Answer:
the maximum height reached by the marble is 11.84 m.
Explanation:
Given;
mass of the marble, m = 0.02 kg
extension of the string, x = 0.08 m
force applied to the string, F = 58 N
Apply the principle of conservation of energy;
elastic potential energy = gravitational potential energy
¹/₂fx = mgh
[tex]h = \frac{Fx}{2mg} \\\\h = \frac{58 \ \times \ 0.08}{2 \ \times \ 0.02 \ \times \ 9.8} \\\\h = 11.84 \ m[/tex]
Therefore, the maximum height reached by the marble is 11.84 m.
Why do scientists track the energy in a system?
The supply of energy and of each needed chemical element restricts a system operation -- for example , without inputs of energy ( sunlight ) and matter ( carbon dioxide and water ) , a plant cannot grow. Hence , it is very informative to track the transfers of matter and energy within , into , or out of any system under study.
Hope it helps
Scientists track the energy in a system for analyzing and comparison of the efficiencies of the different systems, to know whether one system has some advantage over another
What is thermal energy?Thermal energy also referred to as heat energy, can be described as the type of energy in which heat is transmitted from one body to another body as a result of its molecular movements.
The accepted unit for calculating energy is the joule (J). The unit of measurement for electric energy known as the kilowatt-hour (kWh) should be mentioned among the most popular ones (in fact it is used to calculate electricity bills). The Terawatt/hour (TWh), or one billion kW/h, is used to determine a large power plant's production or a nation's consumption.
Thus, To analyze and compare the efficiencies of various systems and determine whether one system has an advantage over another, scientists monitor the energy in a system.
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DESPERATE WILL GIVE BRAINLSIT AND THANKS
Hydrogen fuel cells produce electricity by combining ___________ and ___________atoms.
Question 5 options:
hydrogen and oxygen
carbon and oxygen
hydrogen and carbon
Hello!
My best guess would be hydrogen and oxygen.
hopefully this helps!
there is more role of the moon than the sun to occur tides in oceans?why?
7. If a hummingbird hovers 30 cm in front of a window, what will it see?
Answer:
it will see the window???
The formula v=fλ describes how sound can change. Please explain what these components are, and how they affect one another.
Answer:
Explanation:
Electromagnetic waves is a propagating medium used in all communications device to transmit data (messages) from the device of the sender to the device of the receiver.
An electromagnetic spectrum refers to a range of frequency and wavelength that an electromagnetic wave is distributed or extends. The electromagnetic spectrum comprises of gamma rays, visible light, ultraviolet radiation, x-rays, radio waves, and infrared radiation.
Wavelength can be defined as the distance from one peak to the next peak. Also, this distance is equal to the distance from one trough of a wave to another.
Mathematically, the speed of a wave is given by the formula;
V = fλ
Where;
V is the speed of the wave.
f is the frequency of the wave.
λ is the wavelength of the wave.
The speed of a wave (wave speed) is directly proportional to the frequency of a wave.
This ultimately implies that, an increase in the speed of a wave would cause an increase in the frequency of a wave and vice-versa.
According to Hooke's law, the force necessary to stretch or compress a spring is proportional to what value?
Answer:
displacement
Explanation:
Hookes Law describes the elastic properties of materials only in the range in which the force and displacement are proportional (displacement = change in length).
which of the following statements is a reasonable conclusion about the Arctic ecosystem? a)The number of offspring produced is an abiotic limiting factor because it affects the number of prey that predators can eat. b)The number of predators is an abiotic limiting factor because it affects the number of consumers that can eat producers. c)Temperature is an abiotic limiting factor because it affects the amount of sea ice available for animals to live on. d)Sunlight is an abiotic limiting factor because it affects the number of producers available for other organisms to eat. Please please helpppp!
Answer:
A is the answer
Explanation:
two charges create 8.00 N of electric force on each other. if you increase their distance to twice its original value, how much electric force do they exert on each other
Answer:
2.00 (right on acellus)
Explanation:
doubling the distance between two charges makes F (8.00) quarter, so you would just do 8.00*1/4
can someone help me with this??
Answer:
C
Explanation:
Have a nice day :)
A spring with constant 559 N/m is 0.14 meters long when not stretched or compressed. You compress the spring until it is 0.07 meters long. How many joules of elastic potential energy are stored in the compressed spring
Answer:
1.46755 Joules
Explanation:
Applying,
E = 1/2ke²......................... Equation 1
Where E = Elastic potential energy of the spring, k = spring constant, e = extension
From the question,
Gieven: k = 559 N/m, e = (0.14-0.07) meters = 0.07 meters
Substitute these values into equation 1
E = 1/2(599×0.07²)
E = 2.9351/2
E = 1.46755 Joules
Explain what cardiovascular exercise is in your own words. Explain the benefits of it and how it is different than muscular strength. Give 3 examples of cardiovascular exercises/activities
2. Two vectors with magnitudes of 1 meters and 3 meters cannot have a resultant of (5.0 points)
3 meters
4 meters
O meters
2 meters
Answer:
the correct answer is 3 meters
A simple machine has velocity ratio 3, what did you mean
Answer:
A simple machine having a velocity ratio of 3 simply means that the ratio of the distance moved by effort to the distance moved by load is equal to 3.
Explanation:
A simple machine can be defined as a type of machine with no moving parts but can be used to perform work.
Basically, a simple machine allows for the transformation of energy into work. The six simple machines are;
I. Inclined plane.
II. Screw.
III. Wheel and axle.
IV. Lever.
V. Wedge.
VI. Pulley.
Mathematically, the velocity ratio of a simple machine is given by the formula;
[tex] Velocity \; ratio = \frac {Distance \; moved \; by \; effort}{Distance \; moved \; by \; load} [/tex]
Hence, a simple machine having a velocity ratio of 3 simply means that the ratio of the distance moved by effort to the distance moved by load is equal to 3.
Which object is NOT a form of chemical energy?
A 3.0-kilogram steel block is at rest on a frictionless, horizontal surface. A 1.0-kilogram lump of clay is propelled horizontally at 6.0 meters per second toward the block, as shown in the diagram below.
Answer:
1.5 m/s
Explanation:
Upon collision, the clay and steel block stick together and move to the right with a speed of 1.5m/s.
What is conservation of momentum principle?When two bodies of different masses move together each other and have head on collision, they travel to same or different direction after collision.
The external force is not acting here, so the initial momentum is equal to the final momentum. For inelastic collision, final velocity is the common velocity for both the bodies.
m₁u₁ +m₂u₂ =(m₁ +m₂) v
Substitute the values for m₁ = 3kg, m₂ =1kg, u₁ =0 and u₂ =6 m/s, then the final velocity will be
3x0 +1x6 = (3+1)v
v = 1.5 m/s
Thus, the clay and steel both have final velocity is 1.5 m/s.
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a
A student shakes the end of
a rope
with
frequency of 1.5 Hz, causing waves with a
wavelength of 0.8 m to travel along the rope.
What is the velocity of the waves?
Answer:
1.2m/s
hope this helps!
The required velocity of the waves is 1.2 meters per second.
What is wavelength?Wavelength is a fundamental property of waves, including electromagnetic waves like light and radio waves, as well as other types of waves, such as sound waves or water waves.
Here,
The velocity of a wave can be calculated using the equation:
Velocity = frequency × wavelength
In this case, the frequency is 1.5 Hz and the wavelength is 0.8 m. Therefore, the velocity of the waves is,
Velocity = 1.5 Hz × 0.8 m = 1.2 m/s
So the velocity of the waves is 1.2 meters per second.
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If you have a spaceship that can go 20% of the speed of light, how long would it take to travel 200 light-years?
Answer:
1498962290
Explanation:
Two bumper cars each have a mass of 112 kg. Connie's car is moving at 3.12 m/s, and Bonnie's car is at rest when Connie runs into her. After the collision, Bonnie's car lurches forward at a speed of 1.32 m/s. Connie has a mass of 70 kg, and Bonnie has a mass of 82 kg. What is the post collision speed of Connie's car?
Answer:
Explanation:
fdddd
According to the law of conservation of energy, which statement must be
true?
