Answer:
precise
Explanation:
usatestprep
The degree of agreement between two or more measurements is what is referred to as a substance's precision. Your measurement is incredibly exact, but not necessarily correct if you weigh the same substance five times and obtain 3.2 kg each time.
What precision vary quite a bit from each other?The level of agreement between measurements of the same thing is known as precision. Accuracy is not necessary for precision. In other words, it is possible to be accurate without being exact, as well as to be highly precise but not particularly accurate.
As was mentioned before, you can be extremely exact but inaccurate. You can also be precise while being inaccurate. For instance, you have accuracy without precision if, on average, your measurements for a specific substance are close to the known value, but the measurements are far apart.
Therefore, The standard deviation, or the amount and frequency of measurement variation, is what determines precision. A high standard deviation indicates low precision, according to the metric.
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How can shoe and tire marks be preserved in mud?
es )
A)
casting
B)
dusting
fluorescence
D)
printing
A biker goes out for a ride and begins riding North at 18 km/h for 200 minutes, then the driver turns around and rides at 12 km/h South for another 50 minutes.
Answer:
Explanation:
18 km / h
= 300 m / min
12 km / h = 200 m / min
distance travelled in 200 minutes = 300 x 200 = 60000 m
distance travelled in 50 minute in return journey = 200 x 50 = 10000 m
total distance travelled = 70000 m
total time = 250 minute
speed = 70000 / 250
= 280 m / min
= 16.8 km / h
Total displacement = 60000 - 10000 = 50000 m
total time = 250 min
velocity = 50000 / 250
= 200 m / min
= 12 km / h
Calculate the change in time for each quarter of the track. Record the change in time in Table E of your Student Guide. The change in time for the first quarter is seconds. The change in time for the second quarter is seconds. The change in time for the third quarter is seconds. The change in time for the fourth quarter is seconds.
Answer:
Answer:first 1.39
second 0.78
third 0.64
fourth 0.54
Explanation:just did it
Explanation:
Answer:
this is it
Explanation:
1. In a biology experiment the number of yeast cells is determined after 24 hours of growth at
different temperatures.
a) Identify the independent and dependent variables in the experiment.
Answer:
In a biology experiment the number of yeast cells is determined after 24 hours of culture at different temperatures. a) Identify the independent and dependent variables in the experiment. b) Draw the graph of the
Explanation:
Match each physical property of matter to the appropriate definition
conductivity
density
buoyant force
solubility
boiling point
probably a little late on this but the dude got everything wrong heres a screenshot of the answers.
Solubility: the ability of a substance to dissolve in another.
Density: the amount of mass in a given volume.
Buoyant force: the upward force on an object in a fluid.
Conductivity: the ability of a substance to transfer heat or electricity.
Boiling point: the temperature at which a liquid becomes a gas.
Solubility can be defined as a measure of how readily a substance dissolves in a solvent to form a solution.
Hence, a substance is typically considered to be soluble if it is able it dissolve completely in a solvent.Density can be defined as mass all over the volume of an object.
Simply stated, density is mass per unit volume of an object.Buoyancy can be defined as an upward force created by the fluid (liquid) displaced by an object.
Conductivity can be defined as the ability of an object, substance or body to transfer heat or electricity to another.
Boiling point is the temperature at which a physical matter changes phase from liquid to gas.
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If you walk 30 meters forwards, and then turn around and walk 25 meters backwards, what is the distance that you walked? What displacement do you have after this walk?
Given :
Walk in forward direction is 30 m .
Walk in backward direction is 25 m .
To Find :
The distance and displacement .
Solution :
We know , distance is total distance covered and displacement is distance between final and initial position .
So , distance travelled is :
D = 30 + 25 m = 55 m .
Now , we first move 30 m in forward direction and then 25 m in backward direction .
So , displacement is :
D = 30 - 25 m = 5 m .
Therefore , distance and displacement covered is 55 m and 5 m respectively .
Hence , this is the required solution .
A fast Humvee drove from desert A to desert B. For the first 12
hours, it travelled at an average speed of 185 km/h. For the
next 13 hours, it travelled at an average speed of 160 km/h.
What was the average speed of the whole journey?
km/h
Answer: 172
Explanation: Because yeah
what do you mean by 100W is written on an electric bulb?
Answer:
100 watt
Watt is a unit of power, for the light bulb its produces or consumes 100 watts of power
Answer:
100w means the power consumed by the electric bulb
Urination is one of the key mechanisms for losing fluid from the human body.
Answer:
TRUE. so is breathing, sweating
hope this helped :)
The steeper the slope of a line, the _______ the object was moving
Answer:
"Faster" is most likely the answer, I'm not 100% sure though
a 12 lb bowling ball goes faster than a 15lb ball when thrown with the same force. Why is this Newton's 2nd law of motion? Please I need an explanation.
Answer:
This is Newton's 2nd law of motion because Newton's second law pays more attention to the mass of the object and amount of force is being put from the object.
You are driving down a two-lane road at 45 mph. The oncoming vehicle�s right wheels drop off the pavement. The most likely occurrence is...
Answer:
a)The vehicle will enter your lane
Explanation:
The complete question is
You are driving down a two-lane road at 45 mph. The oncoming vehicle's right wheels drop off the pavement. The most likely occurrence is...
a)The vehicle will enter your lane
b)The vehicle will continue on the shoulder of the road.
c)The vehicle will spin out and hit a tree.
d)The vehicle will return smoothly back onto the road.
The dropping off of the oncoming vehicle's right wheel off the pavement will force the driver to overturn to the left towards you, and this might lead to the vehicle entering your own lane.
Which state(s) of matter have no definite shape or volume? liquids and solids liquids and gasses gasses solids
Answer:
c gasses
Explanation:
Liquid and gases state(s) of matter have no definite shape or volume
What is the matter?Anything which has mass and occupies space is known as matter, mainly there are four states of matter solid liquid gases, and plasma.
These different states of matter have different characteristics according to which they vary their volume and shape.
The solid has a definite shape and definite volume because the atoms and molecules of the solid are very close to each other forming a great bond structure.
The liquid and gaseous state have their atoms and molecules apart from each other forming a loose bonding structure because this liquid does not have a fixed shape it takes the shape of the container, similarly, gases, their atoms are far apart from each other that's why they don't have fixed shape or the fixed volume.
States of matter those have no definite shape or volume are liquids and gases.
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5. Scientists studying bull sperm whales off the coast of South Africa have
calculated that these mammals can descend to depths of nearly 3,000 m during
their search for food. What is this depth in kilometers?
How should you behave while performing laboratory experiments?
Explanation:
Always behave responsibly in the laboratory. Do not run around or play practical jokes. Always check the safety data of any chemicals you are going to use. Never smell, taste or touch chemicals unless instructed to do so.
which of the following is a class of wave in physics
A. Ripple tank
B. Electromagnetic
C. Stationary
D. longitudinal
Answer: They are all types of waves
A. Ripple tank
B. Electromagnetic wave
C. Stationary wave
D. longitudinalwave
Explanation:
The burning of fossil fuels has added pollutants that contain sulfur atoms to the air. These pollutants have contributed to which of the following
A. Drought
B. temperature inversions
C. Tornadoes
D. Acid rain
how to increase current
Answer:
So to increase current of the circuit what you can do is :
1. Use conductor of low resistivity, ¶.
2. Use conductor of small length.
3. Use thick wire.
4. Decrease the temperature of the circuit.
5. If operating temprature is high than use semiconductor, because it have negative temprature coefficient.
6. Minimise the circuit losses.
Answer:
by making dam into near the water resource
A spherical balloon is being inflated and the radius of theballoon is increasing at a rate of 2 cm/s.(A) Express the radius (r) of the balloon as a function of thetime (t).(B) If V is the volume of the balloon as a function of theradius, find Vor and interpret it.
Answer:
A.) r = 2t
B.) V = 33.5t^3
Explanation:
Given that a spherical balloon is being inflated and the radius of the balloon is increasing at a rate of 2 cm/s
A) Express the radius (r) of the balloon as a function of the time (t).
Since the rate = 2 cm/s that is,
Rate = radius/ time
Therefore,
2 = r/t
Make r the subject of formula
r = 2t
(B) If V is the volume of the balloon as a function of the radius, find V or and interpret it.
Let assume that the balloon is spherical. Volume of a sphere is;
V = 4/3πr^3
Substitute r = 2t into the formula
V = 4/3π(2t)^3
V = 4/3π × 8t^3
V = 32/3 × πt^3
V = 33.5t^3
If Justin races his Chevy S-10 down highway 37 north for 2,560 meters in 60 seconds, what is
his velocity? a. Draw Justin's trip. What are his distance and displacement? b. The Chevy S-10
started rounding at 10 meters per hour. What is the acceleration at 30 seconds on the
highway? c. The S-10 has a force of 30 N. What is the mass of the car?
Answer:
A.) 42.7 m/s
B.) 0.33 m/s^2
C.) 90 kg
Explanation:
A.) If Justin races his Chevy S-10 down highway 37 north for 2,560 meters in 60 seconds, what is his velocity?
Velocity = displacement/time
Velocity = 2560/60
Velocity = 42.67 m/s
B.) The Chevy S-10 started rounding at 10 meters per hour. What is the acceleration at 30 seconds on the highway?
Acceleration = velocity/time
Acceleration = 10/30
Acceleration = 0.33 m/s^2
C.) The S-10 has a force of 30 N. What is the mass of the car?
Force = mass × acceleration
30 = mass × 0.33
Mass = 30/ 0.33
Mass = 90 kg
This is a sign of a chemical reaction that involves a new color being created during the reaction.
Answer:
The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change.
The mercury manometer of fig. P2.57 indicates a differential reading of 0.30 m when the pressure in pipe a is 30-mm hg vacuum. Determine the pressure in pipe
b.
Answer:
The pressure in pipe b is 33.4 kpa.
Explanation:
Given that,
Pressure in pipe a = 30 mm hg vacuum
Differential reading = 0.30 m
We need to calculate the pressure in pipe b
Using diagram
[tex]P_{B}+W_{oil}(h_{1}+h_{2})-W_{Hg}(h_{2})-W_{H_{O}}(h_{1})=P_{A}[/tex]
Where, P = pressure
W= specific weight
Put the value into the formula
[tex]P_{B}+W_{oil}(0.15+0.30)-W_{Hg}(0.3)-W_{H_{2}O}(0.15)=-W_{Hg}(0.030)[/tex]
Put the value of specific weight
[tex]P_{B}=-(133)\times(0.030)-(8.95)\times(0.45)+133\times(0.3)+9.80\times0.15[/tex]
[tex]P_{B}=33.4\ kPa[/tex]
Hence, The pressure in pipe b is 33.4 kpa.
If two people answer i will give brainliest to the first one that answers if right
What term best classifies cell A?
Choose 1 answer:
(Choice A) A Plant cell
(Choice B) B Fungal cell
(Choice C) C Animal cell
(Choice D) D Bacterial cell
Answer:
Choice A) A Plant cell
Explanation:
Can someone answer these for me, i will give you brainliest if it is correct
Answer:
Explanation:
a. time 0 = 0
time 5 = 5
c. all values are equilvalents.
b. slope is x = y
27 miles per gallon into kilometers per liter.
Answer:
11.479 kilometres per litre
Explanation:
for an approximate result, divide the fuel economy value by 2.352
27 miles per gallon is equivalent to approximately 6.09 kilometers per liter.
What is Unit conversion?A statement of the connection between units that are used to alter the units of a measured quantity without affecting the value is called a conversion factor. A conversion ratio (or unit factor), if the numerator and denominator have the same value represented in various units, always equals one (1).
To convert 27 miles per gallon to kilometers per liter, we need to use conversion factors:
1 mile = 1.60934 kilometers
1 gallon = 3.78541 liters
So, first we convert miles to kilometers:
27 miles * 1.60934 km/mile = 43.45218 kilometers
Then we convert gallons to liters:
1 gallon = 3.78541 liters
27 miles per gallon = 27 miles / 1 gallon = 27 / 3.78541 liters/mile = 7.13888 liters/kilometer
Finally, we divide the distance traveled in kilometers by the amount of fuel used in liters:
43.45218 km / 7.13888 liters = 6.09023 kilometers per liter
Therefore, 27 miles per gallon is equivalent to approximately 6.09 kilometers per liter.
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a marble is shot horizontally from a table .8 m High, and it lands, 1.2 meters away horizontally. what was the initial velocity of the marble as it left the table
Answer:
3 m/s
Explanation:
First, find the time it takes to land.
Given in the y direction:
Δy = 0.8 m
v₀ = 0 m/s
a = 10 m/s²
Find: t
Δy = v₀ t + ½ at²
0.8 m = (0 m/s) t + ½ (10 m/s²) t²
t = 0.4 s
Next, find the velocity needed to travel 1.2 m in that time.
Given in the x direction:
Δx = 1.2 m
a = 0 m/s²
t = 0.4 s
Find: v₀
Δx = v₀ t + ½ at²
1.2 m = v₀ (0.4 s) + ½ (0 m/s²) (0.4 s)²
v₀ = 3 m/s
suppose both the dog and the girl run at a speed of 2 m/s.Calculate both of there kinetic energies. kinetic energy of dog =
Answer:
78
Explanation:
Answer:
78
Explanation:
dakaylaRiley 12
The speed needed to escape the pull of Earth's gravity is 11.3 km/s. What is this speed in mi/h? (1 mile = 1609 m)
Answer:
11.3 km/sec * 1000 m/km / 1609 m/mi = 7.02 mi / sec
7.02 mi/sec * 3600 sec / hr = 25,300 mph
The value of the speed needed to escape the pull of Earth's gravity in miles per hour (mi/h) is 25282.8.
Given the following data;
Speed = 11.3 km/s1 mile = 1609 mIn this exercise, you're required to convert the value of the speed needed to escape the pull of Earth's gravity in kilometer per seconds (km/s) to miles per hour (mi/h).
Conversion:
1 mile = 1.609 kilometer
X mile = 11.3 kilometer
Cross-multiplying, we have;
[tex]1.609[/tex] × X = [tex]11.3[/tex]
[tex]X = \frac{11.3}{1.609}[/tex]
X = 7.0230 miles
Since we know that one (1) hour is equal to 3600 seconds, we would multiply the value of X by 3600 in order to convert it to miles per hour (mi/h).
X = 7.0230 × 3600
X = 25282.8 mi/h
Therefore, the value of the speed needed to escape the pull of Earth's gravity in miles per hour (mi/h) is 25282.8.
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Calculate the average speed of Terri's trip.
Answer:
please provide more information about the question so that I can help you
Rank the nonmetals in each set from most reactive (1) to least reactive (3). Bromine: Chlorine: lodine:
Answer:
2,1,3
Explanation:
Edge 2020