Answer:C
Explanation: No friction with the floor if it is not touching the floor.
Summarize the procedures you perform before, during, and after a lab investigation.
Answer:
Before Lab
At all times while in the lab area you must follow all classroom rules and behave in an appropriate manner or
you will not be allowed to participate in laboratory activities. You should come to class prepared with any
pre-lab assignments or instructions that have been given.
⋅ While working in the lab area safety goggles should be worn at all times.
⋅ All long hair should be tied back; open-toed shoes, baggy clothing, and loose jewelry should also be
avoided.
⋅ Know the location and proper use of all safety equipment (including fire extinguisher, fire blanket, firstaid kit, eye wash station, and sink) as well as classroom exits.
⋅ Food and drink are not allowed in the lab area.
⋅ Never work alone in the laboratory.
⋅ If there is an accident or a problem, immediately stop what you are doing and report it to your instructor.
During Lab
⋅ Before beginning any procedures, read through all lab instructions that your instructor has given.
⋅ If you do not understand the instructions or the procedures, ask for clarification.
⋅ Perform only procedures or experiments that have been assigned by your instructor.
⋅ Clean up all spills, including water, and messes immediately before proceeding.
⋅ Wear an apron whenever using acids, bases, or stains.
⋅ All solutions, chemicals, and specimens should be treated with care.
⋅ Never taste or smell anything in the lab. If instructed to smell something, use your hand to gently waft the vapors to
your nose.
Fire / Electrical Safety
⋅ Know the location and proper use of the fire blanket and fire extinguisher.
⋅ Never directly touch something that may be hot, use a hot mitt or tongs instead.
⋅ When heating, always point test tubes away from yourself or others.
⋅ Never use electrical equipment near water or moisture.
⋅ Extinguish all uncontrolled flames immediately and notify your instructor.
⋅ If a burn is received, immediately place the burned area under cold water and notify instructor.
⋅ Always make sure that all flames and electrical equipment are turned off when not in use.
Glassware / Sharp Object Safety
⋅ Never use glassware that is cracked or chipped (even if it does not leak).
⋅ When using a blade, never use a dull blade and always cut downward and away from your body.
⋅ If a cut is received, immediately wash the cut, apply pressure to stop the bleeding, and notify your
instructor.
⋅ Always dispose of broken glass in a glass disposal box and notify your instructor.
Chemical Safety
⋅ Know the location and proper use of the eye-wash, sinks, and chemical showers.
⋅ Know the location of sand or vermiculite in case of acid spills.
⋅ When diluting, always pour acids into water. Do not pour water into acid.
⋅ If a chemical is spilled on your person, immediately flush the area with water and notify the instructor.
⋅ Dispose of chemicals only as instructed in marked containers.
Biological Safety
⋅ Wear protective gloves when handling biological specimens.
⋅ If you come into direct contact with biological specimens or fluids, immediately notify your instructor.
⋅ Dispose of all biological cultures or materials containing live cultures in the proper biohazard bags.
After Lab
Before leaving the lab area, return all equipment to its proper place and make sure that your lab area is
cleaned up. After completing the lab wash your hands thoroughly with soap and water.
(Hope this helped)
Rahim is watching his favorite football team on television. In order to work, the television must be plugged into an electrical outlet. When the television gets turned on, what is the main energy transformation demonstrated by the television?? heres the answer choices A. heat energy into electrical energy
B. electrical energy into heat energy
C. electrical energy into light energy
D. light energy into electrical energy
If a girl is standing still and holding a box, is she doing any work? (No)
The _____ on the box is not in the same _____ as the movement
Answer:
gravity
Explanation:
Watch the VIDEO and then explain the steps to build a simple electromagnet.
A student pushes a chair into a desk. If the student's push is the action force, then what is the reaction force in this example of Newton's third law?
A the force from the chair on the student
B the force that the chair exerts on the desk after it is pushed in
C the force of friction acting on the chair
D the force of gravity acting on the chair
Answer: C
Explanation:
how high will a ball bounce if its dropped from 50cm
Options: Power, energy, time
_____ is the rate of _____ it takes to use a certain amount of _____
Answer:
power is the rate of time it takes to use a certain amount of energy
Explanation:
i think,, dont take my word for it tho.
sorry if its wrong :'(
Help again i need it quick
Answer:
it seems that the answer should be 7.5 mph as the average
Explanation:
sorry i did (s x t) when it was (s/t)
Answer:
15mph
Explanation:
Hope this helps
The narrator of a story
is always the same person as the author.
is always part of the narrative.
determines the story's characters and events.
provides information about characters and events
Which actions are essential to active participation? Check all that apply.
taking control
coming prepared
being focused
keeping quiet
assisting others
asking questions
Answer:
2, 3, 4, 6.