O A. The total energy in a system can only increase over time.
B. Energy that is transformed is neither destroyed nor created.
C. There is only one form of energy
D. Energy can change only from nuclear to chemical.
Answer:
B
Explanation:
Energy is neither created nor destroyed, the law of conservation states that.
what is the formula of effort
Answer:
Hey mate.....
Explanation:
This is ur answer.....
The formula to calculate force is: force = mass x acceleration, or F = m x a, where force and acceleration have both magnitude and direction.
Hope it helps!
Brainliest pls!
Follow me! :)
Which of the following has the most energy?
X-rays
radio waves
ultraviolet radiation
infrared radiation
I WILL MARK YOU THE BRAINLIEST NO LINKS
What happens to molecules when the temperature reaches absolute zero?
They form bonds with other, nearby molecules.
All of their motion stops completely.
They begin to vibrate slowly.
They move so fast that they can't be observed.
2) all of their motion stops completely
Answer:
a their motion stops completely
Explanation:
Hope this helps :)
Find all the missing elements:
Answer: 80
Explanation:
Answer:
C=20
a = 10.8
c= 4.3
Explanation:
Sound travels at about 360 meters/sec. What is the wavelength of sound with a
frequency of 1500 Hz?
Answer:
0.24 m
Explanation:
Given:
Wave velocity ( v ) = 360 m / sec
Frequency ( f ) = 1500 Hz
We have to calculate wavelength ( λ ):
We know:
v = λ / t [ f = 1 / t ]
v = λ f
= > λ = v / f
Putting values here we get:
= > λ = 360 / 1500 m
= > λ = 36 / 150 m
= > λ = 0.24 m
Hence, wavelength of sound is 0.24 m.
An electromagnetic wave has a frequency of 6.0 x 1018 Hz. What is the
wavelength of the wave? Use the equation 2 = and the speed of light as 3.0
V
x 108 m/s.
A. 2.0 x 10-26 m
B. 5.0 x 1026 m
C. 2.0 x 1010 m
D. 5.0 x 10-11 m
The wavelength of the wave is 5.0 x 10^-11 m which is option D.
Wavelength calculation.
To get the wavelength (λ) of the electromagnetic wave given we will first link it up with its relationship to its frequency (f) and also to the speed of light (c) given by the formula below.
λ = c/f
Where,
c is 3.0 x 10^8 m/s
f is 6.0 x 10^18 Hz
C/f= 3.0 x 10^8 m/s 6.0 x 10^18 Hz
wavelength = 5.0 x 10^-11 m
so, the wavelength is 5.0 x 10^-11 m.
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When you are describing the rate that a race car goes around a track, should you use the term speed or velocity to describe the motion
Answer:
Speed
Explanation:
Speed is a description of how fast an object moves; velocity is how fast and in what direction it moves. In physics, velocity is the speed in a given direction.
Answer:
speed
Explanation:
Speed is a description of how fast an object moves; velocity is how fast and in what direction it moves. In physics, velocity is speed in a given direction. When we say a car travels at 60 km/h, we are specifying its speed. When we say a car moves at 60 km/h to the north, we are specifying its velocity.
I NEED THIS ASAP I WILL MARK YOU THE BRAINLIEST LINKS WILL BE REPORTED
put the correct terms with the correct pictures
Answer:
Mass: Choices 1, 2, 4, 6
Weight: Choices 3, 5, 7, 8
Hope this helped! Please mark Brainliest if correct.
a ball dropped from rest falls freely intil it hits the ground with the speed of 20 m/s . the tine furing which the ball is in free fall is approximately
Answer:
5m/s
Explanation:
10 joules of work (energy) is required to transfer 2 coulombs of charge from X to Y. What is the potential difference between these two points?
Answer:
5v
Explanation:
W = 10J ;Q = 2C ;V = ?
So,potential between x and y is 5v
Hope it will help you if not so please sorry.
A car has a speed of 20 m/s. If the speed of the car increases to 30 m/s in 5 seconds, what is the car’s acceleration?
2
Explanation:
2 times 5 is 10/ 20+10=30
