Answer:
0.33m/[tex]s^{2}[/tex] East.
Hope this helps you. Do mark me as brainliest.
one way we can care for our ear
keep your ear clean....
Good luck on your assignment and enjoy your day!
what is the frequency of a wave that had a wavelength of 15m and is traveling at 135 m/s
Three vectors A,B and C are such that A=B+C and their magnitudes are 5,4 and 3 respectively.find the angle between A and C
Answer:
B = A - C
=> B² = A² + C² - 2AC.cos(A,C)
=>
[tex]cos(a.c) = \frac{a {}^{2} + c {}^{2} - b {}^{2} }{2ac} = \frac{5 {}^{2} +3 {}^{2} - 4 {}^{2} }{2.5.3} = \frac{3}{5} [/tex]
=> angle between A and C = 53.13⁰
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
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
PLEASE HELP While the Earth is revolving around the sun, less direct sunlight is reaching the Northern Hemisphere than the Southern Hemisphere. What season is it in the Northern Hemisphere?(1 point)
winter
autumn
spring
summer
Answer:
Winter
Explanation:
Earth Rotates about an axis
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.
HELPPP PLS BESTIES A pattern of stars that has been named is called a constellation. One winter evening, Jason found the star called Sirius in the constellation called Canis Major.
If Jason came outside again a few hours later, what would the stars in Canis Major look like?
A. The pattern would be smaller because the stars moved closer together.
B. The pattern would change because each star would have moved in a different direction.
C. The pattern of stars would appear to be in the same place in the sky.
D. The pattern of stars would appear to have moved together across the sky.
Answer:
D) Since the stars would move from East to West just as the Sun and Moon do.
Can anyone answer this please?
am soo confused what is conclusions in physics
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
1-Which is a true statement?
The nucleus is found in the center of atoms and contain protons and electrons
The nucleus is found in the center of atoms and contain protons and neutrons
Electrons have a neutral charge
Neutrons have a negative charge
2-What is the role of electrons within an atom?
Electrons are in the nucleus and have a negative charge
Electrons are in the nucleus and have a positive charge
Electrons are outside nucleus and have a negative charge
Electrons are outside nucleus and have a positive charge
Answer:
1 - The nucleus is found in the center of atoms and contains protons and neutrons.
2 - Electrons are outside (orbit) the nucleus and have a negative charge.
Explanation:
Protons are positively charged.
Neutrons are neutral.
Electrons are negatively charged.
I hope that helps!! ^-^
Which is an example of a non-contact force?
A. A woman pulls open a door.
B. A magnet pulls an item toward it.
C. A student pushes his chair in at his desk.
D. A rolling ball slows down from friction
! Will give brainliest if you help !
Answer:
B - magnet pulls an item toward it.
Explanation:
It's the answer trust bro
Answer:
B.
Explanation:
Because your not physically touching the item getting pulled towards the magnet. hope this helps
A dart in a toy dart gun is pressed 4 cm against a spring. if it has 1.5 J of stored potential energy what is the spring constant?
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
2. Calculate the kinetic energy of a football being launched downfield by Patrick Mahomes. The football has a mass of .5 kg and is thrown at a velocity of 25 m/s. Find the kinetic energy.
Answer:
K.E = 156.25 Joules.
Explanation:
Given the following data;
Mass = 0.5kg
Velocity = 25 m/s
To find the kinetic energy;
Kinetic energy can be defined as an energy possessed by an object or body due to its motion.
Mathematically, kinetic energy is given by the formula;
[tex] K.E = \frac{1}{2}MV^{2}[/tex]
Where;
K.E represents kinetic energy measured in Joules.
M represents mass measured in kilograms.
V represents velocity measured in metres per seconds square.
Substituting into the equation, we have;
[tex] K.E = \frac{1}{2}0.5*25^{2}[/tex]
[tex] K.E = 0.25 * 625 [/tex]
K.E = 156.25 Joules.
These steps are followed when using the half-life of carbon-14 to determine the age of an object that contains carbon. what is the correct order of these steps
Answer:
the answer is b
Explanation:
a p e x
The correct order of these steps is according to option B i.e. C, A, B
What is half life?Half life is the time taken by a radioactive material for the radioactivity of to reduce by half its original value.
The half life equation is:
A = A₀ (½)^(t / T)
where A is the final amount, A₀ is the initial amount, t is the amount of time, and T is the half life.
These steps are followed when using the half-life of carbon-14 to determine the age of an object that contains carbon.
