Light is the fastest travelling form of energy a. true b. false
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Related Questions
When compounds form, what is one result for the atoms that bonded?A. a stable arrangement of electrons B. an unstable arrangement of electrons C. more than eight electrons in their valence shell D. fewer than eight electrons in their valence shell
A person opens a door by applying a 10-N force perpendicular to it at a distance 0.90m from the hinges.
Which of the metals is the best conductor of heat? How do you know?
A 7.80-g bullet moving at 575 m/s strikes the hand of a superhero, causing the hand to move 5.50 cm in the direction of the bullet’s velocity before stopping. (a) Use work and energy considerations to find the average force that stops the bullet. (b) Assuming the force is constant, determine how much time elapses between the moment the bullet strikes the hand and the moment it stops moving.
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The potential difference between the center of the sphere and the surface of the sphere will be PD=3.6 x 10^8 V
What will be the potential difference?
It is given that:-
Charge Q = +4.00 mC or
insulating sphereradius R = 5.00 cm = 0.05 m
The formula for the potentialdifference at the surface of the sphere is given by
The formula for the potentialdifference at the center of the sphere
The difference between the potential difference will be
Thus the potential difference between the center of the sphere and the surface of the sphere will be PD=3.6 x 10^8 V
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Answer:
3.6 x 10^8 V
Explanation:
Q = 4 m C = 4 x 10^-3 C
r = 5 cm = 0.05 m
The formula for the potential at the surface is
Vs = K Q / r = (9 x 10^9 x 4 x 10^-3) / 0.05 = 7.2 x 10^8 V
The formula for the potential at the centre is
Vc = 3/2 Vs
Vc = 1.5 x 7.2 x 10^8 V = 10.8 x 10^8 V
The difference in potential is
V = Vc - Vs = 10.8 x 10^8 - 7.2 x 10^8 = 3.6 x 10^8 V
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The speed of electron be 183.73 m/s.
What is potential energy?
The energy held within an object is known as potential energy. There are several different types of potential energy, including gravitational potential energy, elastic potential energy, and electric potential energy. An object's energy as a result of the overall charge it contains is known as its electric potential.
Given parameters:
Distance between proton and electron: d = 0.03 m.
Let, at that point the speed of the electron be v.
So from conservation of energy:
Kinetic energy of electron + potential energy of electron = 0
1/2×mv² - 1/(4πε₀)(e²/d) = 0
⇒v = √(2e²/m(4πε₀)(d))
= √( 2 × (1.6 ×10⁻19)²× 9 × 10⁹/9.1093837 × 10⁻³¹×0.03) m/s
= 183.73 m/s.
The speed of electron be 183.73 m/s.
Learn more about potential energy here:
#SPJ2
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Kinetic energy means the object is in motion, or is moving.
Potential energy means the object is not moving, but it has the potential to.
Example:
You are holding your phone in your hand one foot above the ground and you are not moving it at all (Potential energy). You then drop your phone and it begins to fall (Kinetic energy).
Now, you hold your phone in your hand 6 feet above the ground and you are not moving it at all (More Potential energy). You then drop your phone and it begins to fall.. very very hard... (More Kinetic Energy).
have another scientist run the same exact procedure in her lab
include several other liquids for comparison
calculate the average amount of salt that dissolves to summarize findings
make sure the experiment follows a specific procedure that allows other scientists to produce the same findings
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Answer:
C.) Calculate the average amount of salt that dissolves to summarize findings
Explanation:
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Answer:
Calculate the average amount of salt that dissolves to summarize finding
-The third choice/ C-
Have a good day :)
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Answer:
A.this description needs a unit describing the system of measurement
Explanation:
A unit is required to understand the physical quantity being measured. 72 degrees creates a confusion about the reference scale. It could be degree Celsius or degree Fahrenheit.
It is known that 0°C to 32°F. So, the reference changes and hence, it is important to describe the unit. Option A is correct.
Because this will only tell us whether the temp. is in Celsius, fahrenheit or kelvin
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Answer:
c
Explanation: