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
Which of the following is the correct formula for calculating potential energy?
PE = mass x gravity
PE = mass/gravity
PE = mass x gravity x height
PE = mass + gravity + height
Answer:
The third answer
Explanation:
pls helpp asapppppppppp
Answer:
D they are producers
Explanation:
Invasive species are often successful in their new ecosystems because they can reproduce
20 points Scince HHEELLPP
What are the different types of tropism?
Chemotropism –
Geotropism-
Hydrotropism-
Heliotropism-
Phototropism-
Thermotropism-
Thigmotropism-
Answer: phototropism, hydrotropism, and chemotropism.
Explanation: Forms of tropism include phototropism (response to light), geotropism (response to gravity), chemotropism (response to particular substances), hydrotropism (response to water), thigmotropism (response to mechanical stimulation), traumatotropism (response to wound lesion), and galvanotropism, or electrotropism (response
Colin is conducting an experiment about static electricity. To start his experiment, he has two balloons. He rubs one of the balloons on his head and then places both balloons close to the wall. What is the control in his experiment?
Both balloons in the experiment
The balloon he does not rub against his head
The balloon he rubs against his head
The wall he uses to test static electricity
Answer:
The wall he uses to test static electricity
Explanation:
Hope this helps :D
PLEASE HELP VERY URGENT
1.
a) All of the balloons should be moved to the center of the floor.
b) Each balloon should be inflated more so that they are all increasing in size.
c) Each balloon should be deflated so that there is more distance between the surface of each balloon.
d) All of the balloons should be moved away from each other so there is more distance between them.
2.
a) All matter and energy were contained inside the small point.
b) Matter and energy came from dark areas of the universe and were attracted to the small point.
c) Matter and energy fell into the small point the same way a black hole attracts matter and energy.
d) Matter was condensed into a single point until energy was attracted to the matter from dark areas of the universe.
Answer
d) All of the balloons should be moved away from each other so there is more distance between them.
Explanation:
Both the cell membrane and the cell wall act to protect the organelles within a cell. Which of the following best describes how the cell membrane is different from the cell wall?
When a customer in Japan was quoted a price of .39 cents a pound he thought he was being charged .39 a kilogram. He was shocked when he go the bill – since he ordered 100kg. How much was the bill?
Answer: $85.80
Explanation: 100kg is equalvilent to 220 lbs, then you multiply 220 by .39 and then you have your answer :)
Pleasee help me pwease
The number of dots near hydrogen and helium are the same as in the energy
level chart. Why?
Answer:
Because the electrons they have are valence electrons.
Explanation:
Hope this helps
Read the excerpt from "The Monkey's Paw.”
"It had a spell put on it by an old fakir," said the sergeant-major, "a very holy man. He wanted to show that fate ruled people's lives, and that those who interfered with it did so to their sorrow. He put a spell on it so that three separate men could each have three wishes from it."
His manner was so impressive that his hearers were conscious that their light laughter jarred somewhat.
"Well, why don't you have three, sir?" said Herbert White, cleverly.
The soldier regarded him in the way that middle age is wont to regard presumptuous youth. "I have," he said, quietly, and his blotchy face whitened.
"And did you really have the three wishes granted?" asked Mrs. White.
"I did," said the sergeant-major, and his glass tapped against his strong teeth.
"And has anybody else wished?" persisted the old lady.
"The first man had his three wishes. Yes," was the reply; "I don't know what the first two were, but the third was for death. That's how I got the paw."
Which event does the excerpt foreshadow?
A. the sergeant-major's return to India and the resulting tragedy
B. the sergeant-major obtaining the paw and the resulting tragedy
C. Mr. White's refusal of the paw and the resulting tragedy
D. Mr. White accepting the paw and the resulting tragedy
Answer:
D
Explanation:
Answer:
d. is right
Explanation:
Which is the best unit of measurement to investigate the weight of rabbits?
a: inches b: tons c: ounces d: feet
HELP DUE TODAY!
Answer:
It is ounces because it is asking for weight and you would not measure a rabbit by tons
Answer:
C. Ounces
Explanation:
C. Ounces because inches and feet measure height or length not weight, and tons is wayyyy to much. Tbh I think pounds would be the best unit but since it's not an option then ounces is the best choice. (srry if I confused you)
Hope this helps :D
Earth's layers. I really need this by tomorrow and I don't have the mental energy to do it..
science is hard sometimes help please!
need help with these science questions!!!
Answer:1.it changes its physical state 2.lemonade 3.A mixture of 3 or more substances
Explanation:
Lemonade is a mixture.A solution is mixture of two or more substances.if changes from a solid into a different form of state
Because of surface tension, a liquid _____.
resists flowing
forms a crystalline solid
takes the shape of its container
forms droplets
Because of surface tension, a liquid forms droplets. The surface tension makes the surface molecules experiences a strain from the bulk of the liquid.
What is surface tension ?Surface tension is the propensity for liquid surfaces that are at rest to condense into the smallest surface area. Razor blades and insects, which have a higher density than water, can float on the surface of the water without even becoming partially buried because to surface tension.
Force per unit length or energy per unit area are the dimensions of surface tension. The two are equivalent, although when discussing energy per unit of area, surface energy is frequently used because it is a more inclusive phrase that includes solids.
To minimize the surface area, liquids assume the shape of droplets. The uneven cohesive forces of the surface layer tend to pull water droplets into a spherical shape, even though they can be easily distorted. Hence, option d is correct.
Find more on surface tension:
https://brainly.com/question/28146435
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75 POINTS AND BRAINLY
Select the correct answer.
The formula for calculating power is work divided by time (power = work ÷ time). What are two ways of stating the same relationship?
A. work = power ÷ time
B. work = power × time
C. time = work ÷ power
D. time = work × power
E. power = work × time
Answer:
B=work=power/time
Explanation:
Answer:
54
Explanation:
Which describes the ability to do work or to cause change?
physical change
matter
temperature
energy
Answer: Energy
Explanation: The ability to do work or cause change is called energy. Energy comes from many sources, and is found in two main forms. One form, potential energy, is energy that has the potential, in an object at rest, to do work later. An example of this would be a car parked at the top of a hill with its brakes on.
Usa test prep- Look at the picture below to answer. If u answer correctly i will mark you as brainliest!
Answer:
A) protons, shape
Explanation:
Every chemical or physical change in matter includes a change in _____.
temperature
mass
energy
chemical formula
Answer:
matter
Explanation:
Want brainly?? Answer this question correctly and I got you.
Answer:
divergent
Explanation:
That is when two plate boundaries slide apart
Answer:
Divergent boundary. hope it helps
in the upper mantle (lithosphere) our journey guide states that "movement of molten material between the crust and mantle" causes islands, volcanos, and ocean trench. what is this movement? describe how it works
Answer:
Boundaries between the plates are of three types: divergent (i.e., moving ... Plates are thought to move along the lithosphere-asthenosphere boundary, ... plates include both crustal material and lithospheric mantle material makes it ... crust to the ocean floor where it creates a chain of volcanic islands known as an island arc.
Explanation:
Mike rides his bike 30 km in 150 minutes. What is his average speed in kilometers per hour?
PLEASE HELP RIGHT ANSWER WILL GET THE BRAINLY..
Answer:
erosion
Explanation:
it carries things from one place to another
Answer:
Erosion. It deals with rocks :p
(06.01 MC)
A student made the following observations about astronomical bodies.
Observation 1: The sun rises and sets.
Observation 2: The stars move daily across the sky.
Which observation(s) can be explained using the geocentric model?
Select one:
a. Only observation 1
b. Only observation 2
c. Both observation 1 and observation 2
d. Neither observation 1 nor observation 2
Answer: C. Both observation 1 and observation 2
Explanation: A geocentric model shows the stars and the sun and where they move to.
God bless. <3
A box sits on a table. A long arrow labeled F subscript P = 22 N points right. A short arrow labeled F subscript f = ? N points left. A man pushes on the box from the left. The net force acting on the box is 18 N. What is the force of friction?
–22 N
–4 N
4 N
22 N
Answer:
b -4 N
may the force be with you
Answer:
b-4 N
Explanation:
I think thats right
Which involves a chemical change?
filtering sand from water
distilling pure water from salt water
separating hydrogen and oxygen from water
evaporating sugar from sweetened water
can a magnet attract a pure substance?
Answer:
Magnets strongly attract materials which already themselves have magnetic domains. They do not significantly attract many metals like gold, aluminum, silver, and even some types of high-chromium stainless-steel, which lack such domains. In fact, pure gold is slightly repelled.
Explanation:
Earth's magnetic field is generated by the outer core. Which characteristics of this layer create that phenomenon? How do you think scientists pinpointed the cause of the magnetic field as the outer core?
Answer:
On Earth, flowing of liquid metal in the outer core of the planet generates electric currents. The rotation of Earth on its axis causes these electric currents to form a magnetic field which extends around the planet.
PLEASE ANSWER ASAP!!!
what from Democritus' atomic model was wrong?
Answer:
Atoms also aren't the solid, uncuttable particles Democritus thought. Instead, they consist of several kinds of smaller, simpler particles as well as a lot of empty space. In addition, atoms aren't really indestructible because they can be changed to other forms of matter or energy
Please help quick! 3 questions if you answer all I will give brainliest
1. Identify at least two tools scientists use to study stars and galaxies, then explain how the tools you chose assist scientists in their work.
2. Name at least three properties of stars revealed by spectral characteristics
3. In 3-5 sentences, explain how a star is formed.
Answer: 1.Spectroscopes breaks the light from a single material into its component colors the way a prism splits white light into a rainbow. It records this spectrum, which allows scientists to analyze the light and discover properties of the material interacting with it.
2.Optical Telescopes The now-indispensable optical telescope instrument was pioneered by Galileo Galilei in 1609, although others had created similar tools by then
2.A stellar spectrum can reveal many properties of stars, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.
3.Stars form from an accumulation of gas and dust, which collapses due to gravity and starts to form stars. The process of star formation takes around a million years from the time the initial gas cloud starts to collapse until the star is created and shines like the Sun.Once the pressure and the temperature inside get high enough for nuclear fusion to ignite, it creates a star.
Explanation:
