Answer:
Explanation:
Q₂ is at the origin and Q₁ is at 12 cm on x -axis
Force between Q₁ and Q₂
= K x Q₁ x Q₂ / .12 where k is a constant equal to 9x 10⁹
Force F = 9 x 10⁹ x Q₁ x Q₂ / .12²
= 625 x 10⁹ x Q₁Q₂ N
This is the force each one exerts on other . So electric force on Q₂ due to Q₁ is 625 x 10⁹ x Q₁Q₂ N . Its direction is towards left as both will repel each other.
b)
Electric field due to charge Q₂ at - 2 cm
= 9 x 10⁹ x Q₂ / .02²
= 22500 x 10⁹ x Q₂ N/C , towards left .
Electric field due to charge Q₁ at - 2 cm
= 9 x 10⁹ x Q₁ / .14²
= 459.18 x 10⁹ x Q₁ N/C , towards left
As both the fields are to the same direction
Net field = 75 x 10⁹ x Q₂ + 459.18 x 10⁹ x Q₁
10⁹ ( 22500 x Q₂ + 459.18 x Q₁ ) N/C .
Direction will be towards left.
How are igneous rocks formed?
They are formed from cooled magma.
They are hot magma the moment it is expelled from a volcano.
They are formed over many years of pressure and heat within Earth.
They are formed from sediments that collected in ocean beds.
Answer:
What are igneous rocks?
Igneous rocks (from the Latin word for fire) form when hot, molten rock crystallizes and solidifies. The melt originates deep within the Earth near active plate boundaries or hot spots, then rises toward the surface. Igneous rocks are divided into two groups, intrusive or extrusive, depending upon where the molten rock solidifies
A wire has resistivity of 0.12 homes per metre.
a)Find the resistance of 25m of wire.
b)Find the length of this wire that has resistance 22ohms
Answer:
(a) The resistance of 25m of wire is 3 ohms
(b) the length of this wire that has resistance 22 ohms is 183.33 m
Explanation:
Given;
resistivity of the wire, ρ = 0.12 ohms per meter
(a) The resistance of 25m of wire is calculated as follows;
[tex]R = \rho L\\\\R = 0.12 \ \frac{ohms}{m} \times 25\ m\\\\R = 3 \ ohms[/tex]
(b) the length of this wire that has resistance 22 ohms is calculated as;
[tex]L = \frac{R}{\rho} \\\\L = \frac{22 \ ohms }{0.12 \ ohms/m} = 183.33 \ m[/tex]
HELPPP BESTIESSS An astronomer is studying two stars that have about the same size and brightness. From the Earth, one of the stars appears very bright in the night sky. The other star appears very faint and dim.
Why does one star appear to be brighter than the other?
A. The Earth is moving toward the brighter star.
B. The Earth is moving toward the dimmer star.
C. The Earth is farther from the brighter star.
D. The Earth is closer to the brighter star.
Answer:
If the stars are about the same size and brightness then the earth must be nearer to the stat that appears brighter, The stars movement, nearer or farther, would only effect the frequency received (redshift).
Answer:
D- The earth is closer to the bright star
Explanation:
If two stars have SAME brightness and size then that means the only point of difference is distance . Earth should be closer to the brighter star for the star to be bright.
I hope im right!!
Please help!
A river flows at a velocity of 3 km/h relative to the riverbank. A boat moves downstream at a velocity of 15 km/h relative to the river. What is the velocity of the boat relative to the riverbank?
Can you help me plzz ?
We are given:
Mass of the Crate(m) = 71 kg
Applied force(F) = 577 N
Resolving the applied force:
To solve this problem, we will first make a free-body diagram (attached)
The Applied force has been resolved into 2 components denoted by a thinner line and 'g' is the acceleration due to gravity
We found the values by using basic trigonometry
Finding the Normal Force:
Normal force is equal and opposite to the net force applied on the ground. So, we will subtract the vertical component of the applied force from the weight of the crate.
Normal force = mg - F*Sin(27°)
Normal force = [(71)*(9.8)] - [ (577)(0.454) ] [g = 9.8 m/s²]
Normal Force = 433.84 N
9. When Earth, the sun, and the moon are perfectly aligned, with Earth in the middle, which type of eclipse occurs? (1 point)
A. a partial lunar eclipse
B. a total lunar eclipse
C. a partial solar eclipse
D. a total solar eclipse
Answer:
B. a total lunar eclipse
When Earth, the sun, and the moon are perfectly aligned, with Earth in the middle, then the type of eclipse that occurs would be a total lunar eclipse, therefore the correct answer is option B.
What is an eclipse?When a planetary body passes in front of another planetary body and is visible from a third planetary body, an eclipse is created.
Based on the relative positions of the sun, moon, and earth at the time of the eclipse, there are various types of eclipses in our solar system.
For instance, a lunar eclipse occurs when the earth passes between the moon and the sun.
The sort of eclipse that would occur when Earth, the sun, and the moon are exactly lined up, with Earth in the middle, is a complete lunar eclipse, hence option B is the right response.
To learn more about the eclipse from here, refer to the link;
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Can anyone answer this please?
Why did Jim Bridger build a fort along the Oregon Trail?
AGave travelers a safe spot to hide from bears
B Offered protection to explorers against the British
C Rest stop and good spot for trading post
D Shelter for Native Americans during snowstorms
the resistance of an object to change its dynamic state called
Which of the following is NOT a natural source of light?
neon light
lightening
stars
fire
plssssssssss help i put 30 points pls answer correctly
it is scince
Answer:
neon light
all the others are natural phenomenon
of 72.0 units. If the mass of Object 1 is halved AND the mass of object 2 is tripled, then the new gravitational force will be units.
Answer:
youtg jugre contact coming call details
A wave traveling at 5.00x10^4 meters per second has a wavelength of 2.50x10^1 meters what is the frequency of the wave
Answer:
Frequency of the wave = 2 x 10³ hz
Explanation:
Given:
Velocity of wave = 5 x 10⁴
Wavelength = 2.5 x 10¹
Find:
Frequency of the wave
Computation:
Frequency of the wave = Velocity of wave / Wavelength
Frequency of the wave = [5 x 10⁴] / [2.5 x 10¹]
Frequency of the wave = 2 x 10³ hz
The frequency of a wave traveling at 5.00 x 10⁴ meters per second and a wavelength of 2.50x10¹ meters is 2 × 10³ Hz
HOW TO CALCULATE FREQUENCY:
The frequency of wave can be calculated by dividing the speed of the wave by its wavelength.λ = v/f
Where,
V= velocity of the wavef = frequencyλ = wavelengthAccording to this question, a wave is traveling at 5.00 x 10⁴ m/s and has a wavelength of 2.50 x 10¹ meters. The frequency can be calculated as follows:f = v ÷ λf = 5 × 10⁴ ÷ 2.5 × 10¹f = 2 × 10³HzTherefore, the frequency of a wave traveling at 5.00 x 10⁴ meters per second and a wavelength of 2.50x10¹ meters is 2 × 10³Hz.Learn more at: https://brainly.com/question/19601903?referrer=searchResults
PLEASE HELP 45 POINTS!!!! BRAINLIST IF YOU GIVE GOOD REAL ANSWER!!!
Answer:
what is the question?
Explanation:
If you could cut the paper in half 20 times, would the paper be bigger or smaller than the following: 1 hair--------------------, a germ-------------------- and an atom---------------------.
Do you think you could keep cutting the paper forever?-----------------------------------------
------------------------------------------------------------------------------------------------------------
Science
Answer:
Maybe???
Explanation:
but how big is the paper?
but I think even the paper is super big, the ending result will still be too small to observe …
Classify the following as a type of kinetic or potential energy. Check the
appropriate box.
Help please..
Answer:
Kinetic and potential
potential (didnt say its moving)
Kinetic and potential
kinetic
kinetic
kinetic
potential
kinetic and potential
kinetic (might have potential)
kinetic
Tions: Encircle the letter that corresponds
you answer
Homest
mga kab
1. The framework of a house provides the house with both support and structure allowing it to
stand. Which system provides those functions in humans?
A. Skeletal System
C. Integumentary System
B. Muscular System
D. Digestive System
2. What 2 systems are MOST DIRECTLY responsible for your ability to stand up for long periods of time, walk,
and sit down?
A. Integumentary and Excretory C. Circulatory and Respiratory
B. Digestive and Reproductive D. Musculoskeletal
3. The soft, fatty tissue that fills the inside of most bones and makes red blood cells and many white blood
cells.
A. Bone marrow B. Fat
C. Heart
D. Skin
4. Skin, hair, and nails make up the
system.
A. muscular system
C. digestive system
HONE
B. integumentary system
D. skeletal system
5.
the body's largest organ, contains melanin, which gives skin color that protects it from
the sun's rays.
A. Skin
B. Tendon
C. Nerves
D. Joint Ignition
6. If the portion of the cerebellum was damaged as a result of trauma, what effect would this person
likely experience?
A. rapid breathing
C. trouble in maintaining balance
B. changes in body temperature D. partial or incomplete memory loss
7. It is involved in the fight or flight response.
A. parasympathetic B. autonomic C. sympathetic D. somatic
8. Which of the following organs is made up the central nervous system?
A. muscles and bones
C. interneurons and motor neurons
B. brain and spinal cord D. sensory neurons and motor neurons
9. The following are parts of neuron, EXCEPT
A. nucleus
B. cell body
C. axon
D. dendrites
10. Which of the following is not controlled by the cerebrum.
A. judging a beauty contest C. thinking of your assignment
B. smelling a bad odor
D. Breathing
11. The main function of musculoskeletal system is to
A. support the body, allowing motion, and protecting vital organs
B. release waste product from the body
C. maintain heat and temperature of the body
D. send and receive different stimuli from the sense organs
12. Muscles in the body work
A. individually
B. in group
C. in pairs D. as needed
13. The bones provide
A. food for the body.
B. proper nourishment.
C. stability of the body.
D. protection against all kinds of diseases.
14. The skeletal portion of the system serves as the main storage of
Answer:
1. A Skeletal System
2. D Musculoskeletal System
3. A Bone Marrow ( specifically red bone marrow where red blood cells produce and yellow bone marrow where fats and other tissues produce)
4. B Integumentary System
5. A Skin
6. C (Cerebellum is a part of the brain responsible for making postural adjustments in order to maintain balance).
7. C
8. B
9. A
10. D (Breathing was controlled by Medulla Oblongata)
11. A
12. B
13. B
14. Minerals specifically calcium and phosphorus.
how to the eath turn
Explanation:
Earth rotates in prograde mation.As viewed from the north pole star Polaris.Earth turns counterclockwise,, the north pole is point in the northern,, Hemisphere where Earth's Axis of rotation meets it's surface
it turn from west to est
Which of the following statements concerning moral development is not true?
Please select the best answer from the choices provided
O Children generally become better at telling the difference between moral and conventional transgressions
as they age.
Children commonly use internal standards to reason about behavior at an early age
C What is determined as right or wrong is universally defined and agreed upon.
Parental views on what is right and wrong greatly influence children's moral reasoning.
Mark this and retuth
Answer:
C- what is determined as right or wrong is universally defined and agreed upon.
Explanation:
Correct on edge
Answer:
C. What is determined as right or wrong is universally defined and agreed upon.
Explanation:
Edg. 2021
All other options are true statements while this one is not.
find the instantaneous velocity at 1 s . can anyone help with c-h!!!
A 12.0kg object is pushed with a horizontal force of 6.0N East across a table. If the force of
friction is 2.0N, what is the acceleration of the object?
Answer:
0.33m/[tex]s^{2}[/tex] East.
Hope this helps you. Do mark me as brainliest.
You can use the curved part of a spoon as a mirror because it ________ light.
Which best completes the statement?
reflects
refracts
absorbs
enhances
Answer:
Reflects
Explanation:
A metal spoon looks very shiny because its surface is very smooth, which is why it acts like a mirror and reflects light very well.
You can use the curved part of the spoon as a mirror because it reflects light. Thus, the correct option is A.
What is reflection of light?Reflection is the phenomena of light, when the ray of light bounces off an object. If the surface is smooth and shiny, just like a glass, water or polished metal surface, the light will reflect at the same angle as it hit the surface of the object. This is called as specular reflection.
The laws of reflection states that the incident ray, the reflected ray, and the normal ray all lie at the same point of incidence, and lie in the same plane of the surface. And, the angle of incidence is equal to the angle of reflection of light.
Therefore, the correct option is A.
Learn more about Reflection here:
https://brainly.com/question/30270479
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Suppose the equation of the velocity of a car at any given time is Vx= 30m/s+(2.5m/s^3)t^2 Find the change in the velocity of the car during time t1= 4s and t2= 5.5s (a) 70.00 m/s (b) 105.63 m/s (c) 35.63 m/s (d) 175.63 m/s
Answer:
time=4, answer choice A
time=5.5, answer choice B
Explanation:
This is taken from the kinematic equation, v=vo+(1/2)at^2
Velocity at time 4 = 30+(2.5)(4)^2
Velocity at time 5.5 = 30+(2.5)(5.5)^2
Velocity at time 4 seconds = 70 m/s
Velocity at time 5.5 seconds = 105.63 m/s
The Stronger the force that is exerted on an object,the ____ the change in velocity will be.
A greater
B lesser
C weaker
D stronger
Answer:
answer is stronger the change in velocity
what is the frequency of a wave that had a wavelength of 15m and is traveling at 135 m/s
The word “virtual” refers to something that exists in effect but not in actual fact. How does this definition relate to the virtual image you see of yourself in a plane mirror?
Answer:
The image seems to be behind the mirror, but nothing is really there.
Explanation:
Sample response edge 2021
.....hhhep
Truee or falsee???
True(?
I'm not sure but I think it should be
Two charged particles, with charges q1 = q and q2 = 4q are located at a distance d = 2cm apart on the x axis A third charged particle, with charge q3 = q is placed on the x axis such that the magnitude of the force that charge 1 exerts on charge 3 is equal to the force that charge 2 exerts on charge 3. Find the position of charge 3 when q = 10n C
Answer:
0.667 cm
Explanation:
|F_1on3| = |F_2on3|
k×q1×q3/x^2 = k×q2×q3/(d-x)^2
q1/x^2 = q2/(d-x)^2
(d-x)^2/x^2 = q2/q1
(d-x)/x = sqrt(q2/q1)
(2 - x)/x = sqrt(4×q/q)
(2 - x)/x = 2
2 - x = 2x
2 = 3x
x = 2/3
x= 0.667 cm
in a isovolumetric process the is constant.
Answer:
An isothermal process is a change of a system, in which the temperature remains constant: ΔT = 0.
Explanation:
:)
12. A diagram of the Earth revolving around the sun shows that less direct sunlight is reaching the Northern Hemisphere than the Southern Hemisphere. What season is it in the Northern Hemisphere? (1 point)
A. winter
B. spring
C. summer
D. autumn
it depends it can be either spring or winter
Light travels through air faster than it travels through water. How would
the light refract differently if the keys were in air, and the boy was looking
at them from underwater?
Answer:
The fastest thing in the whole universe is the speed of light in a vacuum (like outer space!), clocking in at a great 2.99 x 108 m/s. Light travels in waves, and we call this traveling propagation. Propagation of waves has both a speed and a direction, called the velocity. The velocity of light changes depends on the material it travels through.
I hope it is helpful. Please mark as brilliant