Answer:
the magnetic field can be used to make electricity
Explanation:
Moving a magnet around a coil of wire, or moving a coil of wire around a magnet, pushes the electrons in the wire and creates an electrical current. Electricity generators essentially convert kinetic energy (the energy of motion) into electrical energy
.Roshan applied a force of 144 N to the side of a cube-shaped wooden block to slide it away from himself . Assuming that he applied the force on the entire surface of the side of the cube , each side measuring 4cm , what was the magnitude of pressure applied on the said surface ?
Area=side^2=4^2=16cm^2=0.0016m^2
Force=144N[tex]\\ \sf\longmapsto Pressure=\dfrac{Force}{Area}[/tex]
[tex]\\ \sf\longmapsto Pressure=\dfrac{144}{0.0016}[/tex]
[tex]\\ \sf\longmapsto Pressure=90000Pa[/tex]
This question can simply be solved by the use of the basic formula of pressure.
The magnitude of pressure applied on the surface is "90000 Pa" (OR) "90 KPa".
The pressure is defined as the force applied per unit area in the normal direction. The pressure applied on a surface can be given by the following formula:
[tex]Pressure=\frac{Force}{Area}\\\\Pressure=\frac{144\ N}{(0.04\ m)^2}[/tex]
where,
Area of Square Surface = Side² = (0.04 m)²
Therefore,
Pressure = 90000 Pa = 90 KPa
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Dean Potter is known for slacklinging across a 915 metter deep ravine in Yosemite National Park with no safety gear. If his mass is 77 kg, how much potential energy did he have?
Explanation:
answer 689910
M x G x H
mass = 77
G= 9.8
Meter = 915 this is the height
77 x 9.8= 754.6
754.6 X 915 = 689910 J
Dean Potter is known for slacklining across a 915-metter deep ravine in Yosemite National Park with no safety gear. If his mass is 77 kg then he has the potential energy of 691163.55 Joules
What is mechanical energy?As total mechanical energy is the sum of all the kinetic as well as potential energy stored in the system.
ME = KE + PE
As given in the problem Dean Potter is known for slacklining across a 915-meter deep ravine in Yosemite National Park with no safety gear. If his mass is 77 kg,
m =77 kg
h = 915 m
the total potential energy of the dean potter can be calculated withe the help of the formula of the potential energy
PE = mgh
PE = 77*9.81*915
PE = 691163.55 Joules
Thus, he would have the potential energy of 691163.55 Joules
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A car went 465km, how far did it go in meters
Answer:
465000 meters
Explanation:
kilometer to meter = ×1000
465 × 1000 = 465000
Answer:
465000 M
Explanation:
1Km = 1000m
465Km= (465)(1000)
465000
variation of gravity with depth ??
As we go down the earth, we are moving towards the centre of the earth therefore the distance between us and center of the earth reduces and hence there is reduction in force acting on us by earth i.e gravity.
plz answer please please plz
Answer:
Here,
density (d) = 1000 kg/m^3
gravity (g) = 10 m/ s^2
height (h) = 2m
Now,
liquid pressure = hdg
=2 x 1000 x 10
=20000 N/m^2
Thus, the liquid pressure is 20000 N/m^2
Regulation size of a Tennis racket cannot have a hitting surface larger then.
a.12.5 inches in width
b.11 inches in width
c. 11.5 Inches in width
d.12 inches in width
Answer:
C.
Explanation:
"A racquet can be a maximum of 29 inches long while the hitting surface (the head) cannot be more than 15.5 inches in length and 11.5 inches wide."
please help please please please
a planes average speed between two cities is 600 km/hr. if he takes 2.5 hrs. how far does the plane fly
Answer:
1500 hr
..............
A skydiver is falling with a force of 1500 N while the upward force of air resistance is 1000 N. The skydiver’s force is and
has a net force of .
The skydiver is
unbalanced; net force = 500 N; accelerating
unbalanced; net force = 500 N; at terminal velocity
balanced; net force = 1500 N; moves to the left
balanced; no net force; at terminal velocity
It will be unbalanced and at terminal velocity
Now
[tex]\boxed{\sf F_{net}=F_1-F_2}[/tex]
[tex]\\ \sf\longmapsto F_{net}=1500-1000[/tex]
[tex]\\ \sf\longmapsto F_{net}=500N[/tex]
Option b is correct
A student drops a rock off a 5.0 meter cliff. If we ignore air resistance, how long will it take the rock to strike the water below?
Answer:
0.71 s
Explanation:
The formula used will be the formula for a free falling object acted on by gravity.
Time/Period(T) = √[Length/Distance(L)]/[Acc'n due
to gravity(g)]
T = √[5m/9.8m/s²]
T = 0.71 s
Please help
STUDENT CENTER
FLORIDA SCIENCE
COMPREHENSIVE COURSE 3
Online Textbook Scavenger Hunt
Directions: Explore the digital textbook to find the following information:
1. Where do you access the course textbook from?
2. How many chapters does your textbook contain?
3. How many Units are there in the textbook?
4. Looking at the Lesson Resources in the landing page on the right, name two types of
resources you have access to.
5. What do you click on to see the book as you would physically?
6.
What is the name of Chapter 6?
7. Every chapter
starts with a main idea and chapter project. What is the title of the chapter
project for Chapter 6?
8. How many lessons are there in Chapter 6?
9. Every Chapter also has a Page Keeley Probe to stimulate thinking. What is the title and
page number where you can find the Probe in Chapter 7?
10. Use the glossary to find the definition for the term matter.
11. In how many languages is the glossary written in?
12. What page in the index can you find the description of matter?
13. What pages in the index can you find the explanation for scientific inquiry?
14. Name two skills you can find in the student handbook.
15. In which handbook can you find the Periodic Table of Elements?
16. Where in the Nature of Science Handbook can you distinguish scientific theory from
scientific law?
17. How do you access Learn Smart?
18. Explore LearnSmart. How can LearnSmart be used?
1. Student portal
3.
5.
7. Matter and Aloms
1346
9.
Scavenger Hunt Responses
2.
4.
6.
8. there are too lossoms
10.
11.
13.
15.
17.
12.
14.
16.
18.
Answer:
there are too lesson in chapter 6
A scientist adds different amounts of salt to 5 bottles of water. She then
measures how long it takes for the water to boil. What is the responding
variable in this experiment?
O A. The time it takes for the water to boil
O B. The amount of salt added to the water
C. The kind of bottles used
D. The brand of salt used
Answer:
A. The time it takes for the water to boil
It is because salt was added into the water. So the responding variable is the time taken to boil the water.
hope this help u. good luck
Would talking to plants positively or negative affect how they grow?
Answer:
u go to vanguard? in 6th grade
Answer:
is it correct ? sorry of it is incorrec
what is practical machine?
Explanation:
A practical machine is a simple machine that losses energy and have parts that have weights, friction and it causes some loss of work done.
Which two types of energy does a book have as it falls to the floor?
A. Kinetic energy
B. Nuclear energy
C. Light energy
D. Magnetic energy
E. Potential energy
Answer:
A and E
Explanation:
because of gravitational pull
Answer:
Its A and E :))
Explanation:
What is the name of the distance that is 103 larger than a meter
Answer:
kilometer
Explanation:
kilometer is larger than the meter
What happens to acceleration when mass is increased
Answer: acceleration will slow down.
Explanation: Since mass is inversely proportional to acceleration, if you increase the mass at a given force the rate of acceleration slows.
1. What type of waves does light travel in? 1.Transverse waves 2.Longitudinal waves
plz help someone
Answer:
Transverse waves
Explanation:
Light moves in waves. Light waves are different from sound waves in that light travels in transverse waves (as opposed to longitudinal, which is how sound waves travel). A light wave that travels in a direction is called a light ray.
The light waves travel as Transverse waves. Therefore, option (1) is correct.
What are Transverse waves?Transverse waves can be defined as waves that usually oscillate along paths that are perpendicular to the direction in which the wave is traveling. Examples of transverse waves involve the vibration of the guitar, electromagnetic waves, water surface ripples, primary waves of the earthquake, and seismic S waves.
Particles of matter in a transverse wave, oscillate up and down about their mean location rather than follow the path of the transmission of the wave.
A transverse wave can be described as every particle of the medium traveling around its mean position in an opposite direction of the propagating direction of the wave.
Transverse waves can be produced in solids and on the surface of liquids. Transverse waves are not possible to create in liquids or gases. Therefore, electromagnetic waves or light waves travel as Transverse waves.
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Plz answer this question
The answer will be pressure.
Pressure is force per unit area.
In what kind of diagram are you most likely to find transformer symbols?
A. Ladder diagram
B. Block diagram
C. Wiring diagram
D. Power-distribution circuit diagram
Answer:
D
Explanation:
Answer:
(D) Power-distribution circuit diagram
Explanation:
Transformer symbols are found primarily in power-distribution circuit diagrams
hope this helps:) God bless you!
Engineers design a system for heating the air in a house. They want the
heater to bring the temperature to a comfortable level and then maintain it.
Which option describes how the engineers should design the system?
