Answer:
It is called reverberation.
Explanation:
The phenomenon of prolongation of sound is the process in which sound produced is reflected from plane surfaces in a continuous manner, which leads to reverberation of sound waves. It can also be referred to as a condition of continuous echo production.
It occurs when sound produced get reflected from a hard plane surface, and in the process hits another surface and another reflection occurs. This continuous reflection leads to prolongation of sound.
The sound produced is heard for some specific period of time before it dies down or get absorbed finally.
What is the Martian atmosphere like ?
Answer:
Mars' atmosphere however is 95% carbon dioxide, 3% nitrogen, 1.6% argon, and it has traces of oxygen, carbon monoxide, water, methane, and other gases, along with a lot of dust. Dust hanging in the air colors Martian skies tan in photos taken from the surface. Relative to Earth, the air on Mars is extremely thin.
Explanation:
1. Which of the following is NOT true about momentum?
a. It has direction
b. It is conserved in a system
c. It depends on mass and velocity
d. It is the same as the energy of a body
2. Which of the following is TRUE about the impulse acting on a body and it's change in momentum?
a. Impulse is equal to the change in momentum
b. Impulse is greater than the change in momentum
c. Impulse is less than the change in momentum
d. There is no relation between impulse and change in momentum
Answer:
1. answer - it is conserved in a system
2. answe- impulse is equal to the change in momentum
Under the Big Top elephant, Ella (2500 kg), is attracted to Phant, the 3,000 kg
elephant. They are separated by 8 m. What is the gravitational attraction between
them?
Under the Big Top elephant, Ella (2500 kg), is attracted to Phant, the 3,000 kg elephant. They are separated by 8
Why is average global temperature the most important value when talking about climate change?
Answer:
The most important number's formal name is "equilibrium climate sensitivity," and it's meant to represent the new equilibrium in surface temperatures after a change in the amount of the Sun's energy trapped here on Earth rather than radiated back to space.
Explanation:
please give me brain list and follow
The average global temperature is the most important value when talking about climate change because the Earth's temperature is increasing day by day due to the trapping of the Sun's light energy.
What is temperature?The temperature is the degree of hotness or coldness of the object.
The equilibrium climate sensitivity is the equilibrium in Earth's surface temperature. After the Sun's trapped energy is reduced, the climate changes accordingly.
Thus, the average global temperature is the most important value when talking about climate change because the Earth's temperature is increasing day by day due to the trapping of the Sun's light energy.
Learn more about temperature.
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I. Is the moon luminous or non-luminous? Give a reason for your answer.
Answer:
non-luminous
Explanation:
Moon doesn't give off light of its own, that's why the moon is considered a non-luminous body
Which of these materials is permeable?
How does convection play a role in hurricanes
Answer:
Convection is what keeps the hurricane going in till the storm hits land.
Explanation:
Convection is the warm, moist current that rises above sea level and as it cools into water vapor it releases energy which a hurricane runs on. Once the hurricane hits land it continues to lose energy to keep it going because there's no convection from the sea currents rising above sea level to release energy.
Hope this helps.
This process releases a large amount of . Energy ,oxygen ,or water
Answer:
carbon dioxide i think please be right
an ocean current moving from the equator toward a pole is
Answer:
A warm current
Explanation:
Answer:
A warm current is moving away from the equator towards the poles. The water in a warm current is warmer than the surrounding water.
Decide whether these are true or false. Type out the whole sentence in the space and type a "T" beside the letter. Retype the sentences that are not correct. A. An object has acceleration if its velocity is changing. B. Force is measured in joules. C. Gravity is a force.
Answer:
1. True.
2. False.
3. True.
Explanation:
A. True: An object has acceleration if its velocity is changing. In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.
B. False: Force is measured in joules. Force is a product of the mass of an object and its rate of acceleration. Thus, force is actually measured in Newton.
C. Gravity is a force. Gravity is considered to be a universal force of attraction which acts between all objects that has both mass, energy and occupy space. Therefore, it acts in such a way as to bring objects together.