The correct steps are -
Measure the ratio of parent and daughter nucleiUse the half life of carbon-14 to determine the number of half lives that have passed.Use the number of half lives passed to determining the age of the object.Thus, the correct option is B i.e. C, A, B
Learn more about half life.
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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
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!!
Planet RMM-1 has a mass of 28,500 kg and the star it revolves around has
a mass of 2.20 x 10^8 kg. If the star emits a gravitational force of 39 N how
far away are the two objects from each other?
Gravitational force = G · (mass₁) · (mass₂) / (distance)
(distance²) = G · (mass₁) · (mass₂) / (Gravitational force)
G = 6.67 x 10⁻¹¹ n-m² / kg² (the "gravitational constant")
Distance² = (6.67 x 10⁻¹¹ n-m² / kg²) (28,500 kg) (2.2 x 10⁸ kg) / (39 N)
Distance² = (6.67 · 28,500 · 2.2 x 10⁻³ N-m²) / (39N)
Distance² = (418.209 N-m²) / (39N)
Distance² = 10.72 m²
Distance = 3.275 meters
An absurd scenario, but that's by golly what the math says with the numbers provided. I guess it's a teeny tiny planet orbiting 3.275 meters outside a teeny tiny black hole.
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
find the instantaneous velocity at 1 s . can anyone help with c-h!!!
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 chemical formula represents the composition of a mineral that usually exhibits fracture, not cleavage?
Mg3Si4010(OH)2
NaCi
CaCo3
(Fe,Mg)2Si04
Answer:
(Fe,Mg)2SiO4
Explanation:
Trust
The chemical formula that represents a mineral which exhibits fracture is
( D) : ( Fe, Mg )2SiO₄
Minerals that exhibit fracture break across its curved surfaces due to the absence of weak points along the minerals. Such breaks occur irregularly and produce irregular shapes.
Fractures occur in fine-grained minerals and also some crystalline minerals. and from the options the chemical formula that represents a mineral which exhibits fracture is ( Fe, Mg )2SiO₄.
Hence we can conclude that The chemical formula that represents a mineral which exhibits fracture is ( Fe, Mg )2SiO₄
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A skydiver has jumped out of an aircraft but has not yet opened her
parachute.
Which of these statements best describes what is happening?
1. She is pushed towards the Earth by the force of gravity.
2.She is pulled towards the Earth by the force of gravity.
3.She is pulled towards the Earth by air resistance.
4. She is pushed towards the Earth by air resistance.
Answer:
She is pulled towards the Earth by the force of gravity.
Explanation:
As a skydiver jumps, gravity pulls them towards the earth, accelerating their fall. At the same time, air resistance is pushing back on them and increases at higher speeds. ... At this point, they will have reached terminal velocity and will fall at a constant speed, no longer accelerating.
The statement (2) She is pulled towards the Earth by the force of gravity is correct.
What is gravitational force?The gravitational force is a force that attracts all mass-bearing objects. The gravitational force is referred to as attractive because it always strives to pull masses together rather than pushing them apart.
A skydiver has jumped out of an aircraft but has not yet opened her parachute.
As we know, the gravitational force is given by:
[tex]\rm F = \dfrac{Gm_1m_2}{r^2}[/tex]
Where, G is the gravitational constant.
m1 and m2 are masses.
r is the distance between the masses.
The statement (2) She is pulled towards the Earth by the force of gravity best describes what is happening.
Because the force of gravity pulled the skydiver.
Thus, the statement (2) She is pulled towards the Earth by the force of gravity is correct.
Learn more about the gravitational force here:
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PLEASE HELP!!!!! ILL GIVE BRAINIEST IF ANSWER IS CORRECT!!!!
An electron is pushed eastwards with a force of 1.64 x 10-21 N when placed in an electric
field. Determine the
(a) magnitude and
(b) direction of the electric field.
Answer: 1.02 x 10^-2 N/C to the east
Explanation:
Hi,
To find the magnitude of the electric field in this problem, you simply have to use the formula F = qE
F = Force
q = charge of the particle
E = magnitude of the electric field
Here, we are told that a force is being acted on an electron and we aren't told any specific quantity of charge for the electron. Therefore, we can assume that the charge of the electron will be its conventional charge of 1.602 x 10^-19 C
We are also given the force which is 1.64 x 10^-21 N
We solve for E
E = F/q
We plug in
E = (1.64 x 10^-21 N)/(1.602 x 10^-19 C)
E = 1.02 x 10^-2 N/C
The direction will be the east because the angle didn't change.
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:
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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
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
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