Answer:
OA. potential; kinetic
Explanation:
A 10 V battery is connected to a voltage divider circuit
which consists of a 100 Ω resistor and a 300 Ω resistor.
a What is the voltage across the 300 Ω resistor?
A 2.5 V
B 3.3 V
C 7.5 V
D 13.3 V
b) What is the voltage drop across the 100 Ω resistor?
A 2.5 V
B 3.3 V
C 7.5 V
D 13.3 V
Answer:
a) C. 7.5 V
b) A. 2.5 V
Explanation:
First, we find the total resistance of the circuit. A voltage divider circuit is a series circuit. Therefore, its total resistance will be the sum of individual resistances:
[tex]R = R_{1}+R_{2}\\R = 100\ \Omega + 300\ \Omega\\R = 400\ \Omega\\[/tex]
a)
Now, we will apply the voltage divider rule on this circuit to find the voltage across the 300 Ω Resistor (R₂):
[tex]V_{2} = R_{2}\frac{V}{R}\\\\V_{2} = (300\ \Omega)\frac{10\ V}{400\ \Omega}\\\\[/tex]
V₂ = 7.5 V
Therefore, the correct option is:
C. 7.5 V
b)
Now, the voltage across the 100 Ω Resistor (R₁) will be:
[tex]V = V_{1}+V_{2}\\V_{1} = V-V_{2}\\V_{1} = 10\ V - 7.5\ V\\V_{1}=2.5\ V[/tex]
Therefore,the correct option is:
A. 2.5 V
2 disadvantages of a series circuit
Answer:
The first disadvantage is that, if one component in a series circuit fails, then all the components in the circuit fail because the circuit has been broken. The second disadvantage is that the more components there are in a series circuit, the greater the circuit's resistance*.
Explanation:
Hope this helped Mark BRAINLEST!!
The attractive force between two objects that depends on their masses and the distance between them is _______?
Answer:
gravitational force
Explanation:
an object with mass attractive another object with mass
ANSWER:
GRAVITATIONAL FORCE
EXPLANATION :
Gravitational force -an attractive force that exists between all objects with mass; an object with mass attracts another object with mass; the magnitude of the force is directly proportional to the masses of the two objects and inversely proportional to the square of the distance between the two objects.
A certain element has 31 protons and 38 neutrons. What is the atomic mass 1 pol of the element? (Enter answer as a whole number with units of amu).*
Answer:
87
Explanation:
A vibrating object with a high frequency would be
described as having a low period.
True or false
Answer:
False
Explanation:
It would be described as having a long period
A vibrating object with a high frequency would be
described as having a low period is a false statement.
The individual air molecules do not "travel" with the wave. They just vibrate back and forth. When the vibrations are fast (high frequency), you hear a high note. When vibrations are slower, you hear a lower note.
What is frequency ?"Frequency is the number of occurrences of a repeating event per unit of time. "It is also occasionally referred to as temporal frequency to emphasise the contrast to spatial frequency, and ordinary frequency to emphasise the contrast to angular frequency.
Other units: cycles per second (cps); revolutions
SI unit: hertz (Hz)
In SI base units: s−1
Derivations from other quantities: f = 1 / T
What is period ?"A period T is the time required for one complete cycle of vibration to pass a given point. "As the frequency of a wave increases, the period of the wave decreases. Frequency and Period are in reciprocal relationships and can be expressed mathematically as: Period equals the Total time divided by the Number of cycles.
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A child sits 2 meters from the center of a merry-go-round rotating with a
tangential velocity of 0.8 m/s. If the force that maintains the child's circular
motion is 25 N, what is the mass of the child?
que 2. Why do we keep frequency constant instead of keeping vibrating length constam second law of vibrating string?
