Answers
Answer:
Friction
Explanation:
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.
Related Questions
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
Answers
Answer:
both an electric field and a magnetic field
Explanation:
Newton’s 3rd law is for every action, there is an equal and opposite reaction
True of false
Answers
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
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.)
Answers
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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Please help!!!! I need a good grade on this test !!!! Plssss
Answers
Answer:
There’s nothing in the pic
Explanation:
Just like my bf ... nonexistent
what is the meaning of the word antonyms
Answers
Answer:
a word opposite in meaning to another ( bad and good ).
Explanation:
a word which has opposite in meaning to another word
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?
Answers
Under the Big Top elephant, Ella (2500 kg), is attracted to Phant, the 3,000 kg elephant. They are separated by 8
How does convection play a role in hurricanes
Answers
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.
What unit is used for speed?
1. m/s
2. S
3. m/s2
4. m
Answers
Answer:
The unit of speed is m/s.
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)
Answers
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.
Why is average global temperature the most important value when talking about climate change?
Answers
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.
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PLEASE HELP ASAP!! An upright wave pulse with an amplitude of 152 mm collides with an inverted wave pulse with an amplitude of 70 mm. At the moment when the two pulses overlap, the amplitude of the pulse will have an amplitude of ________ mm.
Answers
Can someone please help me with science
Answers
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
This process releases a large amount of . Energy ,oxygen ,or water
Answers
Answer:
carbon dioxide i think please be right
Which of these materials is permeable?
Answers
The frequency will be 6 × 1014 H z of a typical green photon of 500nm emitted by the Sun. a. TRUE
b. FALSE
Answers
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?
Answers
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.
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
Answers
Answer:
1. answer - it is conserved in a system
2. answe- impulse is equal to the change in momentum
The light is in one direction after passing through a polarizer
True or false
Answers
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
Is this right? Please help me. ITS SOCIOLOGY!!
Answers
Answer:
i think so
Explanation:
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.
Answers
Answer:
[tex]p = f \div a[/tex]
[tex]p = \frac{185.6}{ {3}^{2} } = \frac{185.6}{9} = 20.6pa[/tex]
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.
Answers
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.
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
Answers
Answer:
all of the above.Explanation:
Answer:
im not sure but i think b. cannot withstand the pressure...
if not all the above.
Explanation:
an ocean current moving from the equator toward a pole is
Answers
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.
A second hand on a clock has a radius of 10 cm what is the circumference of a circle around which the secondhand travels
Answers
what are the four main elements of matter
Answers
Answer:
Earth, Water, Air, Fire.
Explanation:
Answer:
Earth, Water, Air, Fire
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.
Answers
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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Which change is an example of transforming potential energy to kinetic energy?
changing thermal energy to electrical energy
changing mechanical energy to chemical energy
changing nuclear energy to radiant energy
changing radiant energy to electrical energy
Answers
Answer:
changing nuclear energy to radiant energy
Changing nuclear energy to radiant energy is an example of transforming potential energy into kinetic energy.
What is kinetic energy?Kinetic energy is a type of motion energy (i.e., energy in movement), which is used to perform work.
Conversely, potential energy is a type of energy stored in an object, which can be converted to kinetic energy.Nuclear energy is a type of potential energy because this energy is stored in the atomic nucleus.In conclusion, changing nuclear energy to radiant energy is an example of transforming potential energy into kinetic energy.
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when you blow across the top of a soda bottle it acts like a closed pipe. if it creates a fundamental frequency of 680 Hz, how deep is the bottle? (Speed of sound = 343 m/s) (Unit = m)
Answers
Answer:
0.125
Explanation:
acellus
Pedro picked up and held a cube of ice in his hand and noticed that he no longer felt a difference in temperature after the ice cube melted in his hand. Which of the following statement best explains what happened?
1.Heat was transferred from Pedro’s hand to the ice increasing the temperature of the ice.
2.Heat was released from the ice cube into the air increasing the temperature of the ice.
3.Cold was transferred to Pedro’s hand from the ice increasing the temperature of the ice.
4.Heat was released from Pedro’s hand into the air melting the ice increasing the temperature of the ice.
Answers
Answer:
the answers is 1.
Explanation:
this is because heat always travel's from the warmest object to the coldest. His hands thermal energy is transferred to the ice making the ice round to the same temperature of his hand. This can also be an example of equalibrum.
Explain the changes in energy as a ball is held in the air , and then dropped
Answers
Answer:
Potential Energy to Kenetic Energy
Explanation:
When holding a ball in the air, the ball has potential energy. Once you drop the ball, the ball gains Kenetic Energy