Answer:
5 + 6 = 11
You just add the protons and the neutrons and you get the atomic mass
how can density be found
A car is traveling at an average speed of 70 m/s. How many km would the car travel in 6.5 hrs. ?
Answer:
38,769.23 milesExplanation:
given:
A car is traveling at an average speed of 70 m/s.
find:
How many km would the car travel in 6.5 hrs. ?
solution:
distance = velocity over time
let velocity = 70 m/s
time = 6.5 hrs.
convert velocity 70 m/s into m/h for consistency of units.
70 mi. x 3600 sec. = 252,000 mi/hour
sec. 1 hr.
now plugin values into the formula d = v/t
d = 252,000 miles/hour
6.5 hours
d = 38,769.23 miles
therefore, the distance travelled in 6.5 hours with a speed of 70 m/s is 38,769.23 miles
which is the final event that occurs when a star is forming
Answer:
D.) Nuclear fusion begins under high pressure
Explanation:
PLS ANSWER ASAP
A cone with a mass of 6 g has a radius measuring 5 cm and a height of 2 cm. What is its density?
A. 60 g/cm3
B. 52.33 g/cm3
C. 0.6 g/cm3
D. 0.11 g/cm3
Answer: Answer is D
I took the test little while back.
cardiorespiratory fitness improves the efficiency of the cardiovascular and the respiratory systems in delivering oxygen to the body
T
or
F
Answer:
true.
Explanation:
WILL MARK BRAINLIEST!!!!
Light reflects off many objects. Which model of light behavior best helps explain this effect?
Particle model
Wave model
Magnetic model
Electric model
Answer:
Wave model
Explanation:
Answer:
The answer would be a wave model
Explanation:
can u show me how u get the answer
Explanation:
[tex]p1 \times v1 = p2 \times v2 [/tex]
[tex]p1 = initial \: pressure \\ v1 = initial \: volume \\ p2 = final \: pressure \\ v2 = final \: volume[/tex]
You're looking for p2. So, divide both sides by v2...
[tex] \frac{p1 \times v1}{v2} = p2[/tex]
volume of a cylinder is
[tex]h \times \pi \: \times {r}^{2} [/tex]
let's assume r = 1
[tex] \frac{p1 \times (20cm \times \pi)}{(60cm \times \pi)} = p2[/tex]
the Pi's cancel out, the 20/60 can be reduced to 1/3.
So you end up with
[tex]p1 \times \frac{1}{3} = p2[/tex]
or as the book shows....
[tex] \frac{1}{3} p[/tex]
what the answer for my amswer get a brainly list plessss
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Answer:
A
Explanation:
to simplify let's make it apart the denominator into three part
[tex] \frac{ {3xy}^{2} }{ {x}^{2} {y}^{2} } - \frac{ {8x}^{2} y}{ {x}^{2} {y}^{2} } + \frac{ {5x}^{2} {y}^{2} }{ {x}^{2} {y}^{2} } [/tex]
now let's simplify
[tex] \frac{3}{x} - \frac{8}{y} + 5[/tex]
so the answer is A
hope it helps
for any question comment me ❤❤
Can someone answer this?
What is meant by the statement "Motion is relativel"?
Answer:
when an object move from its place is called an mation
What is the acceleration of a racing car if it’s speed is increased uniformly form 44m/s to 66 m/s over an 11 sec. period.
Answer:
[tex]a=2\ m/s^2[/tex]
Explanation:
Given that,
Initial velocity, u = 44 m/s
Final velocity, v = 66 m/s
Time, t = 11 s
Acceleration = rate of change of velocity
[tex]a=\dfrac{v-u}{t}\\\\a=\dfrac{66-44}{11}\\\\a=2\ m/s^2[/tex]
So, the acceleration of the car is [tex]2\ m/s^2[/tex].
A bar of gold has a temperature of 22°C, and a bar of aluminum has a
temperature of 27°C. Which statement explains why the bar of aluminum ha
a higher temperature?
A. The particles that make up the aluminum bar are moving more
slowly.
B. The particles that make up the aluminum bar are moving faster.
C. The aluminum bar has a lower density than that of the gold bar.
O D. The aluminum bar has less thermal energy.
The bar of aluminum has a higher temperature than gold bar as the particles that make up the aluminum bar are moving faster.
What is temperature?Temperature is a physical quantity that expresses hot and cold or a measure of the average kinetic energy of the atoms or molecules in the system.
What is thermal conductivity?Thermal conductivity is the rate at which heat is transferred by conduction through a unit cross-section area of a material, when a temperature gradient exits perpendicular to the area.
What are properties of aluminum?Aluminum has low density. It has high thermal conductivity, has excellent resistance for corrosion and can be easily cast, machined and formed.
What are properties of Gold?Gold has high corrosion resistance. It is good conductor of electricity.
Aluminum has high thermal conductivity than gold. So, the particles in the aluminum bar moves faster as compared to gold. Therefore, the temperature of aluminum bar is higher than gold bar.
To learn more about Aluminum and Gold here
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Answer: 3 years ago thats crazy
Explanation:
If you added sand to your coffee, what kind of mixture would your coffee now
be?
Answer:
A heterogenous mixture.
Explanation:
If you added sand to your coffee, the kind of mixture your coffee would now
be is a heterogenous mixture.
A heterogenous mixture can be defined as any mixture which has a different or non-uniform composition and properties throughout any given sample of the mixture. This ultimately implies that, the constituents of a heterogenous mixture always remain separate in the sample and as such comprises of two or more phases.
Hence, a mixture of sand and coffee is simply a heterogenous mixture and can easily be separated into their various components.
three importance of SI system
Answer:
Firstly they are, by design, easy to use in most scientific and engineering calculations; you only ever have to consider multiples of 10. If I’m given a measurement of 3.4 kilometres, I can instantly see that it’s 3′400 metres, or 0.0034 Megametres, or 3′400′000 millimetres. It’s not even necessary to use arithmetic, I just have to remember the definitions of the prefixes (“kilo” is a thousand, “megametre” is a million, “milli” is a thousandth) and shift the decimal point across to the left or the right. This is especially useful when we’re considering areas, speeds, energies, or other things that have multiple units; for instance,
1 metre^2 = (1000millimetre)^2 = 1000000 mm^2.
If we were to do an equivalent conversion in Imperial, we would have
1 mile^2 = (1760 yards)^2
and we immediately have to figure out what the square of 1760 is! However, the fact that SI is based on multiples of 10 has the downside that we can’t consider division by 3, 4, 8, or 12 very easily.
Secondly they are (mostly) defined in terms of things that are (or, that we believe to be) fundamental constants. The second is defined by a certain kind of radiation that comes from a caesium atom. The metre is defined in terms of the second and the speed of light. The kelvin is defined in terms of the triple point of water. The mole is the number of atoms in 12 grams of carbon-12. The candela is defined in terms of the light intensity you get from a very specific light source. The ampere is defined using the Lorentz force between two wires. The only exception is the kilogram, which is still defined by the mass of a very specific lump of metal in a vault in France (we’re still working on a good definition for that one).
Thirdly, most of the Imperial and US customary units are defined in terms of SI. Even if you’re not personally using SI, you are probably using equipment that was designed using SI.
A comet is cruising through the Solar System at a speed of 50,000 kilometers per hour for 4.5 hours time. What is the total distance traveled by the comet during this time?
Answer:
The total distance traveled by the comet is 225000 [km]
Explanation:
In order to determine the travel distance we must use the following kinematics equation:
x = v*t
where:
x = distance traveled [km]
v = velocity = 50000 [km/h]
t = time = 4.5 [h]
x = 50000*4.5 = 225000 [km]
what is measurement? why is it important to have regular supervision of the weights and measurement in the market?
Answer:
the comparison of known quantity to unknown quantity or standard guantity is called measurment
Explain an example of how energy is transferred from one form to another
you will get max points
Answer:
read the explanation
Explanation:
Purchased electricity is fed into our TVs and is converted to light and sound.
Electricity goes into an electric bulb and is converted to visible light and heat energy.
Chemical Energy is converted to Electrical Energy (stove)
Chemical food energy is converted to Energy to Work (person running).
Answer:
Gasoline/chemical is put into our cars, and with the help of electrical energy from a battery, provides mechanical energy/ kinetic energy
red is sus
E-mail is usually a poor choice for the distribution of sensitive electronic files because
A paper copies seem more official than e-mail
B. not all computers can read e-mails correctly
C. it is easy to send e-mail to the wrong person
D. e-mail is saved on the server that transfers it
Answer:
it's D
Explanation:
its on edge
material speed of light
space 3 x 108 m/s
water 2.25 x 108 m/s
glass 2 x 108 m/s
air 3 x 108 m/s
Light moves from air into a new material. The greatest refraction would occur when light passes through which material?
A. air
B. water
O c. glass
D. It would refract the same amount in each material.
Answer:
c glass
Explanation:
beacause glass is transparent and it would be easier to for refraction
104470
Consider this group of rocks: granite, marble, and gneiss.
What property was used to group these rocks?
color
hardness
streak
O grain
Answer:
Grain
Explanation:
I just got it wrong :)
What do we call the condition of the atmosphere at a certain time and place?
Answer:
Weather
Weather describes what the atmosphere is like at a specific time and place, and may include temperature, wind, and precipitation. Weather is the change we experience from day to day. Climate is the long-term average of weather in a particular spot.
Explanation:
If velocity of a particle is given by v=10+2t² m/s, the average acceleration between 2 sec and 5 sec is?
Answer:
14 m/s^2
Explanation:
Use the formula to get the velocities at 2, and 5 seconds.
Then use the average acceleration formula.
A car goes North a distance of 120 kilometers during a time period of 3.0 hours. What is the average
speed of the car during this time interval?
Answer:
the average speed of the car during this time interval is 40 m/s i thinkk..
First to answer and gets it correct gets brainliest
What creates Earth's magnetic field? Choose the best answer from the selections below.
a
the hot, dense ball of solid iron at the Earth's inner core
b
hot swirling iron at the Earth's outer core
c
The north and south poles
d
magnetic force
Answer:
b
Explanation:
try looking it up if u need further help google is there to help you
Answer:
the answer is b
2. Using the same list of living things show how they could be classified into three groups.
Group 1 ________
Group 2 ________
Group 3 _________
Using the same list, show how they could be classified into four groups.
Group 1 ________
Group 2 ________
Group 3 _________
Group 4 __________
Please someone help as soon as possible.
and for this assignment group has have a different name while you are using these words in the picture.
oh almost forgot part 1 of this in the picture also.
Answer:
Also, you could do this for the groups:
Group 1- creatures with scales
Group 2- creatures with fur
Group 3- creatures with feathers
For 4 groups you could possible do:
Group 1- no legs
Group 2- 2 legs with wings
Group 3- 2 legs without wings
Group 4- 4 legs
All circular motions are usually periodic but all periodic motions are not circular why
All periodic motions are not circular bcox they aren't similar to each other as u know the motion repeats the periodic table and also repeats itself of the tym perform the motion of the periodic...
Answer:
t is usually seen that all circular motions are usually periodic
Explanation:
but all periodic motions are not circular
this can be proved by an example for example when vehicles runs in uniform speed of motion then its speed is called periodic motion
where is his speed might not be called circular motion
if my answer is correct please mark my answer as brainliest
Because of the costs involved in maintaining high temperatures and pressure, nuclear method for generating electrical energy. is not yet a practical Which best completes the statement?
A.) fusion
B.) fission
C.) energy
D.) generators
Answer:
A. Fusion
Explanation:
Because of the costs involved in maintaining high temperatures and pressure, nuclear fusion method for generating electrical energy.
What is nuclear fusion?
Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles with the release of energy.
The energy realeased in the process is known as nuclear energy which can be converted into electricity.
The downside of this method of electricity generation is the equipment that will accomodate the high temperature process.
Thus, because of the costs involved in maintaining high temperatures and pressure, nuclear fusion method for generating electrical energy.
Learn more about nuclear fusion here: https://brainly.com/question/17870368
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why is velocity called vector quantity while speed is a scalar quantity
Answer:
velocity is the rate of change of distance moved with a time in a specific direction. While speed is the rate if distance with time in no specific direction
Explain what cell theory is. Describe the history behind cell theory and the
scientists who were involved in forming the theory
Answer:
By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
Explanation:
i got that from google hopefully it works
Which statement is always true about objects which exert gravitational force on each other? A. They are a very large size. B. They exist only in outer space. C. They are a speed. D.They are a mass.
Answer:
The answer is D. They are a mass.
Answer:
“they have mass” because if they don’t have mass they can’t exert force even if they have speed if they have no mass they can’t do anything or exert force
Explanation:
