Answer:
Energy which the body possesses by behavior of being in motion
Which of the following statements would be accepted as a valid criticism of
the big bang theory in scientific circles?
A. It cannot be tested directly.
B. It does not explain how stars are clustered.
C. It can be revised at a later date.
0
D. It is just an educated guess.
Answer:b
Explanation:
The statement B would be accepted as a valid criticism of the Big Bang Theory in scientific circles, It does not explain how stars are clustered.
What is Big Bang Theory?The Big Bang hypothesis is the most widely accepted cosmological model for describing the origins of the observable universe and its subsequent large-scale development.
Statements would be accepted as a valid Big Bang Theory in scientific circles is that it does not explain how stars are clustered.
Hence, option B is correct.
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What happens to the position of an object as an unbalanced force acts on it? Give an example.
Hi! I'm a few days late since I just saw this question just now, but I'll answer anyway.
Answer:
When an unbalanced force acts on a moving object, the velocity of the object will change. Change in velocity means a change in speed, direction, or both. For example, if you kick a soccer ball and it moves from one place to another, it means that unbalanced forces are acting upon it. The ball moves from one place to another after kicking it so the position changed.
Which of the cars above are traveling at the same velocity?
A) c and d
B) b,c,d and f
C) b,c and d
D) b and c
Answer:
b,c,d,and f are the car traveling at the sane velocity
According to Newton's Law of Cooling, if a body with temperature T 1 is placed in surroundings with temperature T 0, different from that of T 1, the body will either cool or warm to temperature T(t) after t minutes, where:
T(t) = T 0 + (T 1 - T 0)e kt
and k is a constant.
A cup of coffee with temperature 140°F is placed in a freezer with temperature 0°F. The constant k ≈ -0.0815. Use Newton's Law of Cooling to find the coffee's temperature, to the nearest degree Fahrenheit, after 15 minutes.
The temperature is about
degrees Fahrenheit.
We can substitute the given values into the equation for T, given the surrounding temperature T0 = 0, initial temperature T1 = 140, constant k = -0.0815, and time t = 15 minutes.
T = 0 + (140 - 0)e^(-0.0815*15) = 140e^(-1.2225) = 41.23°F
Which is a device that stores electric charge by separating positive and negative charges?
O a conductor
O a dielectric
O a resistor
O a capacitor
Answer:
The last one, a capacitor
Explanation:
Right on edge.
4. What is the period of the microwaves in the above question?
Answer:
The period of a wave is the time for a particle on a medium to make one complete vibrational cycle. Period, being a time, is measured in units of time such as seconds, hours, days or years. The period of orbit for the Earth around the Sun is approximately 365 days; it takes 365 days for the Earth to complete a cycle.
Tremendous energy is released by nuclear reactions is a measure of the energy required to bond the nucleus together. Where does this energy come from?
Answer:
Fission is the opposite of fusion and releases energy only when heavy nuclei are split. As noted in Fusion, energy is released if the products of a nuclear reaction have a greater binding energy per nucleon than the parent nuclei.
The amount of energy released during nuclear fission is millions of times more efficient per mass than that of coal considering only 0.1 percent of the original nuclei is converted to energy. Daughter nucleus, energy, and particles such as neutrons are released as a result of the reaction
3. A train covers 168 km in 4 hours. How much distance will it cover in 80
minutes?
Answer:
56km
Explanation:
168 ÷ 240 = 0.7
0.7 × 80 = 56km
240 is the amount of minutes in 4 hours.
We divided 168 by 240 to get the distance covered in 1 minute. Afterwards, we needed 80 minutes so we multiplied the answer by 80.
Based on information from the periodic table, what does this image represent?
A halfback makes a turn on the football field. The halfback sweeps out a path that is a portion of a circle with a radius of 12-meters with a tangential velocity of 5 m/s. Determine acceleration of the halfback.
Answer:
The right answer is "15.072 m/s".
Explanation:
The given values are:
Radius,
= 12 m
Time,
= 5 m/s
As we know,
⇒ [tex]s=\frac{d}{t}[/tex]
On substituting the given values in the above formula, we get
⇒ [tex]=\frac{2 \pi(12)}{5}[/tex]
⇒ [tex]=\frac{2\times 3.14\times 12}{5}[/tex]
⇒ [tex]=\frac{75.36}{5}[/tex]
⇒ [tex]=15.072 \ m/s[/tex]
If an object free-falls for t seconds from rest to d distance, how far will the object fall from rest in twice the elapsed time?
