2. Only power tools with a 3-wire cord with
a ground are permitted by OSHA.
O
(A) True
(B) False
Answers
Related Questions
Which of these statements best represents the law of conservation of energy?
A: Potential energy can be completely converted to kinetic energy.
B: The total energy in a system decreases over time.
C: Energy is being created in the universe every day
D: The energy created by machines can be lost.
Answers
hen catching a football, your fingers should shape a
a W
b M
c Triangle
d Open circle
PLEASE ANSWER ASAP
Answers
Answer:
c.triangle
Explanation:
this is because I played football in be and the teacher told up it should be a triangle
WHAT IS THE DIRECT PATH DIRECTION FROM POINT A TO B
Answers
Answer:i want to say route but there is not enough information
Explanation:
what area of technology is the camera classified in? And WHY
a. Information and Communication
b. Bio-related and Agricultural
c. Medical d. Environmental
e. Production, which includes manufacturing and construction
f. Transportation
g. Energy and Power
h. Nanotechnology
Answers
Answer:
a. Information and Communication
Explanation:
The modern photographic camera evolved from the camera obscura. The functioning of the camera is very similar to the functioning of the human eye. The first permanent photograph was made in 1825 by Joseph Nicéphore Niépce.
How does the agricultural activity most likely affect the surface water of the area?
Answers
Answer:
Agriculture has been the cause of significant modification of landscapes throughout the world. Tillage of land changes the infiltration and runoff characteristics of the land surface, which affects recharge to ground water, delivery of water and sediment to surface-water bodies, and evapotranspiration.
Explanation:
Calculate the change in the kinetic energy (KE) of the bottle when the mass is increased. Use the formula
KE = one half.mv2, where m is the mass and v is the speed (velocity). Assume that the speed of the soda bottle falling from a height of
0.8 m will be 4 m/s, and use this speed for each calculation.
Record your calculations in Table A of your Student Guide.
When the mass of the bottle is 0.125 kg, the KE is
kg m2/s2.
When the mass of the bottle is 0.250 kg, the KE is
kg m2/s2.
When the mass of the bottle is 0.375 kg, the KE is
kg m2/s2.
When the mass of the bottle is 0.500 kg, the KE is
kg m2/s2.
Answers
1. The kinetic energy of the bottle is 1 Kg.m²/s²
2. The kinetic energy of the bottle is 2 Kg.m²/s²
3. The kinetic energy of the bottle is 3 Kg.m²/s²
4. The kinetic energy of the bottle is 40 Kg.m²/s²
How do I determine the kinetic energy?The kinetic energy can be obtain as illustrated below:
1. For mass 0.125 Kg
Mass (m) = 0.125 KgVelocity (v) = 4 m/sKinetic energy (KE) =?KE = ½mv²
KE = ½ × 0.125 × 4²
Kinetic energy = 1 Kg.m²/s²
2. For mass 0.250 Kg
Mass (m) = 0.250 KgVelocity (v) = 4 m/sKinetic energy (KE) =?KE = ½mv²
KE = ½ × 0.250 × 4²
Kinetic energy = 2 Kg.m²/s²
3. For mass 0.375 Kg
Mass (m) = 0.375 KgVelocity (v) = 4 m/sKinetic energy (KE) =?KE = ½mv²
KE = ½ × 0.375 × 4²
Kinetic energy = 3 Kg.m²/s²
4. For mass 0.500 Kg
Mass (m) = 0.500 KgVelocity (v) = 4 m/sKinetic energy (KE) =?KE = ½mv²
KE = ½ × 0.500 × 4²
Kinetic energy = 40 Kg.m²/s²
Learn more about kinetic energy:
https://brainly.com/question/25959744
#SPJ1
The change in kinetic energies are 1 \(kg m^{2}/s^{2}\), 2 \(kg m^{2}/s^{2}\), 3 \(kg m^{2}/s^{2}\), and 4 \(kg m^{2}/s^{2}\) respectively as the mass of the bottle is changed as 0.125kg, 0.250kg, 0.375kg, and 0.500kg.
Given the velocity v=4m/s.
KE=\(1/2 mv^{2}\)
Here KE represents the Kinetic energy of the bottle, m represents the mass of the bottle which is varying time to time, and v represents the velocity of the bottle which is constant over time.