Answer:
The second law of a vibrating string states that for a transverse vibration in a stretched string, the frequency is directly proportional to the square root of the string's tension, when the vibrating string's mass per unit length and the vibrating length are kept constant
The law can be expressed mathematically as follows;
[tex]f = \dfrac{1}{2\cdot l} \cdot \sqrt{\dfrac{T}{m} }[/tex]
The second law of the vibrating string can be verified directly, however, the third law of the vibrating string states that frequency is inversely proportional to the square root of the mass per unit length cannot be directly verified due to the lack of continuous variation in both the frequency, 'f', and the mass, 'm', simultaneously
Therefore, the law is verified indirectly, by rearranging the above equation as follows;
[tex]m = \dfrac{1}{ l^2} \cdot \dfrac{T}{4\cdot f^2} }[/tex]
From which it can be shown that the following relation holds with the limits of error in the experiment
m₁·l₁² = m₂·l₂² = m₃·l₃² = m₄·l₄² = m₅·l₅²
Explanation:
PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer these correctly!!!! (47pts)
[tex]\huge\mathfrak\red{answer}[/tex]
Jake was playing making a paper airplane, after making he kept it on the table and went to have food.
Suddenly his brother saw the plane and threw it in the air, The airplane kept flying for about 3m/s and it hit his mother and due to the force the plane stopped.
{kept in on the table>rest
brother threw the plane>moving
it hit his mother>force that stopped it}
(mark me brainliest if you're satisfied with my answer)
[tex]\large\sf\red{thank \: you}[/tex]
A ball has 17 J of kinetic energy and its mechanical is 25 J
If the ball has a mass of 3.2 KG what is it’s height above ground?
Answer:
0.255m
Explanation:
The total mechanical energy of the ball is given 25 J. The potential energy of the ball is 8 J. Then, the height of the ball above the ground is 0.25 m.
What is kinetic energy ?Kinetic energy of an object is the energy generated by virtue of its motion whereas potential energy is generated by virtue of its position at a height from the ground.
The sum of kinetic and potential energy of the object is called its mechanical energy.
given Ke of the ball = 17 J
mechanical energy = 25 J
then potential energy = 25 J - 17 J = 8 J.
We have the relation between potential energy, mass and height h as :
p = mgh .
given the mass m = 3.2 kg
g = 9.8 m/s²
then, h = p / (mg)
h = 8 J / (3.2 kg× 9.8 m/s² )
= 0.25 m.
Therefore, the height of the ball above the ground is 0.25 m.
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it took 3.5 hours for a train to travel a distance between two cities at a velocity of 120 miles per hour how many miles Live between the two cities
hope this helps........
A centrifuge accelerates from rest to 12,000 rpm in 235s. What was the centrifuge's angular acceleration?
Need help please????????!!!!!!!!!!
Answer:
Your education back ground
what is the angle of the reflected ray?
1. How much kinetic energy does an apple with a mass of 0.25 kg have if it is falling at a speed of
10m/s
I hope this helps.......
10
Select the types of data that describe climate. (You may select more than one
correct answer)
one day's
Temperature
average ocean
depth
average
precipitation
annual wind
speed
Answer:
temperiture or annual wind speed.
Explanation:
Question 8 of 10
Which planet has the hottest average temperature?
O A. Neptune
O B. Venus
O C. Jupiter
O D. Earth
ASAP
the condition required to work to be done
Answer:
work=f(costheta)
Explanation:
work is done when a force acts on a body and displaces it on the direction of force
someone please help! (image attached)
i got that the potential energy is 1.2 so it’s either the 2nd or 3rd one but i’m not sure how to get the kinetic energy
what is the kinetic energy of a 130 kg football lineman running at 6m/s?
The baseball diamond is a square with sides 27.4 m long. If the positive x-axis points from home plate to first base and the positive y-axis points from home plate to third base, find the magnitude and the direction angle of the displacement vector is a base runner who has just hit A) a double, B) a triple, and C) a home run.
Answer:
What is the magnitude of the player 's displacement? A baseball "diamond" is a square, each side of length 27.4 m, with home plate and if each length of the base is 27.4 m, and the baseball player ran to third base,Then, the baseball player is 27.4 feet away from home plate (where he started)below the horizontal.
Explanation:
the sum of vectors we were able to find the displacement of the corridor for each case
a) d = 38.75 m
b) d = 27.4 m
c) d = 0 m
given parameters
the distance of each side of the square r = 27.4mto find
the distance in three casesA) a double
B) A triple
c) A home run
The displacement is a vector for which, in addition to the module, it has a direction, so it must be taken into account for the calculations. In the exercise, set a reference system with the x-axis in the direction from Home to first base and the y-axis from home to third base.
