Answers
Answer:
2
Explanation:
Related Questions
How is power defined?
A. the quantity of work accomplished
B. the direction of the work
C. the total distance an object is moved
D. the rate at which work is accomplished
Answers
Answer:
power is the rate at which work is accomplished
If you are leading a team to clean an oil spill in rough waters, which of the following methods would be most effective to clean the oil?
Install booms made from, or with, sorbent materials around the oil spill.
Install hard booms around the oil spill.
Coat the surface of the water with a sorbent material.
Wait until the water calms down and then install booms to contain the spill.
Answers
Answer:Install booms made from, or with, sorbent materials around the oil spill.
Explanation:Dispersants and booms and skimmers are the most frequently used methods to clean up ocean oil spills. All methods have advantages and disadvantages. The effectiveness depends on the situation – the amount and type of oil, the ocean currents and tides and the weather.
Explanation: Dispersants and booms and skimmers are the most frequently used methods to clean up ocean oil spills. All methods have advantages and disadvantages. The effectiveness depends on the situation - the amount and type of oil, the ocean currents and tides and the weather.
Please Help Im Struggling And Failing I Need All The Help I Can Get!!!!
Answer the following question: Who does more work? A person carrying 50lbs up one floor or a person carrying 50lbs up 2 floors? Why?
Answers
A balloon is filled with 6.5 L of helium gas at 25oC and 1.0 atm. What volume will the balloon have when the temperature is lowered to -25oC and the pressure is increased to 1.5 atm?
Answers
honestly i have no clue. but u can
What are Wedges used for? Science. Thank you! <3
Answers
Answer:
A wedge is basically a simple machine that consists of two inclined planes, back-to-back. For a wedge, the effort (force) is applied to the vertical (height) of the wedge.
Some examples are knives, axes, chisels, wedges etc.
Their usage is simply for splitting wood, lifting something, cutting etc.
Hope this helps!
Which of the following statements fully describes what an object may do when it experiences unbalanced forces? Select the two best answers.
A. It may change directions.
B. It will move at a constant speed.
C. It may slow down.
D. It may slow down or speed up.
E. It will stay stationary.
Answers
Answer:b
Explanation:
Please help me por favor :'(
Answers
Help me with this science
Answers
Answer:
1. Rain
2.frozen rain
3.clouds
4.when its at its freezing point which is 32 degrees Fahrenheit
5.a form of precipitation with little ice pellets
6.hail is formed when rain is carried up into cold part of the air
7.a thunderstorm
8.its basically just ice
9.It can cause bad dents in a car
10.he was a meteorologist and a photographer
Explanation:
2.snow is defined as ‘solid precipitation which occurs in a variety of minute ice crystals at temperatures well below 0°C but as larger snowflakes at temperatures near 0°C
3.Within a cloud, water droplets condense onto on another, causing the droplets to grow. when these water droplets get to heavy to stay suspended in the cloud, they fall to earth as rain...water vapor turns into clouds when it cools and condenses-that is, turns back into liquid water or ice.
4.freezing rain develops as falling snow encounters a layer of warm air deep enough for the snow to completely melt and become rain...when the supercooled drops strike the frozen ground(power lines, or tree branches), they instantly freeze, forming a thin film of ice, hence freezing rain.
5.a form of precipitation consisting of ice pellets, often mixed with rain or snow.
6. Hailstones are formed when raindrops are carried upward by thunderstorm updrafts into extremely cold areas of the atmosphere and freeze...the hail falls when the thunderstorms updraft can no longer support the weight of the hailstone,which can occur if the stone becomes large enough or the updraft weakens.
That’s all I can do but you should put it in your own words too:)
what does pure substance mean
Answers
A chemical substance is a particular class of homogeneous matter whose composition is fixed and chemically defined and is made up of the following entities: molecules, form units, and atoms.
Answer:
something that contains only one kind of matter
Explanation:
14.
Two jewelers were asked to measure the
mass of a gold nugget. The true mass of the
nugget is 0.856 grams (g). Each jeweler took
three measurements. The average of the
three measurements was reported as the
"official” measurement with the following
results:
Jeweler A: 0.863 g, 0.869 g, 0.859 g
Jeweler B: 0.875 g, 0.834 g, 0.858 g
Which jeweler's official measurement was
more accurate? Which jeweler's measure-
ments were more precise? In each case, what
was the error and percent error in the official
measurement?
Answers
Answer:
Jeweler B = more accurate
Jeweler A = more precise
Error:
0.008, 0
% error :
0.934% ; 0
Explanation:
Given that:
True mass of nugget = 0.856
Jeweler A: 0.863 g, 0.869 g, 0.859 g
Jeweler B: 0.875 g, 0.834 g, 0.858 g
Official measurement (A) = 0.863 + 0.869 + 0.859 = 2.591 / 3 = 0.864
Official measurement (B) = 0.875 + 0.834 + 0.858 = 2.567 / 3 = 0.8556
Accuracy = closeness of a measurement to the true value
Accuracy = true value - official measurement
Jeweler A's accuracy :
0.856 - 0.864 = - 0.008
Jeweler B's accuracy :
0.856 - 0.856 = 0.00
Therefore, Jeweler B's official measurement is more accurate as it is more close to the true value of the gold nugget.
However, Jeweler A's official measurement is more precise as each Jeweler A's measurement are closer to one another than Jeweler B's measurement which are more spread out.
Error:
Jeweler A's error :
0.864 - 0.856 = 0.008
% error =( error / true value) × 100
% error = (0.008/0.856) × 100% = 0.934%
Jeweler B's error :
0.856 - 0.856 = 0 ( since the official measurement as been rounded to match the decimal representation of the true value)
% error = 0%
You must use 1 metal and 2 non-metals for each combination.
Note: There are only 14 possible combinations for this practice activity.
If I use water, , and , then I can make ______ new elements in 5 minutes.
Answers
Mostly Sodium (Na), Potassium (K), and Calcium (Ca) react with water but alkali metals like lithium through caesium, and alkaline earth metals, magnesium through barium also react..
Calcium (Ca) react with water but alkali metals
like lithium through caesium, and alkaline earth
metals, magnesium through barium also react.
How does Earth’s rotation affect the global pattern of prevailing winds? Explain your reasoning using evidence
Answers
Answer:the air deflects toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere, resulting in curved paths.
Explanation:
The local newspaper has published the passage below.
Last week, scientists released incredible images of aurora australis, known as the northern lights, as seen from the Hubble telescope. The Hubble telescope was placed in orbit in 1990 by the space shuttle and has since delivered the sharpest images we have of our planet, our galaxy, and the universe. The images delivered last week show the beautiful display of lights in the southern hemisphere. These lights are the result of the solar activity known as solar wind. Traces of solar wind reach well beyond Earth and have been detected as far as Saturn.
Which statement in the news passage above is inaccurate?
The aurora australis cannot be seen from space.
The Hubble telescope does not orbit our planet.
The aurora australis is known as the northern lights.
Solar winds do not reach well beyond our planet.
Answers
Answer:
Solar winds do not reach well beyond our planet
Explanation:
I hope this helps :)
Solar winds do not reach well beyond our planet.because Traces of solar wind reach well beyond Earth and have been detected as far as Saturn. says that
10) Draw Bohr Diagrams For The Following. Make sure you show the correct number of protons and neutrons found in the nucleus.
Answers
Answer:
the no.of protons in k is 19 and no.of neutrons is 20.
THE NUMBER OF PROTONS IN AL IS 13 AND NO.OF NEUTRONS IS 14
THE NUMBER OF PROTONS IN BORON IS 5 AND NO.OF PROTONS IS 6
THE NUMBER OF PROTONS IN LI IS 3 AND NO.OF NEUTRONS IS 4
Imagine holding a tennis ball in front of a heat lamp for five minutes. What do you predict will happen to the temperature along the “equator” of the ball compared with the top and bottom?
Answers
Answer: It Would Be The Warmest As The Light is Falling Directly Upon It. The Top And Bottom Would Be Much Cooler Than The 'Equator'.
Explanation:
15 points and brainiest (if there's 2 answers)
Is the coloring of the peppered moths an example of competition, differential reproductive success, or inherited variation?
Please explain why
thank you
Answers
Explanation:
Because the coloring of the moths were a genetic mutation that helped strengthen the endurance and versatility of the moths by blending in with better environments
A basketball is made of matter. fire itself is not matter, however the wood that burns is matter. a basketball is very diffrent from a fire. what are some diffrences that might make a basketball matter but not a fire
Answers
Answer: A basketball is a solid and fire is a gas
Explanation:
To prove that a basketball is a solid you can try to move your hand right through it, you cant so its a solid
To prove fire is a gas you can try to move your hand right through it, you can move your hand right through it so its a liquid or gas in this case it is a gas
Through his investigation, Nathanial identified when equal forces are applied to an object, the motion of the object does not change. He started a data table to record the evidence from his investigation. Which further evidence can Nathanial use to support his findings?
67 N in row one and 110 N in row two
120 N in row one and 67 N in row two
115 N in row one and 65 N in row two
100 N in row one and 65 N in row two
Answers
Answer:
A is the answer
Explanation:
I just need help all I need is the answer please some one
Answers
Answer: The correct fill-in-the-blank answers are:
1. through binary fission (already filled in)
2. be resistant to penicillin
3. through asexual reproduction.
4. cell replicates before
5. a simpler process
Explanation:
The correct fill-in-the-blank answers are:
1. Bacteria reproduce through binary fission (already filled in)
2. A parent bacterial cell is able to survive in the presence of antibiotic penicillin. Subsequent generations from this parent will be resistant to penicillin
3. Something that potatoes and bacteria have in common is that they both reproduce through asexual reproduction.
4. In asexual reproduction DNA from the parent cell replicates before it produces daughter cells.
5. Asexual reproduction is a simpler process than sexual reproduction.
Know more about Bacteria: https://brainly.com/question/6941760
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
which chemical process is illustrated below?
Answers
Answer:
I believe it is D, Dehydration synthesis of amino acids to form a dipeptide
WILL MARK THE BRAINLEST
Answers
Answer:
a. Hh, hh
b. hh
c. 50%
d. 50%
List the five physical phase changes of matter and give one example for each.
Answers
Answer:Melting.
Freezing.
Evaporation.
Condensation.
Sublimation.
Explanation:
Answer: Examples for the five transformations previously given.
For the first four, we encounter common examples in everyday life, all to do with water:
Freezing - liquid to solid, e.g. water to ice, e.g. making ice cubes.
Melting - solid to liquid, e.g. ice to liquid water, melting ice cubes or snow flakes.
Condensation - gas to liquid, e.g. water vapor (gas) to liquid - water vapor in air (humidity) condenses to form liquid droplets on the outside of a cold beverage glass on a hot humid day; or cloud formation in the atmosphere.
Evaporation - liquid to gas, e.g. liquid water on clothes evaporates as clothes dry on clothesline or in dryer
While water can sublime under certain conditions of temperature and pressure, it is less evident in everyday life. Carbon dioxide however is a more common example.
Sublimation - solid to gas, e.g. "dry ice" disappearing. The visible smoke associated with dry ice is most likely just condensing water vapor in the air as the solid carbon dioxide cools the air.
Explanation:
Simple and complex molecules are similar in that they both involve ____ atoms A water B simple C bonded D complex
Answers
Answer:
The answer is C.
Explanation:
Please give brainliest
Answer:
D
Explanation:
complex, in chemistry, a substance, either an ion or an electrically neutral molecule, formed by the union of simpler substances (as compounds or ions) and held together by forces that are chemical (i.e., dependent on specific properties of particular atomic structures) rather than physical.
I NEED HELP ASAP!!!
The variable that is changed in an experiment to observe its effect is called?
Answers
1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL
Answers
To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.
Which statement explains the difference in chloroplasts between the two types of plant cells?
A.
The leaf cells have larger chloroplasts because leaf cells need more support and a stronger structure.
B.
The root cells have smaller chloroplasts because root cells do not need to store food and water.
C.
Unlike the leaf cells, the root cells have no chloroplasts because root cells do not need to produce or use energy.
D.
Unlike the root cells, the leaf cells have many chloroplasts because leaf cells produce sugars for the plant.
Answers
Answer:
A
Explanation:
I think it a because it seems more like the right answer
Use the drop-down menus to complete the sentences.
The ___
supports and protects a plant cell. It gives the cell its rigid structure.
Turgor pressure helps the plant stand upright. It is caused by the movement of ___
into a plant cell.
Plants are composed of cells that contain nuclei, which make them ___
.
Plants make their own food using sunlight, which makes them ____
.
Answers
Answer: I don't understand the question.
Answer: The completed sentences of the Question are as follows:
The Cell-wall supports and protects a plant cell. It gives the cell its rigid structure.
Turgor pressure helps the plant stand upright. It is caused by the movement of water into a plant cell.
Plants are composed of cells that contain nuclei, which make them eukaryotic cells.
Plants make their own food using sunlight, which makes them autotrophs.
Explanation:
The cell wall is a rigid covering that protects the cell. It also provides structural support and gives shape to the cell.
Turgor pressure in plants is the force exerted by stored water on a cell wall. Turgor pressure is critical to the plant’s essential processes as it stiffens and rigidifies the plant cell and helps it stay upright.
Plant and animal cells are eukaryotic which means that they have nuclei. Eukaryotic cells are found in both plants and animals.
Plants are autotrophs, which means they produce their own food. The process by which they produce their own food by transforming water, sunlight, and carbon dioxide into oxygen and simple sugars is called Photosynthesis.
You can find more about Plant cells here:
https://brainly.com/question/21323201
Please help, I don't get what does this means
3. Name the compound sodium makes with the following elements.
(a) Calcium carbonate:
Answers
Answer: hydrogen-carbonate.
Explanation:Because when carbon dioxide is passed in excess it leads to a formation of hydrogen-carbonate.
I hope everyone finds this helpful
how are thing measured using the metric system
Answers
Answer: The metric system is a system of measurement that uses the meter, liter, and gram as base units of length (distance), capacity (volume), and weight (mass) respectively. To measure smaller or larger quantities, we use units derived from the metric units.