Answer:
A lunar eclipse is when the Earth passes between the moon and the sun, casting a shadow on the moon. This can only occur when the sun, Earth and moon are aligned exactly, or very closely so, with the Earth in the middle.
This is actually an earth science question. What is the exact elevation of each point?
Answer:
A = 100m
B = 120m
C = 170m
D = 160m
E = 190m
F = 145m
G = 130m
H = 170m
I = 100m
J = 95m
K = 100m
Explanation:
A = 100m
B = 120m
C = 170m
D = 160m
E = 190m
F = 145m
G = 130m
H = 170m
I = 100m
J = 95m
K = 100m
The contour intervals are 10m apart, anything exactly between 2 contour lines is 5m, and the cut lines are depressions so insisted of going up they go down.
Does the scalar addition obey ordinary addition rules?
Explanation:
In scalar addition we have to do only the sum of magnitude as we know that the scalar quantities don't have direction.
since it is the scalar quantity the direction will be same for all the magnitudes.
Answer:
In scalar addition we have to do only the sum of magnitude as we know that the scalar quantities don't have direction...
since it is the scalar quantity the direction will be same for all the magnitudes.
on the other hand if it was a vector addition then it should be with two different directions which are considerable show the resultant vector needs to be calculated by vector addition method.
what happen to the weight of a body when it is falling freely under the action of gravity?
Answer:
Explanation:
where W-weight, m-mass of the object and g-acceleration produced due to the earth's gravity. ... This happens because the normal reaction force exerted on the object in the lift is equal to zero, and normal force equals to mg, which in turn equals the weight of the object.
Clois what is the weight of a body in the earth, if its weig is 5Nin moon?
Explanation:
because the moon has less mass than earth, the force due to gravity at the lunar surface is only about 1/6 that on earthso,the weight of a body on earth is 6×5N =30N
What benefits does preforming this investigation in the physical world have over the computer simulation?
Please help!!
Explanation:
Can be safer and cheaper than the real world. Able to test a product or system works before building it. Can use it to find unexpected problems. Can speed things up or slow them down to see changes over long or short periods of time.
.
.
.
.
Answer:
"Performing this experiment in the physical world gives you more control over which parameters you can adjust. You also gain experience with scientific equipment and procedures. In addition, there may be flaws in the computer model, since no model is perfect."
Explanation:
edmentum
Which of the following is/are true? If caught in a rip current, swim directly towards shore, using the most powerful kick possible. If caught in a rip current, swim perpendicular to shore, until you are completely out of the rip current, then swim in towards shore. If caught in a rip current, swim parallel to shore, until you are completely out of the rip current, then swim in towards shore. Don't fight the rip current; relax and let it carry you closer to shore.
hi true false true false
the velocity of a body is increases from 10 m/s ti 15 m/s in 5seconds calculate its acceleration
Answer:
acceleration = v-u/ t
= 15-10/5
= 5/5
= 1 m/s2
Explanation:
hope this helped you.
Answer:
[tex]\boxed {\boxed {\sf 1 \ m/s^2}}[/tex]
Explanation:
Acceleration is the change in velocity over the change in time. Therefore, the formula for calculating acceleration is:
[tex]a= \frac{v_f-v_i}{t}[/tex]
Since the body's velocity increased from 10 meters per second to 15 meters per second 15 m/s is the final velocity and 10 m/s is the initial velocity. The time is 5 seconds.
[tex]v_f[/tex]= 15 m/s [tex]v_i[/tex]= 10 m/s t= 5 s[tex]a= \frac{ 15 \ m/s - 10 \ m/s}{5 \ s}[/tex]
Solve the numerator.
15 m/s - 10 m/s = 5 m/s[tex]a= \frac{ 5 \ m/s }{5 \ s}[/tex]
Divide.
[tex]a= 1 \ m/s/s[/tex]
[tex]a= 1 m/s^2[/tex]
The acceleration is 1 meter per second squared.
Which statement accurately describes dark matter?