4.00 kg glass coffee cup is 30.0°C at room temperature. It is then plunged into hot dishwater at a temperature of 90.0°C, as shown in Figure below. If the temperature of the cup reaches that of the dishwater, how much heat does the cup absorb? C glass = 837 (J/kg.C)*
Answer:
Q = 200800 Joules.
Explanation:
Given the following data;
Mass = 4kg
Initial temperature = 30.0°C
Final temperature = 90.0°C
Specific heat capacity of glass = 837 J/kg°C
To find the quantity of heat absorbed;
Heat capacity is given by the formula;
[tex] Q = mcdt[/tex]
Where;
Q represents the heat capacity or quantity of heat.
m represents the mass of an object.
c represents the specific heat capacity of water.
dt represents the change in temperature.
dt = T2 - T1
dt = 90 - 30
dt = 60°C
Substituting the values into the equation, we have;
[tex] Q = 4*837*60[/tex]
Q = 200800 Joules.
Therefore, the amount of heat absorbed is 200800 Joules.
As our Sun exhausts its supply of hydrogen, it will cool down by 1000 to 2000 Kelvin. But it will also become about 100 times brighter than it is now. Describe the path our Sun will take on the HR diagram, and what type of star the Sun will become.
Answer:
It will move upward and to the right, from the main sequence to the giants.
Explanation:
Plato answer so change it up a bit xx
Newton’s 3rd law is for every action, there is an equal and opposite reaction
True of false
Answer:
true
Explanation:
newton's third law of motion states that if body A exerts a force on the body B, then body B will exert an equal and opposite force on body A,
this is called action reaction pair
hope this helps
what are the four main elements of matter
Answer:
Earth, Water, Air, Fire.
Explanation:
Answer:
Earth, Water, Air, Fire
Explanation:
The light is in one direction after passing through a polarizer
True or false
Answer:
Light propagating in a plane that makes a 0 degree angle with the polarizer will pass through and all other planes will only pass the component of the vector that is in line with the polarizer. What the image suggests, and other images like the second one, is that the light is now all propagating parallel to a single plane
Explanation:
hope this helps
Answer:
true
Explanation:
a polarizer allows only light of a specific wavelength to pass through
what is the meaning of the word antonyms
Answer:
a word opposite in meaning to another ( bad and good ).
Explanation:
a word which has opposite in meaning to another word
A zebra drinks from a watering hole and is ambushed by a crocodile. What's more important and why: the zebra having a high maximum speed or a high acceleration?
Answer:
before this type of attack, high acceleration is the most important thing.
Explanation:
As the zebra is ambushed by the crocodile the most important thing is a quick reaction, in this attack the most likely is that the crocodile is in the water so it cannot run after the zebra.
Consequently, before this type of attack, high acceleration is the most important thing.
A second hand on a clock has a radius of 10 cm what is the circumference of a circle around which the secondhand travels
Please help!!!! I need a good grade on this test !!!! Plssss
Answer:
There’s nothing in the pic
Explanation:
Just like my bf ... nonexistent
A moving electric charge is surrounded by:
no field
an electric field only
both an electric field and a magnetic field
a magnetic field only
Answer:
both an electric field and a magnetic field
Explanation:
What unit is used for speed?
1. m/s
2. S
3. m/s2
4. m
Answer:
The unit of speed is m/s.
4. A force of 185.6 N is being applied to a square of side length 3 m. Work out the
pressure on the square to 3 significant figures.
Answer:
[tex]p = f \div a[/tex]
[tex]p = \frac{185.6}{ {3}^{2} } = \frac{185.6}{9} = 20.6pa[/tex]
Can someone please help me with science
Answer:
The mass is one of the factors affecting gravitational field strength.
Weight (Force) = mass × gravitational field strength
= 0.10 × 10 (10 is the fixed gravitational field strength on Earth)
= 1.0 N
A car covers 400m distance in 50 sec find it's speed?
Answer:
[tex]\boxed {\boxed {\sf 8 \ m/s}}[/tex]
Explanation:
Speed is equal to distance over time.
[tex]s=\frac{d}{t}[/tex]
The distance is 400 meters and the time is 50 seconds.
[tex]d= 400 \ m \\t= 50 \ s[/tex]
Substitute the values into the formula.
[tex]s=\frac { 400 \ m }{ 50 \ s}[/tex]
Divide.
[tex]s= 8 \ m/s[/tex]
The speed of the car is 8 meters per second.
Assume that a vaulter is able to carry a vaulting pole while running as fast
as Carl Lewis in his world record 100-m dash (around 12 m/s). Also assume
that all of the vaulter's kinetic energy is transformed into gravitational
potential energy. What vaulting height could that person attain?
(Hint: Use the equation 5 mu? = mgh.)
Answer:
5mu = carry a vaulting pole ( 12 m/s) Also
fast
All the vaulter's kinetic energy is transformed into gravitational potential energy. 7.35m is the that person's height.
What is kinetic energy ?Kinetic energy is the energy that an object has as a result of its movement. If we want to accelerate an object, we must apply force to it. Using force requires us to put in effort. After work is completed, energy is transferred to the object, and the object moves at a new constant speed.
The two most important factors influencing kinetic energy are mass and speed. Because an object's motion is determined by its velocity as well as its mass, though velocity is th
Given:
v = 12m/s
g = 9.8 m/s²
Kinetic energy = potential energy
K.E = P.E
1/2 mv² = mgH
H = v² /2g
H = 7.35m
Thus, 7.35m is the that person's height.
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Ocean divers:
must breathe a mixture of oxygen and helium
cannot withstand the pressure of the ocean without special equipment
may one day breathe with artificial gills
all of the above
Answer:
all of the above.Explanation:
Answer:
im not sure but i think b. cannot withstand the pressure...
if not all the above.
Explanation:
What is one reason that electromagnetic waves are used in long-distance communication?
A. They travel rapidly.
B. They move matter easily
C. They do not lose energy over long distances.
D. Informatioŋ can be encoded in the wave speed.
One reason that electromagnetic waves are used in long-distance communication is, that they do not lose energy over long distances. So Option C is correct
What are electromagnetic waves ?Electromagnetic waves are a type of wave that consists of oscillating electric and magnetic fields. They are propagated through space or through a material medium, and they have the ability to travel through a vacuum, which is the absence of matter. Electromagnetic waves have a wide range of frequencies, which determines the type of electromagnetic wave. The most familiar types of electromagnetic waves include radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.
One of the property of the electromagnetic waves is that they do not lose energy over long distances.
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The frequency will be 6 × 1014 H z of a typical green photon of 500nm emitted by the Sun. a. TRUE
b. FALSE
Plssss help———what is the difference between the weight of an object and the mass of an object? (Needs to be 4-5 complete sentences)
The mass of an object is a measure of the object's inertial property, or the amount of matter it contains. The weight of an object is a measure of the force exerted on the object by gravity, or the force needed to support it. The pull of gravity on the earth gives an object a downward acceleration of about 9.8 m/s2.
An 80 kg diver jumps from a 10 m high platform. What is the gravitational potential energy of the diver right before they jump (top of platform)
Answer:
0 Joules.
Explanation:
Given the following data;
Mass = 80kg
Height = 10m
Gravitational potential energy (GPE) is an energy possessed by an object or body due to its position above the earth.
Mathematically, gravitational potential energy is given by the formula;
[tex] G.P.E = mgh[/tex]
Where;
G.P.E represents potential energy measured in Joules.
m represents the mass of an object.
g represents acceleration due to gravity measured in meters per seconds square.
h represents the height measured in meters.
We know that acceleration due to gravity is equal to 9.8m/s²
But since we're determining the gravitational potential energy just before the driver jump, the height would be zero (0) meters.
Gravitational potential energy= mgh
Gravitational potential energy = 80*9.8*0
Gravitational potential energy = 0 Joules.
This ultimately implies that, if an object or body hasn't moved (jumped) from its reference point, its gravitational potential energy would be equal to zero.