A 1Msun star in a closed binary system with a 2Msun star.
Systems in which the two stars are close to each other are called close binary star system.
The most massive stars have the shortest lifespans. The reason is that they have most fuel, they burn it so enormously that their lifetimes are very short. As a 1Msun star in a closed binary system with a 2Msun star becomes the massive star so it has the shortest life expectancy.
a. No, an isolated 1Msun star has not the shortest life expectancy.
b. No, a 1Msun star in a closed binary system with a 0.8Msun star has not the shortest life expectancy.
c. Yes, A 1Msun star in a closed binary system with a 2Msun star has the shortest life expectancy.
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Answer:
B transferred.
Explanation:
The kinetic energy is simply transferred by transforming it into other forms of energy.
According to the law of conservation of energy "energy is neither created nor destroyed but transformed from one form to another".
- The moving baseball posses kinetic energy
- As it hits the bat, it is converted to mechanical and thermal energy.
- The bat warms up due to the transfer of the kinetic energy.
- The mechanical energy of the bat cause work to be done on it and it breaks apart.
- This ensures that the energy in this process is conserved.
Answer:
along the lead, at right angles to the lead at the middle, and at right angles to the lead at one end.
-- the characteristics of the medium through which it's moving
(tells you the speed of the wave)
then
-- the direction in which it's moving, together with the speed,
tells you the velocity of the wave.
Answer:
1.825m/s
Explanation:
Using the law of conservation of momentum which says that momentum before collision is equal to sum of momentum after collision.
m1u1+m2u2 = (m1+m2)v
m1 and m2 are the masses
u1 and u2 are the initial velocities
v is final velocity of the two bodies after collision
Substitute the given parameters into the formula
55(2.5)+45(1) = (55+45)v
137.5+45 = 100v
182.5 = 100v
v = 182.5/100
v = 1.825m/s
Hence their final speed is 1.825m/s