To find the displacement we use the Pythagoras theorem
d = [tex]\sqrt{d_x^2 + d_y^2}[/tex]
if the displacements are on a single axis the addition reduces to arithmetic addition
Let's analyze the different cases:
a) hit a double
runner goes from home plate to second base
d = [tex]\sqrt{r^2+r^2}[/tex]Ra r² + r²
d = r √2
d = 27.4 √2
d = 38.75 m
b) hit a triple
Runner goes from home plate to third base
the distance from home to first base x = r
the distance from second to third base x = -r
the negative sign indicates that it is going in the opposite direction
d = [tex]\sqrt{(r-r)^2 +r^2}[/tex]
d = r
c) Hit a home run
in this case, the runner returns to the starting point, because of a vector the displacement is zero
d = 0
In conclusion, applying the sum of vectors we were able to find the displacement of the corridor for each case
a) d = 38.75 m
b) d = 27.4 m
c) d = 0
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True or false your vocal cords act like a guitar string when it comes to sound
Answer:
True
Explanation:
A 1 cm2 silicon solar cell has a saturation current of 10A and is illuminated with sunlight yielding a short-circuit photocurrent of 25 mA. Calculate the solar cell efficiency and fill factor.
Answer:
The answer is "13% and 83%"
Explanation:
The highest power is generated for:
[tex]\to \frac{dP}{dV_a}=0= I_s(e^{\frac{V_m}{V_t}} -1)-I_{Ph} +\frac{V_m}{V_t} I_s e^{\frac{V_m}{V_t}}[/tex]
Where voltage, [tex]V_m[/tex], was its calculated maximum power wattage. This same following transcend national stable coins the power output:
[tex]\to V_m=V_t \ In \frac{1+\frac{I_{ph}}{I_s}}{1+\frac{V_{m}}{V_t}}[/tex]
The accompanying consecutive values of [tex]V_m[/tex] are done utilizing iteration and an initial value of 0.5 V:
[tex]\to V_m = 0.5,\ 0.542,\ 0.540 \ V[/tex]
Efficacy is equivalent to:
[tex]\eta = |\frac{V_{m} I_{m}}{p_{in}}| =\frac{0.54 \times 0.024}{0.1}=1.3\%[/tex]
Currently, [tex]I_m[/tex] was calculated with the formula of voltage [tex]V_m[/tex] (4.6.1) as well as the sun is presumed to produce [tex]100 \frac{mW}{cm^2}[/tex] of power.
The fulfillment factor is equal to:
fill factor[tex]= \frac{V_{m} I_{m}}{V_{oc}I_{sc}}= \frac{0.54 \times 0.024}{0.62 \times 0.025}=83\%[/tex]
where open circuit tension of equations (4.6.1) and I = 0. is calculated. The current is equal to the total current of the photo.
If an object has a mass of 45 g and a volume of 5 mL, what is that object’s density? Show your calculation?
PLEASE HELP EMERGENCY!!!
Which statement represents a correct hierarchical organizational relationship
among living things?
A Organs make up cells and cells make up atoms.
B Atoms make up tissues and tissues make up cells.
C Cells make up organs and organs make up tissues.
D Cells make up tissues and tissues make up organs.
Answer:
Living things are highly organized and structured, following a hierarchy that can A molecule is a chemical structure consisting of at least two atoms held In larger organisms, cells combine to make tissues, which are groups of An organ system is a higher level of organization that consists of functionally related organs.
Explanation:
Living things are highly organized and structured, following a hierarchy that. A molecule is a chemical structure consisting of at least two atoms held In larger organisms.
What is Living organisms?Cells combine to make tissues, which are groups of An organ system is a higher level of organization that consists of functionally related organs.
The fact that all living things are composed of cells—which are regarded as the foundation of life—is what first distinguishes them from other types of organisms. The remarkable thing about cells is that, despite their small size, they can join together to build extremely vast structures.
Multicellular organisms are extraordinarily sophisticated creatures with amazing cellular organization. This organization starts deep within your DNA and reaches all the way up to you as an individual.
Therefore, Living things are highly organized and structured, following a hierarchy that. A molecule is a chemical structure consisting of at least two atoms held In larger organisms.
