Answer:
object stop
Explanation:
Silver, copper and
iron wires of equal
dimensions are
connected in parallel
in the circuit. Which
wire has the
strongest
electric
current?
Please I need your help
Answer:
the answer would be strongest because just took this question
Explanation:
Which statement on ecosystems is true ?
They all have the same number of living things They all contain a mix of different living things. They all have the same number of species.
Answer:
B
Explanation:
they contain a mix of different species
Which items would have this energy transformation: chemical energy -> mechanical energy?
Answer:
La transformación energética, transformación de la energía, conversión energética o conversión de la energía es el proceso de cambiar la energía de un tipo de energía a otro. En física, la energía es una cantidad que proporciona la capacidad de realizar un trabajo (por ejemplo, levantar un objeto) o proporciona calor. Además de ser convertible, de acuerdo con la ley de conservación de la energía, la energía es transferible a una ubicación u objeto diferente, pero no se puede crear ni destruir.
La energía en muchas de sus formas se puede utilizar en procesos naturales o para proporcionar algún servicio a la sociedad, como calefacción, refrigeración, iluminación o realizar trabajos mecánicos para operar máquinas. Por ejemplo, para calentar una casa, el horno quema combustible, cuya energía potencial química se convierte en energía térmica, que luego se transfiere al aire de la casa para elevar su temperatura.
Explanation:
please help ill give brainly and heart !!!
in which month would you LEAST likely expect a hurricane?
A ) July
B ) August
C ) October
D ) February
Answer:
July
Explanation:
In july you would expect least hurricane
What is the formula of the compound formed when Beryllium reacts with the sulfate ion?
A. Be(S)2
B. Bes
C. Bez(SO4)2
D. BeSO4
Answer:
the formula of the compound formed when Beryllium reacts with the sulfate ion is BeSO4
Explanation:
2. Grace drives her car 40 km in 75 minutes. What is her average speed in
kilometers per hour?
Answer:
k
Explanation:
k
Please help, I keep getting an answer that isn't an option.
A student does 6 J of work compressing a spring by 0.04 m. What is the spring constant of the spring?
(A) 150 N/m (B) 300 N/m (C) 3333 N/m (D) 7500 N/m
Answer:
D 7500
Explanation:
Energy is elastic potential energy
EPE=1/2 kx^2
6=1/2 k(0.04)^2
6=k (0.0016/2)
k = 6/0.0008 = 7500
what is lateral shift
Answer:
Lateral Shift When a ray of light is incident on a glass slab, the emergent ray coming out of the slab will be parallel to the incident ray. The perpendicular distance between the direction of incident ray and emergent ray is called the lateral Shift. It is denoted by d.
Explanation:
Hope this helped :)
Newton's 2nd Law describes the relationships between force, mass and acceleration. What is the exact
relationship between force and acceleration if mass were to remain constant?
Newton’s second law of motion seems simple enough: Push on an object of a certain mass, and it accelerates based on the amount of force and mass. A small force with a large mass results in a slow acceleration, and a large force with a small mass gives a fast acceleration. What happens when there’s no force? A force of zero on any mass gives zero acceleration. If the object is standing still, it remains still; if it’s moving, it continues to move at the same speed and direction. Keep in mind that several forces can be involved at the same time. For example, you tie a rope around a boulder and pull with all your might. There are force and mass, but the boulder doesn’t budge, so acceleration is zero. The force of friction between the boulder and the ground cancels out the force of your pull. You need a much bigger force, such as from a tractor, to move the boulder.
Answer:
Force ∝ Acceleration
Explanation:
Force is directly proportional to acceleration. This is because as you increase force, the acceleration increases.
An 85 kg clock initially at rest on a horizontal floor requires a 680 N horizontal force to set it in motion. After the clock is in motion, a horizontal force of 540 N keeps it moving with a constant velocity. Find μs and μk between the clock and the floor.
A force of 680 N is required to get the clock moving, so the maximum static friction is also f ˢ = 680 N. The clock is at rest, so the net vertical force acting on it is 0, and by Newton's second law,
n - mg = 0
where
n = magnitude of the normal force
m = 85 kg = mass of the clock
g = 9.8 m/s² = magnitude of the acceleration due to gravity
So we have
n = mg = (85 kg) (9.8 m/s²) = 833 N
which means the static friction f ˢ is such that
f ˢ = µ ˢ n
Solving for the coefficient of static friction gives
µ ˢ = (680 N) / (833 N) ≈ 0.82
After it starts moving, a force of 540 N is required to keep the clock going at a constant speed, so the kinetic friction is also f ᵏ = 540 N. Then
f ᵏ = µ ᵏ n
and solving for the coefficient of kinetic friction yields
µ ᵏ = (540 N) / (833 N) ≈ 0.65
What line in the sky is created by our revolution around the Sun?