O A. Include a control in the system that minimizes the difference
between the amounts of input and output.
B. Build in a control that uses negative feedback to minimize the
amount of change in the system.
C. Build a control into the system that causes input to always be
slightly less than output.
D. Include a control in the system that provides positive feedback
between the input and the output.
SUBMIT
PLSSS HELP WILL MARK BRAINLIEST
How are hypertension, heart disease, and stroke related?
A.
They are all the result of high levels of glucose in the bloodstream.
B.
They are all more closely linked to genetics than lifestyle.
C.
The risk of developing each condition can be reduced through diet and exercise.
D.
Reducing the risk of one of the diseases has no noticeable impact on the risk of the others.
What is the manipulated variable?
Answer:
ore specifically, in an experiment, a variable can cause something to change, be the result of something that changed, or be controlled so it has no effect on anything. Variables that cause something to change are called independent variables or manipulated variables.
Explanation:
Which of the following is an example of a vector quantity
A) a student walks 2.0km north
B) an object has a mass of 10.5 kg
C) A 1.0 kg object moves at 18 m/s
D) a ball has an instantaneous speed of 15 m/s
Answer:
A
Explanation:
A vector is a physical quantity that has magnitude and direction, so with A having a magnitude of 2.0km and a direction pointing north⬆️
Hope its helps
The cross country team goes on a 10 mile run after school. They end the run outside of the locker room where they started fund the distance and displacement of runner
Distance = 10 miles
Displacement = zero
The coach must be fired and disciplined.
A bicycle starts at 50 m from an intersection. ten seconds later the bicycle is 85 m from the same intersection what is the slope of the bicycles position versus time graph 5 s after it starts assume constant velocity motion
Answer:
use the formula of slope=(x₂-x₁)/(y₂-y₁)
Explanation:
The slope of the bicycle's position versus time graph 5 s after it starts to assume constant velocity motion would be 7 meters/second.
What is Velocity?The total displacement covered by any object per unit of time is known as velocity. It depends on the magnitude as well as the direction of the moving object.
velocity slope =change in the position of the object /change in time
As given in the problem a bicycle starts at 50 m from an intersection. ten seconds later the bicycle is 85 m from the same intersection,
change in the position of the bicycle = 85-50
= 35 meters
change in the time = 10 -5 seconds
= 5 seconds
slope = 35 meters/5 seconds
= 7 meters/second
Thus, the slope of the bicycle's position versus the time graph would be 7 meters/second.
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[tex]m1 = \frac{- v2m2 - m2v1}{v2 - v1} [/tex]
In physics, what is the positive and negative sign used for when applied to velocity and acceleration?
Answer:
the positive and negative signs are used to show different directions of acceleration and velocity
Explanation:
for example, if a car was moving forward, you would usually express it with a positive sign. If the car started moving backwards, you would show that backwards motion with a negative sign.
What is a description for this lionfish?
the lionfish, a longstanding showstopper in home aquariums, is a flourishing invasive species in U.S. Southeast and Caribbean coastal waters. This invasive species has the potential to harm reef ecosystems because it is a top predator that competes for food and space with overfished native stocks such as snapper and grouper. Scientists fear that lionfish will also kill off helpful species such as algae-eating parrotfish, allowing seaweed to overtake the reefs. In the U.S., the lionfish population is continuing to grow and increase its range. This is largely because lionfish have no known predators and reproduce all year long; a mature female releases roughly two million eggs a year.
Which velocity graph shows the car moving toward the right (away from the origin) at a steady (constant) velocity? 
Explanation:
[tex]\text{Velocity is defined as the average displacement per unit time.}[/tex]
[tex]\text{Since the car is moving at a steady velocity, the velocity does not change over time, it shows a horizontal line on the }v-t\text{ graph}[/tex]
[tex]\text{Therefore, only option 2,5,8 matches this requirement.}[/tex]
[tex]\text{Since the car is moving to the right, which is defined as the positive direction in this question, the velocity (}v\text{) is also positive.}[/tex]
[tex]\text{Therefore, only option 5 is correct.}[/tex]
The graph marked with number [5] is the correct graph.
We have a Car.
We have to select the graph which shows that the car is moving toward the right (away from the origin) at a steady (constant) velocity.
What is the acceleration of body moving with constant velocity ?The acceleration of the body at constant velocity is 0.
According to the question -
For constant velocity, the acceleration of the car will be zero. Now, if we plot the velocity - time graph for this motion considering that the car is moving away from the origin, then the graph marked with number [5] will be the correct choice since the velocity is constant (say v) throughout the time and the motion is along right of origin.
Hence, the graph marked with number [5] is the correct graph.
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