Answer:
B: Distance and amount of charge
Explanation:
I am taking the quiz and this is the correct answer!
Electric potential depends on Distance and amount of charge.
What is electric potential?The electric potential is defined as the amount of work needed to move a unit of electric charge from a reference point to the specific point in an electric field.
Electric potential depends on what factors?For any charge located in an electric field its electric potential depends on the type (positive or negative), amount of charge, and its position in the electric field.
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PLZ ANSWER THISSSSS!!!! FIRST ONE, I WILL MARK BRAINLIST!!!
What is the current of a 24 ohm heating coil in a coffee maker plugged into a 120V outlet?
What voltage will produce 6 amps through a circuit that has 10 ohms of resistance?
Answer:
Current, I = 5A.
Voltage, V = 60V.
Explanation:
In part 1;
We were given the following data:
Resistance = 24 ohm
Voltage = 120V
To find the current,
According to ohm's law which states that, the current flowing through a conductor is directly proportional to the amount of potential voltage across its terminal and inversely proportional to the opposition to the flow of current (resistance) of the conductor.
Mathematically,
[tex] V = IR[/tex]
Where, V represents voltage measured in volts (v).
I represent current measured in amperes (A).
R represent resistance measured in ohms.
[tex]I = \frac{V}{R}[/tex]
Substituting into the equation, we have;
[tex]I = \frac{120}{24}[/tex]
I = 5amp
For part 2.
Given the following data
Current = 6
Resistance = 10ohms
Velocity =?
[tex] V = IR[/tex]
[tex] V = 6 * 10[/tex]
V = 60V
mention the importance of writing the number in scientific notation
Find the length of a rectangle with the area 20cm² and width 10cm
Answer:
The answer is 2 because 10 times 2 equals 20
Explanation:
Answer:
2 cm
Explanation:
A=L * w
20 = 10 * L
L = 20/10
L = 2cm
How long will it take a projectile to hit the ground from a 400 m tall cliff when launched at 30 m/s horizontally?
19.55 sec
13.33 sec
9.03 sec
4.54 sec
Fast reply if possible
Explanation:
What is the acceleration due to gravity?
А
B
9.2
12.3
С
8.83
D
9.81
What is your average speed in mph if you travel 15 miles in 2 hours and 30
minutes?
hey
Answer:
6 mph
Explanation:
mph = miles per hour
So 15 miles over 2.5hrs
So 15/2.5 = 6 mph
A 12 V battery produces a current of 6 amps. What is the resistance?
Answer:
The resistance is 2 ohms
Explanation:
Hopes this helps.
The various different parts of a cell, called organelles, are beneficial to the cell in what way?
Answer:
The various organelles increase the energy used by the cell.
Explanation:
The various different parts of a cell, called as organelles, are beneficial to the cell in different ways such as energy production, protein synthesis, heredity information and packaging of proteins.
What are Organelles?An organelle is a specialized part of the cell which serves a specific purpose within the cell. There are various organelles present within a cell and these organelles also vary depending on what kind of cell we are talking about, whether it be a plant or animal cell such as chloroplast and vacuole.
The different organelles in the cell perform different functions such as ribosomes synthesize proteins, mitochondria synthesize ATP, chloroplast involved in photosynthesis, and nucleus contain heredity information of the cell.
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Which particle (proton, neutron, or electron) has a positive charge?
Which of the following is a vector quantity?
A. 30 miles
B. 30 mph northwest
C. 55 m/s
D. 20 mph
Answer:
B) 30 mph northwest
Explanation: Vector quantities have both direction and magnitude. In this case the direction is northwest, and magnitude is 30 mph.
The following is a vector quantity, 30 mph northwest. Option B is correct.
What is a vector quantity?A vector quantity is a physical quantity that has both magnitude and direction. Examples of vector quantities include displacement, velocity, acceleration, force, and momentum.
In contrast, a scalar quantity is a physical quantity that has only magnitude and no direction associated with it. Examples of scalar quantities include speed, distance, mass, temperature, and time.
Here,
A vector quantity is a physical quantity that has both magnitude and direction. In this case, the magnitude is 30 mph and the direction is northwest, which makes it a vector quantity.
Option A is a scalar quantity because it only has a magnitude, but no direction associated with it. Option C is also a vector quantity because it has both magnitude and direction, but it is not given a direction in the question. Option D is a scalar quantity because it only has a magnitude.
Thus, the following is a vector quantity, 30 mph northwest. Option B is correct.
