Answer:
Assuming that you meant the final velocity of 50 m/s was reached in 10 s, the answer would be 5 m/s^2.
Explanation:
[tex]V_{f} = V_{i} + at[/tex]
So we update that with the values that we have.
[tex]50 = 0 +a(10)[/tex]
then simplify that using algebra to solve for a and we get 5 m/s^2
What is a wind turbine often used for?
Answer:
Wind Turbines are used in a variety of applications from harnessing offshore wind resources to generating electricity for a single home.
Explanation:
A diverging lens has a focal length of 18.6 cm.
An object 1.49 cm in height is placed 353 cm
in front of the lens.
1.Locate the position of the image.
Answer in units of cm.
2.What is the magnification?
3.Find the height of the image.
Answer in units of cm.
Hi!!I need sum help with this bc my teacher told me it had to be more specific!
I will award brainiest for the beat answer!Thank you!
Question:
Use your knowledge of waves in the graph shown to determine the frequency of wave C. What does it tell you about the speed of the wave?
"Frequency" means how often something happens. When you say how many times it happens every SECOND, you can call the number Hertz, or Hz.
In the graph, there are 10 vibrations in 10 seconds, 20 of them in 20 seconds, and 30 in 30 seconds. This should pretty much shout at you "THERE'S ONE VIBRATION EVERY SECOND !". When you realize that, you can say the frequency of the vibration is 1 Hz.
The graph tells us nothing about the speed of the waves. I suspect there's another picture to the question that you didn't include. If the other part shows the wavelength, then we could figure out the speed. But with just what you're showing us, we can't.
How do you solve the resultant force and direction.
Answer:
To find the resultant force subtract the magnitude of the smaller force from the magnitude of the larger force. The direction of the resultant force is in the same direction as the larger force. A force of 5 N acts to the right, and a force of 3 N act to the left. Calculate the resultant force.Which of these materials would result in horizontally polarized light?
OA.
O B.
OC.
OD.
OE.
reflection from a tall aluminum pole
refraction from a glass sheet
reflection from an iron shed
reflection from wet asphalt
refraction from a water surface
Two charges separated by one meter exert a 9 N force on each other. If the charges are pushed to a 3 meter separation, the force on each charge will be 3 N.
True or False?
Answer:
False
Explanation:
The formula of force that exists between two charges is expressed as;
F = kq1q2/r²
If two charges separated by one meter exert a 9 N force on each other, the;
9 = kq1q2/1²
9 = kq1q2 ..... 1
If the charges are pushed to a 3 meter separation, then;
F = kq1q2/3²
F = kq1q2/9 .... 2
Divide both equations;
9/F = (kq1q2)/ kq1q2/9
9/F = kq1q2 * 9/ kq1q2
9/F = 9
F = 9/9
F = 1N
Hence if the charges are pushed to a 3 meter separation, then the force on EACH charge will be 1N. Hence the answer is False
One advantage that sexual reproduction has over asexual reproduction is the ability to produce genetic diversity. Why is genetic diversity an advantage?
Answer:
Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population. Genetic variation is advantageous to a population because it enables some individuals to adapt to the environment while maintaining the survival of the population
Explanation:
Source: the internet
A roller coaster car is at the top of a 65.0 m Crest. If the roller coaster car has 987000 J of potential energy what is its mass
Study the image below.
A straw in a glass of water. The straw appear to be broken and shifted at the top of the water.
The straw appears to "bend" because of
Answer:
Study the image below.
A straw in a glass of water. The straw appear to be broken and shifted at the top of the water.
The straw appears to "bend" because of
✔ refraction.
Explanation:
Study the image below.
A straw in a glass of water. The straw appear to be broken and shifted at the top of the water.
The straw appears to "bend" because of
✔Study the image below.
A straw in a glass of water. The straw appear to be broken and shifted at the top of the water.
The straw appears to "bend" because of
✔. refraction
.
Calculate the BMI for a person who is 5'1" and weighs 172 pounds before you calculate the BMI you must convert the height into meters and the weight into kg you can use the internet to convert them
The answer for this are
32.9
.03
184.86
It’s PE
Answer:
It is 32.9
Explanation:
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Which one, mass or weight, would change if you were to travel to another planet or moon?
Answer:
The answer is weight.
Mass is constant, your mass, height and width won’t change. So that leaves weight.
particle has 17.5 joules of kinetic energy and 12.5 joules of gravitational potential energy at one point during its fall from a tree to the ground. An instant before striking the ground, how much mechanical energy — rounded to the nearest joule — does the particle have?
Answer:
Em = 30 J
Explanation:
The principle of conservation of mass and energy is one of the most important in physics, it establishes that energy cannot be created just by transforming it.
Therefore, the mechanical energy at a point is the same throughout the movement, only in some parts it will be kinetic, in others potential and in the intermediate points a mixture of the two, but the total value is always the same.
Em = K + U
Em = 17.5 + 12.5
Em = 30.0 J
At the point just before touching the ground the mechanical energy is the same Em = 30 J
A 1.5 kg block moves at 4 m/s
Answer:
12 joules
Explanation:
I'm assuming you're looking for kinetic energy?? Kinetic energy is 1/2 mv^2. 4 squared is 16, 16 times 1.5 = 24. 24/2 = 12.
Do you hear sounds around you as one frequency at a time or as many frequencies at once?
Answer:
The commonly stated range of human hearing is 20 Hz to 20 kHz. Under ideal laboratory conditions, humans can hear sound as low as 12 Hz and as high as 28 kHz, though the threshold increases sharply at 15 kHz in adults, corresponding to the last auditory channel of the cochlea.
Explanation:
hope it help
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Answer:
20 Hz to 20 kHz. Humans can hear sound as low as 12 Hz and as high as 28 kHz, though the threshold increases sharply at 15 kHz.
Explanation:
learned this in physics about 2 years ago and its stuck with me ever since lol. sorry i am not the best at explaining lol
calculate the acceleration due to gravity on the International Space Station (which orbits at a distance of 408,000 m)
Answer:
none
Explanation:
none cause it's in space
How are reversibility, time, and entropy connected
Answer:
As one goes "forward" in time, the second law of thermodynamics says, the entropy of an isolated system can increase, but not decrease. ... Thus, entropy measurement is a way of distinguishing the past from the future.
Explanation:
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Answer:
a then c then b
Explanation:
pls help i’ll give brainliest if you give a correct answer!!
Answer:
Friction force is the correct answer.
Actually I'm wrong the person who has commented is correct
Please help with these questions!!!!!
Answer:
4.c
5.d
6.c
Explanation:
please answer I will give brainleist
Which model shows how a comet's tail changes during its orbit?
Third model shows how a comet's tail changes during its orbit...
mark brainliest
Is it possible to have acceleration at constant velocity
Answer:
No
Explanation:
It is not possible to have acceleration at constant velocity
#HopeItHelps
Think about the types of forces holding the atoms together in different chemicals. Are there any patterns that can be drawn from the data? Explain.
Hello. You did not enter the data to which this question refers, which makes it impossible for it to have an exact answer. However, I will try to help you in the best possible way.
The forces that hold the elements together are called intermolecular forces. They are formed by covalent bonds between the molecules and can be called: dipole-induced (occurs between nonpolar molecules that have a negative pole and a positive pole) and dipole-dipole (occurs between polar moileculas, except when hydrogen is present).
A skateboarder rolls down the sidewalk with an initial velocity of 0 m/s. If her acceleration is
1.5 m/s”, how long will it take her to reach the bottom 120m away?
Answer:
80m/s
Explanation:
to find it you have to work it out by using the formula distance divided by speed to find time.
The time taken by the skateboarder to reach the bottom 120m away is 80 sec.
What is Acceleration?Acceleration may be defined as the rate of change of the velocity of an object with respect to time. Accelerations are vector quantities as it has both magnitude and direction.
When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing. If an object is speeding up and moving in a positive direction, it has a positive acceleration.
According to the question,
Speed of the skateboarder = 1.5 m/s
The total distance needs to be traveled = 120m
Total time taken =?
The Formula for calculating time is as follows:
Speed = Distance/time. Time = Distance/speed = 120/1.5 = 80 seconds.Therefore, the time taken by the skateboarder to reach the bottom 120m away is 80 sec.
To learn more about Acceleration, refer to the link:
https://brainly.com/question/460763
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When the chemical name of a compound is being written, the subscripts will determine the symbols. elements. prefixes. suffixes.When the chemical name of a compound is being written, the subscripts will determine the symbols. elements. prefixes. suffixes.