Explanation:
The actions which are essential for active participation are coming prepared, being focused, keeping quiet, and asking questions so, options B, C, D, and F are correct.
What is active participation?In order to make wise decisions and actively and positively participate in the democratic cultures, they live in, citizens must possess the competencies that active participation calls for. These competencies include a level of awareness of oneself in relation to the environments into which they are thrust.
The fundamental tenets of active participation include promoting an individual's rights, choices, and independence. The cornerstone of person-centered care, which respects a person's dignity, values, and freedom to choose and make decisions in accordance with their unique needs and beliefs, is also these concepts.
To know more about active participation:
https://brainly.com/question/15207059
#SPJ2
1. What evidence of a PHYSICAL change would you find in a holiday feast or over Thanksgiving break? For example, describe a change in mass, volume, state or shape where the original substance has not been chemically changed. Be specific and give details.
Why would the crash affect the motion of the satellite? Write at least 1 paragraph and good vocab.
Answer:
The speed and direction of the two satellites would differ from each other cause the asteroids differ in size. The bigger one would have moved the satellite farther of track and go a bit faster than the other asteroid. The other one wont move it as far and the speed would not change by much.
i hope this helped
HELP ME ASAP!!! THIS IS DUE IN LIKE 10 MINUTES!!!
Which image shows an inclined plane?
A. A bowling alley with a set of pins at one end.
B. A ping pong table.
C. A bus with a ramp leading down to the ground from its front door.
Answer:
C
Explanation:
It would have to be a bus with a ramp.
Think about it, an inclined slope is kinda like a right triangle, and its a ramp, ramps go down :)
Answer:
Its C
Explanation:
please help fill in the blank Earth’s axis passes through the (blank) and south poles.
Answer:
North
Explanation:
Have a nice day :)
How much force must be applied to a 2,500 kg mass to accelerate it to 3.5 m/s2 ?
A: 204 N Strike Reset
B: 714 N Strike Reset
C: 8,750 N Strike Reset
D: 30,625 N Strike Reset
Free Test Answers!!
Test: Interaction of Forces Unit Test Answers:
D. The balls both have the same electrical charge.
C. The magnetic force will be strongest on box #1.
B. Load or an electrical device
A. motion
C. Insulators obstruct the flow of electrons, whereas conductors allow electron to flow freely.
B. A parallel circuit has more than one path for the circuit to take.
D. Box B because it has more mass.
A. It will be an unstable system because it will not be able to recover from the disturbance.
B. 7.0 ohms
B. on.
C. Mars has less mass than Earth.
B. solenoid
B. static electricity.
B. false
The magnetic forces makes a maglev train to float above the tracks because of the repulsion property and similar magnetic poles.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Box A isn't stable and will fall over since it's being pulled down and if you push it if nothing is around to secure it's movements. Box B is stable and will only side if nothing is around to secure it's movements. The mass of the boxes could also affect what would happen if you pushed the box, if Box B had a heavy mass it most likely wouldn't move. If Box A had more equilibrium and a heavy mass, It would have a better chance of not falling over.
<3 Enjoy,
Dea
Answer:
Thank you very much.
Explanation:
Which crash caused a greater change in motion for the satellite explains why and how? Write at least 1 paragraph and use vocab.
Answer:
Explanation:
Crash one
im very sorry if it is wrong. I am DUMB!!
Good luck, stay safe, have a great rest of your day, God bless, and happy holidays! :)
A rock is thrown straight up from the surface of the Earth. Which one of the following statements describes the energy
transformation of the rock as it rises? Neglect air resistance.
a) The total energy of the rock increases.
b) The kinetic energy increases and the potential energy decreases.
c) Both the kinetic energy and the potential energy of the rock remain the same.
d) The kinetic energy decreases and the potential energy increases.
e) Both the potential energy and the total energy of the rock increase.
Answer: d
Explanation:
Uuhhh I’m not good at explanations...
The kinetic energy decreases while the potential energy increases.
Option d is the answer because as soon as this ball gets thrown from the surface of the earth kinetic energy would be at its greatest.
we have
[tex]k=\frac{1}{2} mv^{2}[/tex]
The velocity is going to be minimized. As the ball is going up its velocity would be falling or decreasing due to gravity. [tex]k=\frac{1}{2} mv^{2}[/tex] would then have a smaller value. So kinetic energy is reducing/decreasing.
We have potential energy as u = m*g*h = 0. This is because the height is 0 as the ball is released. But as the ball goes up, the height would start to increase so the potential energy increases.
In conclusion as the ball is thrown straight from the earth, kinetic energy decreases and potential energy increases.
Read more at https://brainly.com/question/2858799
NASA plans to launch a new satellite to orbit the Earth. As the satellite is launched the thrust of the hot exhaust gas is pushed through the rocket nozzle and is accelerated toward the rear of the rocket. In turn, the rocket engine is then lifted off of the ground. According to Newton's 3rd law of motion, which statement below is true of the forces involved?
A The downward force exerted by the exhaust on the engine is greater.
B The magnitude of both forces is equal to zero acting in opposite directions.
C Both forces are equal in magnitude, but opposite in direction.
D The upward force exerted by the engine on the exhaust is greater.
Answer:
A
Explanation:
The kinetic energy of the pom-pom came from potential energy in the system.
How did potential energy gets stored in the spring/pom-pom system?
Answer:
I believe that the answer is that in physics, potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors. Common types of potential energy include the gravitational potential energy of an object that depends on its mass and its distance from the center of mass of another object, the elastic potential energy of an extended spring, and the electric potential energy of an electric charge in an electric field.
The elastic potential energy of a spring is the energy stored in the spring due to its elastic nature.
The potential energy stored in a spring is known as elastic potential energy. The elastic potential energy of a spring is the energy stored in the spring due to its elastic nature.
For example, when a spring is compressed it acquires potential energy which will be converted to kinetic energy of the object impacted by the spring.
The elastic potential energy of spring is given as;
[tex]U_x = \frac{1}{2}kx^2[/tex]
where;
k is the spring constantx is the extension of the spring.Thus, we can conclude that, the elastic potential energy of a spring is the energy stored in the spring due to its elastic nature.
Learn more here:https://brainly.com/question/17717335
Roxanne is an expert at blowing bubbles with bubble gum. She discovered that her bubbles were bigger if she stood facing the Sun when she blew them. At lunch she told her three best friends about her discovery and after school they all tried it. No one else was able to blow bigger bubbles when they faced toward the Sun. Which of the following would be best for Roxanne to do next? A. She should prove she is right by blowing bubbles while her friends are watching.
B. She should give them each bigger pieces of bubble gum and try it one more time.
C. She should think about what else she is doing that might have made the bubbles bigger.
D. She should ask her friends to try it again and concentrate harder when they face the Sun.
Answer:
My guess is C
Explanation:
I need help plz and thank you this is due
Physical Education
Soccer
Assignment Directions:
Research three of the world’s most famous soccer players. Compose a brief visual presentation using PowerPoint to present each player and their accomplishments.
Your presentation should reflect your understanding of the sport as well as the athletic ability needed to be successful.
Assignment Guidelines:
Your presentation should include elements of:
• Childhood
• Work ethic
• Hardships
• Examples from games
• Terminology consistent with the sport
Submission Requirements:
Submit your presentation
When submitting written assignments please remember to:
• Submit the assignment question(s) and your responses.
• Proof-read for spelling, grammar, and punctuation.
• Remember complete sentence structure.
• Paragraphs need to have a minimum of six sentences.
Answer:
hello ...i have a question do u want the presentation completed by the person who is going to answer this question
What part (or parts) of this system have kinetic energy?
Answer:
All moving objects have kinetic energy
Explanation:
( that should help....right?)
Answer:
Explanation:
when you crank you make kinetic energy and then the kinetic energy makes potential energy.
Does this help?
Which activity would help maintain homeostasis during exercise?
increasing the amount of water excreted from the kidneys
decreasing the heart rate
developing goose bumps on the skin
speeding up the rate of breathing
Answer:
Speeding up the rate if breathing
Explanation:
The more and quicker you breathe, the more oxygen your cells get