Answer:
Dark matter is the term astronomers use to describe material in the universe that does not emit or reflect light and is, therefore, invisible.
Explanation:
Stars, nebulae, and galaxies are examples of luminous objects in the sky. However, luminous matter appears to make up only a small fraction of all the matter in the universe, perhaps only up to 10 percent.
what are the fundamental units involved in pascal
Answer:
FUNDAMENTAL UNITS INVOLVED ARE : NEWTON AND SECOND .FORMULA OF PRESSURE = P=F/Awhat is the chance of my hand going through a table when hitting it
Answer:
There is a 1 in roughly 5.2 to the 61st power chance that if you were to slap a table, all of the molecules in your hand and the table would miss each other and your hand would go through it.
Explanation:
I'm not sure but I hope it helps
It takes 2π radians (rad) to get around a circle, which is the same as 360°. How many radians are in 1°?
hello bro 54 is the correct answer
It takes 2π radians (rad) to get around a circle, which is the same as 360°. Thus, one degree is equal to (π/180)c or 0.0174533 radians.
What is radian?The radian is denoted by the symbol rad. It is the unit of angle in the International System of Units and it is the standard unit of angular measurement which is used in many areas of mathematics.
One radian is the angle which is subtended from the center of a circle which intercepts an arc equal in length to the radius of that circle.
Since, 180° = π radians
One radian = 180°/ π = 57.30°
There are 2π radians in a full circle = 360°
1° = 2π/ 360 = 0.0174533 radians
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A rod is made up of copper and wood joined together.
After the rod is heated at the join in the centre for about a minute, where would the lowest temperature be?
my views
Explanation:
Figure (8) shows a rod made up of copper and wood joined together. The rod is heated at the joint in the centre for about a minute. At which point – A, B, C or D, would it show the lowest temperature? PLEASE GIVE REASONS ALSO(MINIMUM 2)
Tick (3) the correct statement about electrostatic charges.
(a) Earthing causes positive charges to flow from the object to the ground.
(b) Similar types of electric charges attract one another.
(c) An electroscope is used to determine the presence of electrostatic charges.
Answer:
similar type of electric charges attract one another
I think this is a coorect staement
Answer:
C ) An electroscope is used to determine the presence of electrostatic charges
please halp me solve this question!
current in 3ohm resistor is 0.9
Explanation:
total
A stone is thrown into a pond. Five waves were made from the same source in 10 seconds.
The frequency of the wave for the stone thrown in the pond is 0.5Hertz.
The question does not specify what to calculate but we can look for the frequency of the wave.
Frequency is the number of oscillations completed in one second. This is interpreted as:
x oscillations = 1second
If Five waves were made from the same source in 10 seconds for a stone that is thrown inside the pond, then:
5 oscillations = 10seconds
Divide both expressions to get x (the required frequency)
x/5 =1/10
Cross multiply
10x = 5
Divide both sides by 10
10x/10 = 5/10
x = 1/2
x = 0.5Hertz
Hence the frequency of the wave is 0.5Hertz.
NB: The period of the wave is simply the reciprocal of the frequency.
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Examples of a/an _______ observation are 37 m, 9.37 s, and 100 mph.
These are exaxmples of a quantitative observation.
Measuring is the expression of an observed quantity in a number with a relevant unit that can be compared with other values of the same quantity.
It is not limited to physical quantities, but extends to a quantitative description of the whole of reality. Measurements are usually quantitative observations, and their results are expressed in
numerical values, and unitsLearn more about quantitative observations in https://brainly.com/question/12042148.
If a lever lifts a load four times the effort applied and effort distance is 5 times the load distance, calculate its efficiency
Answer:
If effort distance was 4 times, efficiency would be 100%.
Since it takes 5 times for effort distance, efficiency drops to output/input
output is 1*F
input is (1/4*F)*5
so: F/1/5*F/4 = 4F/5F = .8 or 80%
The efficiency of the lever is 80%.
To calculate the efficiency of the lever, we can use the formula for mechanical advantage and efficiency.
Mechanical Advantage (MA) is the ratio of the load (L) to the effort (E) in a lever system:
MA = Load / Effort
Given that the load is four times the effort applied:
Load = 4 * Effort
Also, the effort distance (dEffort) is five times the load distance (dLoad):
dEffort = 5 * dLoad
Now, we can write the formula for efficiency (η) of a lever system:
Efficiency (η) = (Mechanical Advantage / Ideal Mechanical Advantage) * 100%
The Ideal Mechanical Advantage (IMA) is the ratio of the effort distance to the load distance:
IMA = dEffort / dLoad
Substitute the given values into the IMA equation:
IMA = (5 * dLoad) / dLoad
IMA = 5
Now, we can calculate the Mechanical Advantage (MA) using the relationship between the load and effort:
MA = Load / Effort
MA = (4 * Effort) / Effort
MA = 4
Finally, we can calculate the efficiency (η):
Efficiency (η) = (Mechanical Advantage / Ideal Mechanical Advantage) * 100%
η = (4 / 5) * 100%
η = 0.8 * 100%
η = 80%
The efficiency of the lever is 80%.
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what type of simple machine is shown in the diagram?write the length and height of slope in it. Please help ASAP!!!
the machine shown in the diagram is called a tramp.
the height of the tramp is 5 and the length is 12
Answer:
Incline plane
5/12 rise/run
Explanation:
Incline plane
5/12 rise/run
in what condition does a body float
Answer:
if buoyant force is equal is equal to the weight of body then our body float. if density of our body is less than density of liqiud then our body float in water.
what is science and physics?
yeha avo.
Answer:
THIS IS YOUR ANSWER:
Science is a study of nature human beings plants animals chemicals and machines.
and pHySiCs is a part of science
✍️HOPE IT HELPS YOU ✍️
difference between effort distance and load distance
Answer:
Lever systems are simple machines that change or increase the input force that we apply to the load. The lever provides us with some mechanical...
Answer:
● Effort arm or Effort distance (ED): The perpendicular distance from the fulcrum to the point of effort is called effort arm.
● Load arm or Load distance (LD): The perpendicular distance from the fulcrum to the point of load is called load arm.
What is the total distance covered during its complete motion? (CCT TYPE) *
2 points
350 km
20/3 km
50 km
40/3 km
What is the SI unit of speed? ( CCT type) *
2 points
m/s
mm/s
m/ss
None of the above
. In which period is the bus decelerating? (CCT type) *
2 points
0-5 min
8- 12 min
11-19 min
5-10 min
Only answer who knows, don't spam. because I am in hurry.
Answer:
40/3
M/s
11-19
These are the answers
PRESS THE PHOTO NEED HELP!!! 30 POINTS
1:-
[tex]\\ \sf\longmapsto cos\Theta=\dfrac{B}{H}[/tex]
[tex]\\ \sf\longmapsto cos\Theta=\dfrac{4}{5}[/tex]
2:-
[tex]\\ \sf\longmapsto tan\Theta=\dfrac{P}{B}[/tex]
[tex]\\ \sf\longmapsto Tan\Theta=\dfrac{3}{4}[/tex]
Key Notes:-
P denotes to Perpendicular.B denotes to Base.H denotes to Hypotenuse.Answer:
Cos A = 4/5
Tan A = 3/4
Explanation:
Cos A = Adjacent/Hypotenuse = 4/5
Tan A = Opposite/Adjacent = 3/4
2. Why is walking seven days a week not recommended?
There is no time for recovery.
B. Too much of one thing can cause injury.
C. 1-2 days off a week is beneficial, even for advanced walkers.
D. All of the above
Answer:
c is the answer
hope it helped :)
Answer: C or B
Explanation: They both relate to the same thing
importance of estimation in our lives
In a game of tug of war, a rope is pulled to the left with a force of 75 N and to the right with a force of 102 N. What is the magnitude and direction of the net external force on the rope?
The magnitude and direction of the net external force on the rope will be 27 N towards the right.
What is force?Force is defined as the push or pull applied to the body. Sometimes it is used to change the shape, size, and direction of the body. Force is defined as the product of mass and acceleration. Its unit is Newton.
Force acting on the left , F₁= 75 N
Force acting on the , F₂=102 N
Net force (F)=?
The net force is found as;
[tex]\rm F=F_2-F_1\\\\ F= 102-75 \\\\ F= 27 \ N[/tex]
Hence, the magnitude and direction of the net external force on the rope will be 27 N towards the right.
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what are the two things that get their current from generator?
Answer:
Kinetic Generating Plants
Hydro-electric plants and wind-mills also convert energy into electricity. Instead of heat energy, they use kinetic energy, or the energy of motion. Moving wind or water (sometimes referred to as "white coal") spins a turbine, which in turn spins the rotor of a generator?
please help me with my question I will like and mark as brainliest for the first correct answer due tomorrow morning
Answer:
1845.26 ?
Explanation:
18.46 × 99.96= 1845.2616 = 1845.26
im not entirely sure though
Ley de Charles-.
1) En un recipiente hermético se tiene 150 ml de una sustancia gaseosa, a una temperatura de 115°C, esto como resultado de una reacción. ¿Cuál sería su volumen inicial, cuando su temperatura era de 100°C?
2) Al inicio cuando la temperatura es de 200°C, se tienen 350 ml de un gas “Y”. ¿Qué volumen se obtendrá si la temperatura se incrementa a 250°C?
Tomando en cuenta la Ley de Charles y la condiciones dentro del recipiente, tenemos las siguientes conclusiones con respecto al volumen del recipiente:
1) El volumen inicial del gas es 144.203 mililitros.
2) El volumen final del gas es 386.986 mililitros.
La Ley de Charles establece que el Volumen de un gas es directamente proporcional a su Temperatura, basados en este hecho, podemos resolver los problemas en cuestión mediante la siguiente relación matematica:
[tex]\frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}[/tex] (1)
Donde:
[tex]V_{1}[/tex] - Volumen inicial, en mililitros.
[tex]V_{2}[/tex] - Volumen final, en mililitros.
[tex]T_{1}[/tex] - Temperatura inicial, en Kelvin.
[tex]T_{2}[/tex] - Temperatura final, en Kelvin.
1) Si sabemos que [tex]V_{2} = 150\,mL[/tex], [tex]T_{2} = 388.15\,K[/tex] and [tex]T_{1} = 373.15\,K[/tex], entonces el volumen inicial del gas es:
[tex]V_{1} = \frac{T_{1}}{T_{2}}\times V_{2}[/tex]
[tex]V_{1} = \frac{373.15\,K}{388.15\,K}\times 150\,mL[/tex]
[tex]V_{1} = 144.203\,mL[/tex]
El volumen inicial del gas es 144.203 mililitros.
2) Si sabemos que [tex]T_{1} = 473.15\,K[/tex], [tex]V_{1} = 350\,mL[/tex] and [tex]T_{2} = 523.15\,K[/tex], entonces el volumen final del gas es:
[tex]V_{2} = \frac{T_{2}}{T_{1}}\times V_{1}[/tex]
[tex]V_{2} = \frac{523.15\,K}{473.15\,K}\cdot 350\,mL[/tex]
[tex]V_{2} = 386.986\,mL[/tex]
El volumen final del gas es 386.986 mililitros.
He aquí una pregunta relacionada con la Ley de Charles: https://brainly.com/question/21184611
(2) Why do spring balance shows wrong reading after they had been uses for a long time?
This is because of continuous usage, the wire loses its elasticity and dose not regain it original dimension
Answer:
When a spring balance has been used for a long time, the spring in the balance fatigued and there is loss of strength of the spring. In such a case, the extension in the spring is more for a given load and hence the balance gives wrong readings.