Answer:
Ecliptic
Explanation:
You asked for the term that is used to describe Earth going around the sun
The ecliptic is the path the sun, moon, and planets take across the sky as seen from Earth. It best defines the plane of the Earth's orbit around the sun. The imaginary line can best be visualized in the days just before full moon.
Hope it helped
If your brother changes the channel, you will change it back, so then he will change it, then you will change it, etc, etc. This situation is a metaphor for which of Newton's laws of motion?
-The law of inertia
-The law of action-reaction
-The law of acceleration
-None of the above
when you feel bad about what u have done to someone how does it make u feel 20 points
Answer: it makes me guilty and sad mad and sometimes reflecting what I should have said or done better
Explanation:
PLEASE HELP AND I WILL GIVE BRAINLIEST
Mac and Suzanne cut holes in the bottom of two cups and connect them with a string. When Mac whispers into one cup,
Suzanne can hear him through the other. What is the best reason to explain why this happens?
A
Sound waves produce an echo.
B
Sound waves can travel great distances.
Sound waves travel better through solids than gases.
D
Sound waves from whispering have a higher frequency
Answer:
Answer is D
Explanation:
The sound travels along the string as a longitudinal wave and ultimately vibrates the bottom of the receiving cup. The cup transmits the sound into the air around the listener's ear, allowing her to hear the speaker.
Mac and Suzanne cut holes in the bottom of two cups and connect them with a string. When Mac whispers into one cup, Suzanne can hear him through the other. This is because sound waves produce an echo. Thus, the correct option is A.
What is an echo?In audio signal processing and acoustics, an echo can be defined as a reflection of sound waves which arrives at the listener with a delay in time after the direct sound waves. The delay in this is directly proportional to the distance of the reflecting surface from the source and that of the listener.
An echo is the repetition of sound which results due to reflection from a surface. We cannot hear an echo until and unless there is a reflecting surface present beyond a specified distance from the source of the sound wave. The minimum distance which is required to hear an echo is 17.2 meters. The sensation of sound persists for the time period of 0.1 second.
Therefore, the correct option is A.
Learn more about Sound here:
https://brainly.com/question/29707602
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PLZ HELP
There is a bell at the top of a tower that is 50 m high. The bell weighs 25 kg. 1 point
The bell has potential energy. Calculate it. *
All foods can be classified as either good or bad for my body
Answer:
False
Explanation:
While most foods can be classified as "good" or "bad" for our bodies, some foods are more complicated. Some healthy foods could be bad for you if you're allergic to them, and other foods could have both positive and negative effects on your body.
How does monkeys make babys?
A 1.5 kg mass attached to an ideal spring oscillates horizonatlly with an amplitude of 0.30 m. The spring constant is 85 N/m. What is the period of the mass's motion?
Answer:
T = 0.83 seconds
Explanation:
Given that,
The mass attached to the spring, m = 1.5 kg
The amplitude of the spring, A = 0.3 m
The spring constant of the spring, k = 85 N/m
We need to find the period of the mass's motion. The time period in spring mass system is given by :
[tex]T=2\pi \sqrt{\dfrac{m}{k}} \\\\T=2\pi \sqrt{\dfrac{1.5}{85}} \\\\T=0.83\ s[/tex]
So, the period of the mass's motion is 0.83 seconds.
A 50 kg person rows his boat towards the east with 5 N of force. The stream pushes his rowboat to the south with 12 N of force. What is the acceleration of the boat?
Answer:
The acceleration of the boat is:
[tex]a=0.26\: m/s^{2}[/tex]
Explanation:
We need to find the total force acting on the boat, first of all.
We have one force (F1) towards the east and a second force (F2) towards the south, forming a right triangle.
So, we can use the Pythagorean theorem to find the magnitude of the total force (F(tot))
[tex]F_{tot}=\sqrt{F_{1}^{2}+F_{2}^{2}}[/tex]
[tex]F_{tot}=\sqrt{5^{2}+(-12)^{2}}[/tex]
[tex]F_{tot}=13\: N[/tex]
Applying Newton's second law, we can find the acceleration of the boat.
[tex]F_{tot}=ma[/tex]
[tex]a=\frac{F_{tot}}{m}[/tex]
[tex]a=\frac{13}{50}[/tex]
[tex]a=0.26\: m/s^{2}[/tex]
I hope it helps you!
Juan is receiving bills from the hospital even though his insurance company said his procedure would be covered in full. What strategies can help him work successfully with his insurance company and the hospital?
