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dimaraw [331]
3 years ago
14

The discovery of cosmic microwave background radiation and primordial helium gas was scientific evidence supporting the _____.

Physics
2 answers:
damaskus [11]3 years ago
7 0
<h3><u>Answer;</u></h3>

Big bang theory

The discovery of cosmic microwave background radiation and primordial helium gas was scientific evidence supporting the <u>big band theory</u>.

<h3><u>Explanation</u>;</h3>
  • <u>The Cosmic microwave background radiation was a faint background radiation which was a remnant from an early stage of the universe during the Big Bang.</u>
  • Cosmic microwave background radiation is an important source of data on early universe since it is the oldest radiation in the universe. <em><u>This radiation was a remnant from the origin or birth of the universe, and provided strong evidence that the universe expanded from an initial violent explosion known as the Big Bang.</u></em>
Nookie1986 [14]3 years ago
4 0
Those two theories are key points that support the big bang theory.
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Tapping means the maximum use of the energy by the people.

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6 0
2 years ago
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates
marta [7]
First, create an illustration of the motion of the two cars as shown in the attached picture. The essential equations used are:

For constant acceleration:
a = v,final - v,initial /t
d = v,initial*t + 1/2*at²

For constant velocity:
d = constant velocity*time

The solutions is as follows:

   a = v,final - v,initial /t
  3.8 = (v₁ - 0)/4.6 s
  v₁ = 17.48 m/s

    Total distance = d1 + d2 + d3
    d1 = d = v,initial*t + 1/2*at²
    d2 = constant velocity*time
    
   Total distance =  0*(4.6) + 1/2*(3.8)(4.6)² + (17.48)(9.2) + d3= 257.71
   d3 = 56.69 m

3 0
4 years ago
What do radio waves and microwaves have in common?
MAVERICK [17]
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6 0
4 years ago
What current is used to power the United States power grid?
alexdok [17]
The answer is Alternating Current
3 0
3 years ago
Read 2 more answers
After driving a portion of the route, the taptap is fully loaded with a total of 27 people including the driver, with an average
lara [203]

Answer:

compression of spring is x = 0.12 m

Assumed k = 160,000 N/m ........ Truck's suspension system

Explanation:

Given:

- The mass of average person m_p = 69 kg

- Total number of persons n_p = 27

- The mass of each goat m_g = 15 kg

- The total number of goats n_g = 3

- The mass of each chicken m_c = 3 kg

- The total number of goats n_c = 5

- The total mass of bananas m_b = 25 kg

Find:

How much are the springs compressed?

Solution:

- Using equilibrium equation on the taptap in vertical direction:

                                 F_net = F_spring - F_weight = 0

- Compute the force due to all the weights on the taptap:

                                F_weight = (n_p*m_p + n_g*m_g + n_c*m_c + m_b)*9.81

                                F_weight = (69*27 + 3*15 + 5*3 + 25)*9.81  

                                F_weight = 19109.88 N

- The restoring force of a spring is given by:

                                F_spring = k*x

Where, k is the spring stiffness and x is the displacement:

                                 F_weight = F_spring

                                 19109.88 = k*x

                                 x = 19109.88 / k

We need to assume the spring stiffness we will take k = 160,0000 N/m (trucks suspension systems). The value of the stiffness must be high enough to sustain a load of 1.911 tonnes.

                                 x = 19109.88 / 160,000

                                 x = 0.1194 m ≈ 0.12 m = 12 cm

- A compression of 12 cm seems reasonable for a taptap to carry 1.911 tonnes of load. Hence, the assumption of spring stiffness was reasonable. Hence, the compression of spring is x = 0.12 m.

8 0
4 years ago
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