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Can someone help me pls?
The gravitational pull of the Moon is responsible for visible changes on the surface of Earth. Which of the following is caused by the pull of the Moon's
gravity?
1: Change of seasons
2: Movement of clouds
3: High and low tides
4: Building of mountains
Answer:
3: High and low tides
Explanation:
Tides can be defined as the rise and fall of water level in water bodies such as lakes and oceans due to the gravitational force of attraction exerted by the moon on earth. The side closest to the moon creates a bulge of water known as high tide. Low tides are generally experienced when a sea level is not within the bulge.
Additionally, they are caused by the cycle of rising and falling ocean water that are repeated approximately every 12.5 hours.
In conclusion, the gravitational pull of the Moon is responsible for visible changes on the surface of Earth. Thus, the pull of the Moon's gravity causes high and low tides on planet Earth's surface.
Answer:
High and low tides
Explanation:
Tides can be defined as the rise and fall of water level in water bodies such as lakes and oceans due to the gravitational force of attraction exerted by the moon on earth. The side closest to the moon creates a bulge of water known as high tide. Low tides are generally experienced when a sea level is not within the bulge.
Additionally, they are caused by the cycle of rising and falling ocean water that are repeated approximately every 12.5 hours.
In conclusion, the gravitational pull of the Moon is responsible for visible changes on the surface of Earth. Thus, the pull of the Moon's gravity causes high and low tides on planet Earth's surface.
A penny is made of the element zinc
plated with the element copper; a nickel
is made of a mixture of the elements
nickel and copper. Some isotopes of
various elements are listed below by
their atomic number and mass num-
ber. Use the periodic table on p. 131
to identify which atoms you would
expect to find in the penny, which you
would expect to find in the nickel,
which you would expect to find in
both, and which you would expect to
find in neither coin.
Answer:
Explanation: what is the question?
A fast moving river carrying away soil is an example of what
Answer:
erosion
muddy water and soil being carried away by a fast-moving river is erosion
Eve makes a simple series circuit using a battery and two light bulbs. Through how many paths will the current be able to travel in her circuit?
A) 1
B) 2
C) 3
D) 4
Answer:
2
Explanation:
and two light bulbs. Through how many paths will the current be able to travel in her circuit?
A) 1
B) 2
C) 3
D) 4
There are mainly two paths by which the current can travel in the circuit. Bulbs in an electrical circuit can be connected in series or in parallel arrangement. Thus, the correct option is B.
What is Current?
The current is the flow of charge (electron) in a circuit. When the two light bulbs are connected in series with two batteries, then each of the bulb shares the voltage drop equally with the other bulb. So, each bulb has half of the total voltage across the circuit. Each bulb has the voltage of one battery across it in the circuit. Each light bulb glows similar to the other if were connected to a single battery.
A series circuit can be constructed by connecting the light bulbs in such a manner that charge can flow in only a single pathway. More light bulbs can be added to the same line without any branching point. With the increase in the number of light bulbs added, the brightness of each light bulb gradually decreases as the current divides further.
Therefore, the correct option is B.
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In a chemical reaction,sodium sulphate and barium chloride are mixed to form barium sulphate(a precipitate)and sodium chloride. (i)What are the reactants in the above reaction? (ii)What are the products?
Answer:
i) The reactants are sodium sulphate and barium chloride
ii) The products are barium sulphate and sodium chloride.
Explanation:
In chemistry, a chemical reaction occurs when one or more chemical substances usually referred to as REACTANTS undergoes some processes and is converted to one or more different substances known as PRODUCTS.
From the question:
Na2SO4 + BaCl2 ⟶ 2NaCl + BaSO4
The above balanced equation represents the chemical reaction between sodium sulphate and barium chloride. Both are the reactants because they where the substances that passed through a process ( this involves the breaking of bond that held them together).
The PRODUCTS are barium sulphate and sodium chloride because they are the substances that presented at the end of the chemical reaction.
Your family drives to the mountains one weekend. You drive 55miles for the first hour and the next 3 hours
you travel a distance of 180miles. What's your average speed for the 4 hours ?
Answer:Jane drives at an average speed of 45 mph on a journey of 135 miles.
Explanation: