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
Talja [164]
3 years ago
13

Which theory do scientists believe MOST LIKELY explains the creation of the universe?

Physics
1 answer:
kati45 [8]3 years ago
3 0

Answer:

1st one is: A

2nd one is: B

You might be interested in
Suppose a plane accelerates from rest for 30 s, achieving a takeoff speed of 80 m/s after traveling a distance of 1200 m down th
Margaret [11]

Answer:

300 m

Explanation:

The train accelerate from the rest so u = 0 m/sec

Final speed that is v = 80 m/sec

Time t = 30 sec

The distance traveled by first plane = 1200 m

We know the equation of motion S=ut+\frac{1}{2}at^2 where s is distance a is acceleration and u is initial velocity

Using this equation for first plane 1200=0\times 30+\frac{1}{2}a30^2

a=2.67\frac{m}{sec^2}

As the acceleration is same for both the plane so a for second plane will be 2.67 \frac{m}{sec^2}

The another equation of motion is v^2=u^2+2as using this equation for second plane 40^2=0+2\times 2.67\times s

s = 300 m

5 0
2 years ago
A toy doll and a toy robot are standing on a frictionless surface facing each other. The doll has a mass of 0.2 kg, and the robo
Natali5045456 [20]

Answer:

<h3>1.43m/s²</h3>

Explanation:

According to newtons second law.

F = mass * acceleration

If the doll has a mass of 0.2 kg, and the robot has a mass of 0.5 kg, the resulting mass will be 0.7kg

Force applied = 1N

acceleration = Force/mass

Substitute the values and get acceleration

acceleration = 1/0.7

acceleration = 1.43m/s²

Hence the magnitude of the acceleration of the robot is 1.43m/s²

3 0
3 years ago
What is occurring when two waves traveling along the same medium meet and cancel each other out?
timofeeve [1]

Answer:

Destructive interference

Explanation:

Destructive interference occurs when waves come together in such a way that they completely cancel each other out. When two waves interfere destructively, they must have the same amplitude in opposite directions.

6 0
3 years ago
Read 2 more answers
Establishing a potential difference The deflection plates in an oscilloscope are 10 cm by 2 cm with a gap distance of 1 mm. A 10
11111nata11111 [884]

Answer:

1.62\times 10^{-8}\ \text{s}

Explanation:

\epsilon_0 = Vacuum permittivity = 8.854\times 10^{-12}\ \text{F/m}

A = Area = 10\times 2\times 10^{-4}\ \text{m}^2

d = Distance between plates = 1 mm

V_c = Changed voltage = 60 V

V = Initial voltage = 100 V

R = Resistance = 1000\ \Omega

Capacitance is given by

C=\dfrac{\epsilon_0A}{d}\\\Rightarrow C=\dfrac{8.854\times 10^{-12}\times 10\times 2\times 10^{-4}}{1\times 10^{-3}}\\\Rightarrow C=1.7708\times 10^{-11}\ \text{F}

We have the relation

V_c=V(1-e^{-\dfrac{t}{CR}})\\\Rightarrow e^{-\dfrac{t}{CR}}=1-\dfrac{V_c}{V}\\\Rightarrow -\dfrac{t}{CR}=\ln (1-\dfrac{V_c}{V})\\\Rightarrow t=-CR\ln (1-\dfrac{V_c}{V})\\\Rightarrow t=-1.7708\times 10^{-11}\times 1000\ln(1-\dfrac{60}{100})\\\Rightarrow t=1.62\times 10^{-8}\ \text{s}

The time taken for the potential difference to reach the required level is 1.62\times 10^{-8}\ \text{s}.

5 0
3 years ago
Find the net force produced by a 6 N and an 8 N when acting in same
tankabanditka [31]

Answer:

14 newtons  is the answer

Explanation:

because if they act in the same direction they are added together

5 0
2 years ago
Read 2 more answers
Other questions:
  • Kevin is a black high school senior. While walking home from a sporting event at school, he sees a police car and decides to tak
    14·1 answer
  • 50 POINTS HELP ME PLEASE!!!!!!!!!!!!
    15·2 answers
  • Explain how you can cause light separated by a prism to combine
    11·1 answer
  • We had an experiment that is entitled "balloon rocket" it is an experiment using the force of balloon to make the straw move. it
    5·1 answer
  • Humorous name for a model T Ford
    9·2 answers
  • You are riding a bicycle home from school. You average 5 meters per second and you are headed south.
    15·1 answer
  • 7. A 25 N block is lowered 1.2 m by a 20 N force.
    5·1 answer
  • Explica de que tipo es cada oración según la actitud del hablante
    14·1 answer
  • A plate of uniform areal density is bounded by the four curves: where and are in meters. Point has coordinates and . What is the
    6·1 answer
  • As a gaseous element condenses, the atoms become ________ and they have ________ attraction for one another.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!