formula:
Velocity =
or, 20 =
or, time(t) =
∴ time (t) = 1.5 sec
Hence the the block took 1.5 sec to slide 30 m.
Answer:
Thus, astronomers can identify what kinds of stuff are in stars from the lines they find in the star's spectrum. This type of study is called spectroscopy. ... From spectral lines astronomers can determine not only the element, but the temperature and density of that element in the star.
Explanation:
Potential energy is to stored with in an object due to position and arrangement. Kinetic energy is to energy with in an object due its to movement with their motion.
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Since there are 3 links in the spring, the angel θ for
equilibrium of the spring is the angle where there are no nte motion of the
spring. It can be easily be solve by jus diving 360 by the number of links.
360/3 = 120 degree is the angle of equilibrium
Answer: this is true
Explanation: another one is if it is disproved