Answer:
C. Prefixes
Explanation:
I took the quiz on edge
Answer:
C is correcting taking test now
Explanation:
A book is resting on a table. The table is raised on one end to an angle of 15° to the floor. If the book remains at rest, what keeps the book from sliding?
A. rolling friction
B. static friction
C. sliding friction
D. fluid friction
Answer: Static Friction
Explanation: As you tilt the book you know that it will stay fixed to start with, but eventually, once the angle is large enough, the book will start to slide. It is the static friction force that holds the book in place at small angles of tilt.
The book remains at rest if A book is resting on a table. The table is raised on one end to an angle of 15° to the floor due to static friction, so option C is correct.
What is static friction?An item is kept at rest by the force of static friction. The phrase "static friction" can be defined as "the friction people perceive when they attempt to move a stationary object on a surface, but without actually causing any relative motion between the body and the surface it is on."
You can predict that the book will initially remain fixed when you tilt it, but once the angle is sufficiently large, it will finally begin to slide. The book is held in place at slight tilt angles by static friction force.
The formula for the coefficient of static friction is μ = tan θ, here θ is the angle of inclination if the angle is bigger the friction force is more but at 90° when the book is vertical then the friction force will not work on the book
Therefore, the book remains at rest if A book is resting on a table. The table is raised on one end to an angle of 15° to the floor due to static friction.
To know more about static friction:
https://brainly.com/question/17237604
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Which is larger, 12 kilometers or 7.5 miles? Show you’re work plz ASAP!!!!!
Answer:
there are just a bit over 1.6 km in a mile so 7.5*1.6=12. something so there is just a little bit more distance in 7.5 miles
Explanation:
An eagle flying 10 meters per second swoops down to the ground to catch a snake speed velocity or acceleration
Answer:
Velocity because it has both magnitude (10m/s) and direction (to the ground).
Explanation:
Velocity can be defined as the rate of change in displacement (distance) with time. Velocity is a vector quantity and as such it has both magnitude and direction.
Mathematically, velocity is given by the equation;
[tex]Velocity = \frac{distance}{time}[/tex]
In this scenario, an eagle flying 10 meters per second swoops down to the ground to catch a snake. Therefore, this is an example of velocity.
HELP + extra pts // Two 10-m high diving platforms are at opposing ends of a 30-m pool. How fast must two clowns run straight off their boards if they want to collide at the middle of the pool and the surface of the water?
Explanation:
The clowns need to leave the diving boards with enough horizontal velocity such that each travels 15 m (half the width of the pool) in the same time that they fall (vertically) the 10-m from the top of the diving board.
We'll assume no force acts on the clowns horizontally to slow them down while they are in flight. And we'll assume that only gravity acts on the clowns vertically.
We can treat the horizontal and vertical components separately. This will help simplify the problem.
Let's start with the vertical displacement. Let's say the clown is dropped from a height of 10-m. How long would it take them to fall that distance?
Using our equations of motion (with constant, linear acceleration), we can solve for this time. [tex]d = vt + \frac{1}{2} at^2[/tex]
Where d is the distance travelled, v is the initial velocity, a is acceleration, and t is time.
If the clown is dropped, they have an initial velocity of 0 (zero). We assumed only gravity acts on the clown, so acceleration equals the gravitational acceleration on earth. [tex]a = 9.8m/s^2[/tex]
The distance the clown travels is 10-m from the diving board to the surface of the water.
Let's solve. [tex]10 = 0*t + \frac{1}{2} (9.8) t^2 \rightarrow 20/9.8 = t^2 \rightarrow t = \sqrt{20/9.8}[/tex]
Now that we know time, we can calculate how fast the clown needs to be running when they leap from the diving board to cover a distance of 15-m (Remember, half the width of the pool.)
Using our equations of motion, we know that [tex]d = vt + 0.5at^2[/tex]
We assumed no forces act horizontally on the clown, therefore a = 0. We just need to solve for v. Substituting in the time we just solved for, we get something like this. [tex]15 = v \sqrt{20/9.8}[/tex]
I'll leave it to you to solve this equation.
Why do you think that this type of fossil is called a print fossil?
Answer:
Fossils are the remains of plants, animals, fungi, bacteria, and single-celled living things that have been replaced by rock material or impressions of organisms preserved in rock.
Answer ☝ on pic that is non print fossil of dinousor
Answer ☝ on the pic is print fossil of turtle
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