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inysia [295]
3 years ago
7

Cosmic Microwave Background radiation is one piece of supporting evidence for the Big Band Theory. Are these microwaves at the l

onger or shorter end of the spectrum?
are they long or short?
Physics
1 answer:
dolphi86 [110]3 years ago
3 0

Answer:

it is long.

Explanation:

I know the answer but I don't know how to explain it

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Waves that can travel only through a medium are called ______________ waves. Sound waves are ______________ waves. (Hint: same w
Nana76 [90]
First blank is radiator

Second blank is radiator
6 0
3 years ago
A person jumping out of speeding bus goes forward why?​
kobusy [5.1K]

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gravity because its gravity and you fall and die

4 0
3 years ago
One particle has a charge of -1.87 x 10-9 C, while another particle has a charge of -1.10 x 10-9 C. If the two particles are sep
bogdanovich [222]

Answer:D 7.41 x 10-6 N

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5 0
3 years ago
A 100-kg tackler moving at a speed of 2.6 m/s meets head-on (and holds on to) an 92-kg halfback moving at a speed of 5.0 m/s. Pa
DIA [1.3K]

Given that,

Mass of trackler, m₁ = 100 kg

Speed of trackler, u₁ = 2.6 m/s

Mass of halfback, m₂ = 92 kg

Speed of halfback, u₂ = -5 m/s (direction is opposite)

To find,

Mutual speed immediately after the collision.

Solution,

The momentum of the system remains conserved in this case. Let v is the mutual speed after the collision. Using conservation of momentum as :

m_1u_1+m_2u_2=(m_1+m_2)V\\\\V=\dfrac{m_1u_1+m_2u_2}{(m_1+m_2)}\\\\V=\dfrac{100\times 2.6+92\times (-5)}{(100+92)}\\\\V=-1.04\ m/s

So, the mutual speed immediately after the collision is 1.04 m/s but in opposite direction.

3 0
4 years ago
In space movies, spacecrafts explode and oxygen is needed for a fire to start. Why is it wrong? What would really happen?
Triss [41]

Answer:

Hey

The reason these "space movies" are wrong is because objects in "space" (not in a "space" craft) can't catch on fire because there is no air in "space".

6 0
3 years ago
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