1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ilya [14]
2 years ago
11

Which provides evidence of universe expansion that supports the Big Bang Theory? Select the three correct answers. (2 points)

Physics
1 answer:
baherus [9]2 years ago
3 0

The Big Bang Theory is a theory that describes the origin of the Universe. This theory was first proposed by the Belgian cosmologist G. Lemaitre in 1931.

  • The evidence of universe expansion that supports the Big Bang Theory is the observation that the temperature of the universe is decreasing.

  • According to this theory, the Universe is continuously expanding as it becomes cooler.

The most important lines of evidence that support the Big Bang Theory include:

  1. The observed expansion of the space in the Universe.
  2. The discovery of the cosmic microwave background radiation (CMB) is believed to be leftover radiation from the Big Bang.

Learn more in:

brainly.com/question/9199964?referrer=searchResults

You might be interested in
In nuclear physics wht units are used to measure the radius of an atom ?
Alecsey [184]
Angstrom = 10^-10 m
for nucleus size are used fermi (femtometer  10^-15 m )
6 0
3 years ago
what is the force if a block of wood with mass 20 kg slides along a frictionless surface at 2 m/s squared
CaHeK987 [17]

Answer:

40 N

Explanation:

F=ma where F is the applied force, m is the mass of object and a is the acceleration.

Since there is no friction, substituting 20 Kg for m and 2 m/s squared for a then we obtain

F=20*2=40 N

5 0
3 years ago
You have a tungsten sphere (emissivity ε = 0.35) of radius 25 cm at a temperature of 25°C. If the sphere is enclosed in a room w
egoroff_w [7]

Answer:

Explanation:

Stefan's formula for emission of radiation is

E = e σ A  ( T⁴ - T₀⁴ )

E is energy radiated , e is emissivity , σ is stefan's constant , T is temperature of object and T₀ is temperature of surrounding. A is area of surface .

E = .35 x 5.67 x 10⁻⁸ ( 298⁴ - 268⁴ ) x 4π x .25²

= 1.9845 x 10⁻⁸ ( 78.86 - 51.58 ) x 10⁸ x .0625

= 3.38  J /s

8 0
2 years ago
Hannah walks 0.30 km to class in 5.0 min. what is her average speed in m/s?
OverLord2011 [107]

Answer:

1.0 m/s

Explanation:

First, convert to SI units.

0.30 km × (1000 m / km) = 300 m

5.0 min × (60 s / min) = 300 s

Speed is distance divided by time:

300 m / 300 s = 1.0 m/s

3 0
2 years ago
. While a person lifts a book of mass 2 kg from the floor to a tabletop, 1.5 m above the floor, how much work does the the perso
viktelen [127]

Answer:

a) 29.4 J

b) - 29.4 J

Explanation:

Given:

Mass of the book, m = 2 kg

Height above the floor, h = 1.5 m

Now,

the work done by the person will be = Force applied on the book × displacement of the book

thus,

Work done by the person = mg × h

where, g is the acceleration due to gravity

thus, on substituting the values, we get

Work done by the person = 2 × 9.8 × 1.5 = 29.4 J

now,

for the force applied by the gravitational pull (downwards) the displacement is in opposite direction (upwards) to the force of the gravity.

Thus,

work done by the gravity will be negative

therefore, the work done by the gravity = - mg × h

or

work done by the gravity = - 29.4 J

5 0
2 years ago
Read 2 more answers
Other questions:
  • Express fx and fy in terms of the length of the vector f and the angle θ in paired form
    13·1 answer
  • Count Rumford concluded that heat energy is produced by
    11·1 answer
  • A box weighing 4.0 N is lifted 3.0 meters. How much work is done on the box?
    14·1 answer
  • A proton moves with a velocity of v with arrow = (3î − 5ĵ + k) m/s in a region in which the magnetic field is B with arrow = (î
    8·1 answer
  • Why do raindrops fall with a constant speed during the later stages of their descents?
    6·1 answer
  • A constant force is exerted for a short time interval on a cart that is initially at rest on an air track. This force gives the
    9·1 answer
  • What is thermal energy defined as
    6·2 answers
  • A simple motor converts ________energy into________energy.
    7·2 answers
  • A 60-kg woman runs up a staircase 15 m high (vertically) in 20 s.
    8·1 answer
  • During Photosynthesis, solar energy is absorbed. What kind of reaction is<br> taking place?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!