Be stern and raise your voice during calls, and ask for a printed summary of each conversation
Jot down notes before and after making each call, and avoid calling during business hours when people are busy
Save all emails and bills, and follow up to make sure people did what they said they would do
Trust that others will follow through with what was agreed upon, and wait for others to call you
==> Jot down notes before and after making each call, and avoid calling during business hours when people are busy.
==> Save all emails and bills, and follow up to make sure people did what they said they would do.
1. What is the kinetic energy of a puma with a mass of 80 kg and a velocity of 20 m/s?
Answer:
16,000 J
Explanation:
Kinetic Energy = [tex]\frac{1}{2}[/tex] × mass × [tex](velocity)^{2}[/tex]
= [tex]\frac{1}{2}[/tex] × 80 × [tex]20^{2}[/tex]
= [tex]\frac{1}{2}[/tex] × 80 × 400
= [tex]\frac{1}{2}[/tex] × 32000
= [tex]\frac{32000}{2}[/tex]
= 16,000 J
A pickup truck has a box sitting loose in its bed. The box has a mass of 2.5 kg and the coefficient of static friction between the box and the pickup bed is 0.8. The mass of the truck is 3150 kg and its tires have a coefficient of static friction with the road of 0.9.
The truck is currently going through a roundabout with a radius of 30m. How fast can the truck go and not have the box slide on the truck bed? Please answer in m/s.
A boat goes from 12m/s to 72m/s in 12 s. what is the boat's acceleration?
Which of the following, by scientific definition is NOT work? lifting boxes of books, pedaling on your bike, holding a book over your head, pushing a chair across the room
Answer:
holding a book over your head
Which type of force is the weakest?
A. Van der Waals forces
B. Hydrogen bonds
C. Metallic bonds
D. lonic bonds
Answer:
D
Explanation:
I think those are weakest
Answer:
D. ionic bonds
Explanation:
ionic bonds are the weakest as its between ions
hydrogen bonds are stronger as it is electrostatic force so its strong
metallic bonds are the sharing of many detached electrons between many positive ions they call it a glue because they are hardly breakable
What the wavelength of a microwave whose frequency is 2.75 * 10 ^ 10 ? Use c=3.00*10^ 8 m/s
Answer:
0.011 m
Explanation:
From the question,
The speed of a moving wave is related as
c = λf.................... Equation 1
Where c = speed of the wave, λ = wave length, f = frequency.
make λ the subject of equation in equation 1 above
λ = c/f................ Equation 2
Given: c = 3.0×10⁸ m/s, f = 2.75×10¹⁰ Hz
Substitute theses values into equation 2
λ = 3.0×10⁸/(2.75×10¹⁰)
λ =
Answer:
1.09 * 10^-2
Explanation:
I got it right when I did it. This is the right answer. I tried the other answer and was wrong that the other guy posted.
How many valence electrons are in an atom of fluorine?
two
seven
nine
seventeen
a 2kg book falls off the top of a 2.3m bookshelf. how much work is required to lift the book back to it's original position? gravity acceleration is 9.58 m/s ²
Answer:
44.068 J
Explanation:
From the question,
Work(W) = mgh............... Equation 1
Where m = mass of the book, g = acceleraton due to gravity, h = height.
Given: m = 2 kg, h = 2.3 m, g = 9.58 m/s²
Substitute these values into equation 1
W = 2×2.3×9.58
W = 44.068 J
Hence the work required to lift the book is 44.068 J
A non -viscous incompressible fluid is pumped steadily into the narrow end of a long tapered pipe and emerges from the wide end . The pressure at the input is greater than at the output . A possible explanation is :
Answer:
v₂ =[tex]( \frac{r_1}{r_2})^2 \ v_1[/tex]
Explanation:
This phenomenon is explained by the continuity equation in fluids
v₁A₁ = v₂A₂
where the subscript 1 is for the input narrow part and the subscript 2 for the wide part
v₂ = [tex]\frac{A_1}{A_2} v_1[/tex]
consider the cross section at each point
A₁ = π r₁²
A₂ = π r₂²
we substitute
v₂ =[tex]( \frac{r_1}{r_2})^2 \ v_1[/tex]
therefore the exit velocity is less than the entrance velocity of the fluid.
We can also analyze the situation using Bernoulli's equation
P₁ + ρ g v₁² + ρ g y₁ = P₂ + ρ g v₂² + ρ g y²
if we assume a horizontal system y₁ = y₂
P₁-P₂ = ρ g (v₂² - v₁²)
not henti Or rule 34 Just a motive to tell your bullies
Answer:
wow
Explanation: