To create a computer network, you must have at least two computers. ... A protocol is a standard set of rules and procedures for the control of communications in a network. TRUE. Two computers using TCP/IP can communicate even if they are based on different hardware and software platforms. So your right :)
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Answer:
Number of cycle per minute = 75
Explanation:
given data
Power output Wnet = 10 KW
Temperature of hot reservoir = 1500 K
Temperature of cold reservoir = 300 K
solution
we know that Efficiency is express as
n = 1 - To ÷ Tk ...............1
here Tk is Temperature of hot reservoir and To is Temperature of cold reservoir
so put here value in equation 1 we get
n = 1- 300 ÷ 1500
n = 0.8
and Rate of heat input will be
Rate of heat input Qin = 10 × No. of cycles per sec
Rate of heat input Qin = 10 n
and
n = Wnet ÷ 10 n .......................2
put here value
0.8 = 10 ÷ 10 n
solve it we get
n = 1.25
so here Number of cycle per second is = 1.25
and Number of cycle per minute will be = 1.25 × 60
Number of cycle per minute = 75
Answer:
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Explanation:
Answer: 139 Km.
Explanation:
The question tells us that a planet A has an orbit period of 10 years and its circular orbit has a radius of 106 Km, whilst a planet B has an orbit period of 15 years (also assuming a circular orbit), both orbiting a nearby star.
This information allow us to use the Kepler's 3rd law, for the special case in which the orbit is circular.
Kepler's 3rd law, tells that there exist a direct proportionality between the square of the orbit period, and the cube of the orbit radius (in the more general case, with the cube of the semi-major axis of the elipse), for celestial bodies orbiting a same star.
(like Earth and Mars orbiting Sun).
So, for planet A and planet B (orbiting a same star), we can write the following:
(TA)²/ (TB)² = (rA)³ / (rB)³
Replacing by TA= 10 years, TB= 15 years, rA= 106 Km, and solving for Rb, we get RB= 139 Km.