Answer:
When the time of fall is doubled, the height of fall will be quadrupled
Explanation:
Given;
height of fall, h = d m
time of fall, t = t s
initial velocity of the object, u = 0 m/d
The height of fall of the object is calculated from the kinematic equation below;
[tex]h = ut + \frac{1}{2} gt^2\\\\h = 0 + \frac{1}{2} gt^2\\\\h = \frac{1}{2} gt^2\\\\2h = gt^2\\\\g = \frac{2h}{t^2}[/tex]
where;
g is acceleration due to gravity, which is constant
if the time of fall is doubled, the height of fall is calculated as;
[tex]\frac{2h_1}{t_1^2} = \frac{2h_2}{t_2^2} \\\\\frac{h_1}{t_1^2} = \frac{h_2}{t_2^2}\\\\(Note: h_1 = d, \ and \ t_1 = t)\\\\h_2 = \frac{h_1t_2^2}{t_1^2} \\\\h_2 = \frac{(d)(2t_1)^2}{t_1^2} \\\\h_2 = \frac{(d)(2t)^2}{t^2}\\\\h_2 = \frac{(d)\times 4t^2}{t^2}\\\\h_2 = 4d[/tex]
Therefore, when the time of fall is doubled, the height of fall will be quadrupled
Use standard notation to represent the following elements. 1. potassium 2. copper 3. chlorine
Answer:
K
Cu
Cl
Explanation:
Construct arguments based on evidence about the applications, benefits, and problems of nuclear energy as an alternative energy source.
Answer:
Explanation:
Clean Energy Source It generates more than 800 billion kilowatt hours of electricity each year and produces more than half of the nation's emissions-free electricity. This avoids more than 470 million metric tons of carbon each year, which is the equivalent of removing 100 million cars off of the road.
If I'm wrong I'm sorry
If I'm right thank you and (brainliest plz)
A large body of water with land all around it
Answer:
i think its a lake
Explanation:
Answer: What do you call a large body of water surrounded by land?
A lake is a large body of water surrounded by land on all sides.
Explanation:
a lorry has a mass of 32000 kilograms. each tyre has an area of 400 cm squared in contact with the ground. calculate the pressure exerted on the ground if the lorry has 6 tyres
Answer:
Your answer is 1306666.6667 Pascal
What does a lighting bolt and getting shocked by a doorknob have in common?
Find the current in amperes if 96 mC of charge pass through a wire in 8.4 s.
Answer:
Approximately 11.43
Explanation:
Using the formula charge=current×time
then current=charge/time. That then will be C=96/8.4=11.4285714286 so approximately 11.43
The current would be 825.6 × 10⁻³ amperes if 96 mC of charge passes through a wire in 8.4 seconds .
What is an electric charge ?
Due to the physical characteristic of electric charge, charged material experiences a force when it is exposed to an electromagnetic field.
The charge on one electron is -1.6 ×10⁻¹⁹ coulomb.
As given in the problem we have to find the current in ampere if 96 mC of charge passes through a wire in 8.4 seconds ,
9.6 mC = 9.6 × 10 ⁻³ Coulombs
The electric current = electric charge × time period
= 9.6 × 10 ⁻³ × 8.6
= 825.6 × 10 ⁻³ ampere
Thus, the current would be 825.6 × 10 ⁻³ amperes if 96 mC of charge passes through a wire in 8.4 seconds .
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he Big Bang Theory suggests....
a
The universe began in an instant.
b
The universe was born from clouds of dust and gas.
c
The single point containing the universe exploded and the universe stretched and expanded.
d
Gravity began to form stars and galaxies from clouds of dust and gas.
e
Both A and C.
f
Both B and C.
g
None of the above.
Answer:
C
Explanation:
To know more head to.
https://phys.org/news/2015-12-big-theory.html
Answer:
i think a and c
Explanation:
How would the gravitational force between the Earth and Moon change if the distance between them was halved?
The gravitation force would be nullified; there would no longer be a gravitational force between the Earth and Moon
The gravitational force would be stronger The gravitational force would not change
The gravitational force would be weaker
Answer:
The gravitational force would be stronger.
Explanation:
Force of gravitation increases by 4 times when distance reduced by half.
When the distance between them was halved, the gravitation force would be stronger.
The gravitational force between two objects in the universe is determined using Coulomb's law which states that the force of attraction between two objects in the universe is directly proportional to the product of masses of the objects and inversely proportional to the distance between them.
[tex]F = \frac{Gm_1 m_2 }{R^2}[/tex]
where;
R is the distance between the two objects
when the distance is halved, the gravitational force becomes
[tex]F = \frac{Gm_1 m_2}{(\frac{1}{2} R)^2} \\\\F = \frac{Gm_1 m_2 }{\frac{1}{4} R^2} \\\\F = \frac{4Gm_1m_2}{R^2} \\\\F = 4 \times \frac{Gm_1 m_2 }{R^2}[/tex]
Thus, we can conclude that when the distance between them was halved, the gravitation force would be stronger.
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What is the critical angle for a ray trying to pass from glass (n = 1.52) into water (n = 1.33)? (Water n = 1.33, Air n = 1.00) (Unit = deg)
Answer:
59.52
Explanation:
59.5 in sigfigs
got it right on Acellus
Answer:
61.05
Explanation:
correct on acellus
What was Orsted’s historic discovery?
Answer:
The electric current in a wire can deflect a compass needle if its magnetized.
Explanation:
What if we minned astroids
2. David roller skates 15 miles in 75 minutes. What is his average speed in miles per hour?
1
In two or more complete sentences, explain how you can prove that the number of degrees that the Moon rotates around the Earth each day is approximately 12.2⁰. Write your response in the essay box below.
Answer:
Follows are the explanation to this question:
Explanation:
In this solution, it is defined that there are two principal motions for the moon, which are its revolution as well as rotation. In such a movement called revolution, its Moon is relocating around the Earth, in which the approximate movement of the moon from around earth has an average movement of about 13.2° per day, or 92 degrees every week, that's once in 27.3 days.
Answer:
According to this solution, the Moon has two main motions, revolution and rotation. The Moon moves around the world in the movement called a revolution, in which an average of around 13.2 ° per day, or 92 degrees per week, or once in 27.3 days, is the annual movement of the moon around the Earth.
an aircraft landing on an air craft carrier is brought to a complete stop from an inital velocity of 215km/hr in 2.7 seconds. what is iys acceleration in m/s2
Can Someone Please Help Me For 10 Points.
John steps outside and observes that clouds have started to form in the sky, and it looks like it could rain. Which of the following is the best way to explain why the clouds have formed?
A. The temperature of the air is below zero.
B. There is a low amount of moisture in the air.
C. The warm, wet air in a low pressure system has risen up and cooled down.
D. The wind is traveling at a slow speed.
Answer: C
Explanation: The warm, wet air in a low pressure system has risen up and cooled down.
Please give Brainliest if you can!
Answer: C
Explanation: When John stepped outside, he saw the clouds because the warm, wet air in a low pressure system has risen up and cooled down. This is what will fall down as rain fall.
1.Energy is used when a force acts over a.....................
.................................................
2.All objects have the same weight have:
a)the same place on Earth
b)the same mass
c)the same volume
d)pull of gravity on them
Answer:
the same mass answer b) but i dont know first question
A6 cm object is 8 cm from a convex lens that has a focal length of 2.7 cm. The image is 4 cm from the lens. The height of the image is ?? cm.
Answer:
7.8cm
Explanation:
Answer:
7.8
Explanation:
Which type of energy is the result when a drum is hit with a drumstick?
OA. electrical energy
OB. light energy
OC.
sound energy
OD.
all of these
Reset
Submit
Answer:
That drummer has mechanical energy as he moves the drumsticks to hit the drums and cymbals. So I'm pretty sure it's OD. sound energy.
¯\_(ツ)_/¯¯
Use the drop-down menus to complete the sentences. Tetra fish that live in caves are blind and have small eyes that do not work. This is an example of a . A harbour seal's flipper and a human hand have a very similar structure, but function differently. This is an example of a .
Answer:
vestigial structure
Homologous structure
Explanation:
Did the assignment.
Tetra fish that live in caves are blind and have small eyes that do not work. This is an example of a vestigial structure.
A harbour seal's flipper and a human hand have a very similar structure, but function differently. This is an example of a Homologous structure.
What is vestigial structure?
Some organisms have elements that seem to be left over from an earlier ancestor but have no apparent purpose. For instance, because they are evolved from reptiles with legs, certain snakes have pelvic bones despite not having any. The human vermiform appendix is another instance of a structure that serves no purpose.
Vestigial structures are these inactive, purposeless structures. Other examples of vestigial structures are the wings of flightless animals like the ostrich, the leaves of some cacti, the remains of whale pelvic bones, and the eyes that are blind in cave mammals.
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