For the first case:
Given mass m=0.125kg
∴KE=\(1/2mv^{2}\)
=1/2*(0.125)*(4)²
=1 \(kg m^{2}/s^{2}\)
Hence the change in kinetic energy of the bottle when it became 0.125kg is 1 kg m²/s².
For the second case:
Given mass m=0.250kg
∴KE=\(1/2mv^{2}\)
=1/2*(0.250)*(4)²
=2 \(kg m^{2}/s^{2}\)
Hence the change in kinetic energy of the bottle when it became 0.250kg is 2 kg m²/s².
For the third case:
Given mass m=0.375kg
∴KE=\(1/2mv^{2}\)
=1/2*(0.375)*(4)²
=3 \(kg m^{2}/s^{2}\)
Hence the change in kinetic energy of the bottle when it became 0.375kg is 3 kg m²/s².
For the final case:
Given mass m=0.500kg
∴KE=\(1/2mv^{2}\)
=1/2*(0.500)*(4)²
=4 \(kg m^{2}/s^{2}\)
Hence the change in kinetic energy of the bottle when it became 0.500kg is 4 kg m²/s².
Learn more about Kinetic energy:
https://brainly.com/question/8101588
Which of the following forces has not changed Earth's surface?
folding
erosion
weathering
gravity
Answers
Answer:Gravity is the force among the options listed that has not directly changed Earth's surface.
Explanation:
Gravity is a fundamental force that acts on all objects with mass, including the Earth itself, but it does not cause changes or modifications to the Earth's surface features. Instead, gravity influences the movement of materials and the shape of the Earth's surface by exerting a pulling force on objects. On the other hand, folding, erosion, and weathering are all processes that directly contribute to shaping
Earth's atmosphere is composed of
A.
iron, oxygen, and silicon.
B.
nitrogen, oxygen, and trace amounts of other gases.
C.
water, liquid oxygen, and trace amounts of other liquids.
D.
carbon dioxide, ozone, and magnesium.
Answers
Answer: B
Explanation:
:)
Explain what happens as the heart grows bigger.
Answers
Initially, the heart may grow bigger as a compensatory mechanism to try to keep up with increased demands for blood and oxygen. For example, if a person engages in regular exercise, their heart may enlarge to accommodate the increased demand for blood and oxygen to the muscles.
However, if the heart continues to grow over time, it can become less efficient at pumping blood and may develop structural abnormalities that increase the risk of heart failure, arrhythmias, and other complications.
In some cases, cardiac hypertrophy may be reversible if the underlying cause is treated, such as by managing high blood pressure or heart disease. However, if left untreated, hypertrophy can lead to irreversible damage to the heart muscle and may require more aggressive interventions, such as medication, surgery, or other medical procedures to manage the condition.
Mark all the examples of kinetic energy.
1. A phone vibrating when someone calls you.
2. A car driving at 50 mph.
3. A pencil sitting on your desk.
4.A bicycle chained to a bike rack.
5.A ball rolling down a hill
6.A rock sitting on top of a hill.
Answers
Answer:
A phone vibrating when someone calls you.
A car driving at 50 mph.
A ball rolling down a hill.
A golfer is teeing off on a 130.0 m long par 3 hole. The ball leaves with a velocity of 35.0 m/s at 35.0° to the horizontal. Assuming
that she hits the ball on a direct path to the hole, how far from the hole will the ball land (no bounces or rolls)?
Answers
Answer:
The ball will land 12.5m before that hole.
Explanation:
The motion of the golf ball can be considered as a projectile motion, where first its height is 0, then it keeps increasing to a maximum point, after which its height starts decreasing again and hits the ground (height becomes 0 again).
We need to calculate the Range (horizontal distance) of the ball which is given as:
\(R=\frac{v_i^2{\cdot}sin2\theta}{g}\)
Where
v(i) = initial velocity = 35 m/s
θ = Initial angle = 35°
g = gravitational acceleration = 9.8 m/s
Substitute in the given formula to find Range:
\(R=\frac{(35)^2\cdot{sin}(2)(35)}{9.8}\\R=\frac{(1225)(0.94)}{9.8}\\R = 117.5~m\)
Distance between the hole and position where ball lands = 130m - 117.5m = 12.5m
A meteor falls toward Earth's surface. Given that the acceleration due to
gravity is 9.8 m/s^2, what is the meteor's potential energy if it has a mass of 10
kg at an altitude of 400 m?
O A. 408 J
O B. 7,840,000 J
O C. 2J
O D. 39,200 J
Answers
Answer:
39,200J
Explanation:
just took the test
The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J
What is potential energy ?Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.
mass(m) = 10kg
g (acceleration due to gravity) = 9.8m/s^2
altitude(height (h)) = 400m
Meteor's Potential energy = m * g * h
= 10 * 9.8 * 400 = 39200 J
correct option will be a) 39200 J
learn more about Potential Energy :
https://brainly.com/question/14404024?referrer=searchResults
#SPJ3
What is the number of daylight hours of daylight difference in the summer for two regions located at different latitudes in the northern hemisphere?
Answers
How are
global warming and the
carbon cycle related?
HURRY ITS DUE IN A COUPLE MINUTES!!
Answers
Answer:
The carbon cycle plays a key role in regulating Earth's global temperature and climate by controlling the amount of carbon dioxide in the atmosphere. The greenhouse effect itself is a naturally occurring phenomenon that makes Earth warm enough for life to exist.
As the burning of fossil fuels and landscape alterations, such as deforestation and industrial agriculture, mobilize fossil carbon into the atmosphere, the earth's carbon cycle is pushed out of balance and climate changes. Human generated climate change is an enormous perturbation in the global carbon cycle.
Explanation:
Astronomers use special equipment to study the electromagnetic spectrum. What is the electromagnetic spectrum?
Answers
Answer:Astronomers use a number of telescopes sensitive to different parts of the electromagnetic spectrum to study objects in space. Even though all light is fundamentally the same thing, the way that astronomers observe light depends on the portion of the spectrum they wish to study.
Explanation:For example, different detectors are sensitive to different wavelengths of light. In addition, not all light can get through the Earth's atmosphere, so for some wavelengths we have to use telescopes aboard satellites. Even the way we collect the light can change depending on the wavelength. Here we briefly introduce observatories used for each band of the EM spectrum.
i) What happens to bulb X?
ii) What happens to bulb Y?
Refer Picture
Answers
Answer: (I) goes out
(ii)gets bright
Explanation:
A physics teacher performed a demonstration for a science class by pulling a crate across the floor and measuring the force with a spring scale. While she pulled, a student measured the acceleration of the crate with a handheld electronic device. The results of three trials are shown below. The teacher asked the class to calculate the acceleration of the crate based on the crate’s mass and the force she applied. What conclusion can be made about the difference between the CALCULATED acceleration and the ACTUAL acceleration that occurred in the trials?
Answers
Answer:
1. A 1,100 kg car comes uniformly to a stop. If the vehicle is accelerating at2 1.2 m/s, which force is closest to the net force acting on the vehicle?
-9,600 N
-1,300 N
-900 N
-94 N
Explanation: Awnser is 1,300
This is a science question
Answers
The air currents across the continents would determine the distribution of the air.
What are air currents?Air currents across the continents are primarily driven by temperature differences and the rotation of the Earth. The warm air near the equator rises and flows towards the poles, while the cooler air near the poles sinks and flows towards the equator.
This creates large-scale circulation patterns known as Hadley cells, Ferrell cells, and Polar cells. These cells are responsible for the trade winds, westerlies, and easterlies, respectively. Additionally, there are also local winds caused by differences in terrain, such as sea breezes and valley breezes.
Learn more about air currents:https://brainly.com/question/4134845
#SPJ1
NEED HELP FAST!
select drop box.
questions and options are in pictures.
Answers
Answer:
First is incrcersing mangnetic field second photosphere
Explanation:
sorry if the first one is wrong
How does gravity affect the motions of Earth and the Moon?
Answers
Answer:
The Sun's gravitational pull keeps our planet orbiting the Sun. The motion of the Moon is affected by the gravity of the Sun and Earth. Moon's gravity pulls on the Earth and makes the tides rise and fall.
Answer:
Gravity is making the Earth go around the Sun, it's also making the Moon go around the Earth, and somehow (I don't know how) the Moon's gravity messes with the water on Earth.
Explanation:
Describe a situation where you can be traveling at a low rate of speed but have an extremely high velocity. Please help within 10 minutes! Worth lots of points!
Answers
Any other Gypresgions come from shakespeare and are they used today?
Answers
Answer:Both books find Shakespeare deeply Catholic, but they reach very different conclusions about what that meant in his life and work during a time of official Protestantism, the Jesuit mission to England, and sharp divisions among Anglicans, Puritans, and Catholics.
Explanation:
(you can just say a color)
Answers
Answer:
I think its red
Explanation:
divide the distance 8000 by the hours 10 to get 800
Answer:
Red.
Explanation:
If you divide the distance by the time, you will discover that the airplane traveled 800 miles per hour.
Pls mark Brainliest with the crown.
Discuss one component of your school's recycling system that could be automated and predict the economic impact.
Answers
One component of my school's recycling system that could be automated is the sorting of recyclables. Currently, the school relies on students and staff to sort recyclables into the appropriate bins, which can be time-consuming and may result in contamination if materials are not sorted properly.
Automating the sorting process with a machine or conveyor belt system could improve the efficiency and accuracy of the recycling system. It could also potentially reduce labor costs associated with manual sorting.
The economic impact of automating the sorting process would depend on the initial cost of the equipment and any associated installation or maintenance costs. However, over time, the improved efficiency and accuracy of the system could result in cost savings for the school. Additionally, the increased efficiency of the system could potentially lead to increased recycling rates, which could result in cost savings for waste disposal and potentially generate revenue through the sale of recycled materials.
Answer:
Our school has color coded virtual trash cans. For example, a trash can for only paper will only accept paper items, if the item put inside is not paper, it will litter it out and all students have cleaning duties throughout the week so even if you or someone litters you’ll probably have to clean it up at some point anyways. I honestly think it’s very cool. (i wish this was true smh).
How did you feel after completing this Workout Challenge today? How is your "endurance" level doing since beginning of school year?
Answers
Answer:
I felt very relieved and powerful.
It has gone up a good bit to the point where the work out isnt hard
Explanation:
Please Help Me!!!!!!
Answers
Answer:
C: Electrical to chemical
the electricity turns into chemical energy to light the candle.
What is the answer to mgh =1/2 mv^2 + 1/5 mv^2 ???
Answers
Answer:
v = sqrt((10/7)gh)
Explanation:
The given equation is:
mgh = (1/2)mv^2 + (1/5)mv^2
To solve for v, we can start by simplifying the right side of the equation:
mgh = (7/10)mv^2
Dividing both sides by (7/10)mv^2, we get:
mgh / (7/10)mv^2 = 1
Multiplying both sides by (10/7)m/gh, we get:
v^2 = (10/7)gh
Taking the square root of both sides, we get:
v = sqrt((10/7)gh)
Therefore, the solution for v in terms of m, g, h is:
v = sqrt((10/7)gh)
how do you throw a pair of clipers
Answers
Answer:
YOU YEET IT!!!!
Explanation:
YEET
A student is trying to classify an unidentified, solid gray material as a metal or a nonmetal. Which question will best help the student classify the material? A. Is the material malleable or ductile? B. Does the material feel hard to the touch? C. Will the material float in water? D. Does the material feel rough or smooth?
Answers
Answer: A.) Is the material malleable or ductile.
Explanation: It the material is malleable, then it wouldn’t be a metal due to it changing shape.
The question that will best help the student classify the material is, Option A. Is the material malleable or ductile
A malleable material is one in which a thin sheet can be easily formed by hammering. Gold is the most malleable metal. In contrast, ductility is the ability of a solid material to deform under tensile stress.
Metallic Elements are Malleable and ductile and Conduct heat and electricity Nonmetallic elements are Brittle, hard or soft and Poor conductors of electricity.Learn more:
https://brainly.com/question/2569053
SCIENCE:
In 2-3 complete sentences, explain how a satellite goes into orbit remains in orbit in your own words.
Use the "RAP" method to answer this question:
Restate the question
Answer the question
Prove your answer citing textual evidence from the course.
Don't forget to proofread your answer.
Answers
Answer:
A satellite goes into orbit by getting a ride with a rocket or the Space Shuttle. Gravitational pull and the velocity of the satellite help it remain in orbit.
Explanation:
source: NASA (National Aeronautics and Space Administration)