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A warehouse is 1980 cm long,1050cm wide and 495cm high. What is the volume in cubic meters?
Answer:
It should be 1,029.105 m³
But I think you can ignore the 105 because it essentially doesn't make a difference
how do forces work in nature?
The strong force is that force which cause the basic pieces of an atom to hold together. The weak force is radiation; this force is instrumental in things decaying. Electro-magnetism is the charged field which surrounds iron based materials or objects.
Force make objects movable and to change their state. Various kinds of forces in nature balances altogether every processes in nature. The energy we gain or lost is due to some kind of force and resultant displacement.
What is force?Force is an external agent acting on an object to change its state of motion or to deform it. Force is a vector quantity and is characterized by its magnitude and direction. There are various kinds of forces such as gravitational force, magnetic fore, frictional forces, nuclear force etc.
Its due to gravitational force by earth that we are standing on the ground. We experience a weight due to this effect. Similarly the rotating current in the earth core generates the magnetic force of earth.
Every objects need a force to change its state or rest or motion. Similarly, the work done in any fields is the result of any force applied on the system.
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the different phases of the moon are caused by the moon's near 28-day_
Answer:
lol
Explanation:
why is lightning seen before thunder is heard?
Answer: Lightning is seen before thunder is heard" is correct about thunderstorms
Explanation:
A "thunderstorm" is a disturbance in weather that is related with lightning, dense clouds, heavy rain, hail or thunder. During a thunderstorm, lightning is always seen before thunder because the speed at which the light travels is faster than that of sound's speed.
Also, thunder's noise could be heard up to 10 km away from lightning flash. The thunder sound lasts for a few seconds. The thunder makes noise because of the rapid and fast expansion of the heating of the air.
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Answer:
because light is faster than sound
Explanation:
the speed of light is 299 792 458 m / s
and the speed of sound is 343 m / s
In your own words, describe conservation of mass. Use examples to support your answer.
Answer:
The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be removed
Explanation:
If you could repeat the lab and make it better, what would you do differently and why? There are always ways that labs can be improved. Now that you are a veteran of this lab and have experience with the procedure, offer some advice to the next scientist about what you suggest and why. Your answer should be at least two to three sentences in length.
Answer:
I suggest that you recheck your answers multiple times and make sure that they are making sense. Also I think that you should Study the organisms very well and you should be careful when making observations so that you really are sure that the organism has 4 wings and not only 2 wings(for example).
Explanation:
I hope this answers your question
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The geometry of a hydrogen-bromide molecule is ____.
Answer:
polar-molecule
Explanation:
If a race car wants to change its velocity then a net force is
required to cause the necessary
Answer:acceleration
Explanation:
We define acceleration as the rate of change of velocity. So if a moving object wants to change its velocity, it needs to accelerate.
Thus the statement would be:
"If a race car wants to change its velocity then a net force is required to cause the necessary acceleration".
--------------------------------
Acceleration defines how the velocity changes, suppose that you are in one dimension and you move with positive velocity, if you have also positive acceleration your velocity will increase.
If you have negative acceleration your velocity will decrease.
But if we go to 2 dimensions we can see that acceleration is way more complex, because it is what allows the changes of direction of motion (by changing the direction of the velocity).
Now, acceleration comes from Newton's second law of motion:
F = m*a
Force equals mass times acceleration.
Then if we know that a car wants to change its velocity, it needs to apply a force such that it causes the necessary acceleration to change the velocity as wanted.
From this we can see that the complete statement would be:
"If a race car wants to change its velocity then a net force is required to cause the necessary acceleration"
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WILL GIVE BRAINLIEST!!! (100 points) cliff divers in hawaii dive from 65 meter high cliffs. the rocks at the base of the cliff protrude 27 meters beyond the edge of the cliff. which sketch is the correct representation of the problem?
answer asap please:)
choice 3 because the arrow has to be downward for as. and if the divers want to live, the vx has to be going right and not 0 or they would hit the rocks. I hope it's right!
The most massive automobile to have been manufactured on a regular basis
was the Russian-made Zil-41047. If one of these cars was to move at just
8.9 m/s, its momentum would be 2.67 x 10^4kg • m/s. Use this information
to calculate the mass of a Zil-41047.
Use the formula for momentum: Momentum = (mass) x (speed)
2.67 x 10⁴ kg-m/s = (mass) x (8.9 m/s)
Mass = (2.67 x 10⁴ kg-m/s) / (8.9 m/s)
Mass = 3,000 kilograms
That's 3 metric tons. On Earth, it weighs 6,614 pounds, or 3.3 US tons.
It probably performs a lot like my car.
can someone please help me I don’t understand how i’m supposed to solve this
Answer:
the net force is 10 and it is pushing to the right
Explanation:
The net force is the total and sonce the 20N is overpowering the 10N it will have 10N which will put the 20N ahead
1. A buoyant force of 790 N lifts a 214 kg sinking boat.What is the boat's
net acceleration?
Answer:
The net acceleration of the boat is approximately 6.12 m/s² downwards
Explanation:
The buoyant or lifting force applied to the boat = 790 N
The mass of the boat lifted by the buoyant force = 214 kg
The force applied to a body is defined as the product of the mass and the acceleration of the body. Therefore, the buoyant force, F, acting on the boat can be presented as follows;
Fₐ = F - W
The weight of the boat = 214 × 9.81 = 2099.34 N
Therefore;
Fₐ = 790 - 2099.34 = -1309.34 N
Fₐ = Mass of the boat × The acceleration of the boat
Given that the buoyant force, Fₐ, is the net force acting on the boat, we have;
F = Mass of the boat × The net acceleration of the boat
F = -1309.34 N = 214 kg × The net acceleration of the boat
∴ The net acceleration of the boat = -1309.34 N/(214 kg) ≈ -6.12 m/s²
The net acceleration of the boat ≈ 6.12 m/s² downwards
The boat's net acceleration is -6.12 m/s²
Given that:
Buoyant force = 790 N, mass (m) = 214 kg, acceleration due to gravity (g) = 9.81 m/s²
Net force = Buoyant force - mg = 790 - (214 * 9.81) = -1309.34 N
Net acceleration = Net force / mass
Net acceleration = -1309.34 N / 214 kg = -6.12 m/s²
The boat's net acceleration is -6.12 m/s²
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Your backpack has a mass of 8 kg. You lift it from the ground to a height of
0.7 m. How much work is done by gravity as you lift the backpack?
A. -5.6 J
B. 54.9 J
C. -54.9 J
D. 5.6 J
Will mark brainliest!
Answer:
-54.9
Explanation:
A wooden log has to be carried by two people. If one of them is strong and another is weak, how will they carry the log?
Show with a diagram and also give reason.
Answer:
Explanation:
theey carry it together
4. Jed drops a 10 kg box off of the Eiffel Tower. After 2.6 seconds, how fast is the box moving? (Neglect air resistance.)
Answer:29.4m/s
Explanation: Vf=Vi +at= 0 initial velocity +(9.8)(3)= 29.4 m/s
Newton's second law of motion states that larger things need more force to move them than lighter
things. What would be an example of this law in action?
Answer:
weight of two people
Explanation:
Suppose two people are walking and among the two people, if one is heavier than the other, then the one weighing heavier will walk slower because the acceleration of the person weighing lighter is greater.
2nd Law: F=ma
a= change in velocity/time
a=F/m
say both objects must accelerate at a=2 m/s^2
object A is a wood plank, which is roughly 10 kg
object B is my metal ball, which has a mass of 100kg
now, solving for F applied to both objects
Fwood=(10kg)(2 m/s2)= 20 N
Fmetal=(100kg)(2 m/s2)= 200 N
the F needed to move the metal ball is 10 times greater than the F needed to move the wood plank. Hope this helped, I'm about to go fail my physics exam :)
Which option is a force:
A. velocity
B. acceleration
C. mass
D. weight
Answer:
D
Explanation:
Weight and force have same derived units
A ___ is the unit of measurement for force.
Answer:
Newton (N)
Explanation:
A newton is the unit of measurement for force
What is the relationship between mass and kinetic energy?
Answer:
Direct relation
Explanation:
When an object of mass m is moving with some velocity v, it will have kinetic energy. It is possessed by an object whenever an object is in motion. It can be given by the below formula.
[tex]E_k=\dfrac{1}{2}mv^2[/tex]
It is very clear that the kinetic energy of an object is directly proportional to its mass. When the mass increases, its kinetic energy increases directly.
jet aeroplanes and rockets work on the principal of newton's third law of motion. explain. fast I will mark brainly
Answer:
Explanation:
According to Newton's third law of motion, every action has an equal and opposite reaction. When a rocket starts, it releases some gases which exerts and equal and opposite force which helps the rocket to move.
Hope this helps
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