The complete question is;
Determine the order of magnitude of the following small number by entering the appropriate exponent n below: 6,370km≈10^n km .
Order of magnitude is 3.
Now, when dealing with order of magnitude, we first write the number in scientific notation. We will have; 6.37 × 10³ kmThe second thing we now do is to approximate the numerical part to either 1 or 10 as the case may be.In this case, we have 6.37 and it is closer to 10 than 1.
Thus, rewriting our number, we now have; 10 × 10³ kmThe order of magnitude is the exponent attached to the 10 on the right.
Thus, order of magnitude is 3.
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The order of magnitude of the given number will be "3.804".
According to the question, the number is:
→ [tex]6370 \ km = 10^n \ km[/tex]
By taking "[tex]log_{10}[/tex]" both sides, we get
→ [tex]log_{10}(6370) = log_{10} \ 10^n[/tex]
By putting the values accordingly, we get
→ [tex]log_{10} (6370) = n[/tex]
→ [tex]n = 3.804[/tex]
Thus the above answer is correct.
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hằng số phổ biến chất khí
Answer:
please in english......................................
Explanation:
If Scobie could drive a Jetson's flying car at a constant speed of 160.0 km/hr across oceans and space, approximately how long would Scoobie take to drive around Earth's equator in days
Scobie will take 10 days to drive around Earth's equator.
To calculate the time that takes Scobie to drive around Earth's equator we need to find the distance, which is given by the equation of a circumference:
[tex] d = 2\pi r [/tex]
Where:
r: is the Earth's radius = 6371 km
Then, the distance is:
[tex] d = 2\pi r = 2\pi*6371 km = 40030.2 km [/tex]
Now, if we divide the above distance by the speed of the car we can find the time:
[tex] t = \frac{d}{v} = \frac{40030.2 km}{160.0 km/h} = 250.2 h*\frac{1 d}{24 h} = 10 d [/tex]
Therefore, Scobie will take 10 days to drive around Earth's equator.
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The microwave portion of the spectrum has wavelengths ranging from 1 mm to 1 m. Find the corresponding frequencies. g
Answer:
f = c / y where y is the wavelength
f1 = 3 *10E8 m/s / .001 m = 3 * 10E11 / s
f2 = 3 * 10E8 m/s / 1 m = 3 * 10E8 / s
Convert 4 centimeters to meters using dimensional analysis and USE SCIENTIFIC NOTATION. (if you dont your answer is getting one star and reported). Please go step by step as I am having difficulty with this subject. Best answer get Brainliest
Answer:
[tex]thank \: you[/tex]
Question:-
Convert 4cm to m
Solution:-
Lets do
First note down the below formula
[tex]\boxed{\sf 1m=10^{2}cm}[/tex]
Then
[tex]\boxed{\sf 1cm=10^{-2}cm}[/tex]
Now we are given 4cm
So convert
[tex]\\ \sf\longmapsto 4\times 10^{-2}m[/tex]
If we simplify to decimal
[tex]\\ \sf\longmapsto 4cm=0.04m[/tex]
Hence done .
Which of the following does not represent a question that can be answered by science?a. How much energy is released in a given nuclear chain reaction? b. Can a nuclear chain reaction be controlled? c. Should uncontrolled nuclear reactions be used for military applications?
d. What is the half-life of a waste product of a nuclear reaction?
Answer:
c. Should uncontrolled nuclear reactions be used for military applications?
Explanation:
The question on wether to use technology for military applications, is not a science question but a moral dilemma
The question that can not be answered by science is the question; "Should uncontrolled nuclear reactions be used for military applications?".
Science is empirical in its approach. This implies that the questions that are answered by science are questions that are testable and can be be verified in a laboratory.
Science does not answer questions that deal with the opinions of various individuals. That is completely outside the purview of scientific investigation.
Hence, science does not answer the question; Should uncontrolled nuclear reactions be used for military applications?
This question deals with moral values and the opinions of people about a matter and not empiricism.
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what is work - energy theorem ??
The work-energy theorem explains the idea that the net work - the total work done by all the forces combined - done on an object is equal to the change in the kinetic energy of the object. After the net force is removed (no more work is being done) the object's total energy is altered as a result of the work that was done.
This idea is expressed in the following equation:
is the total work done
is the change in kinetic energy
is the final kinetic energy
is the initial kinetic energy
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plz help me with this question
Explanation:
Here,
initial velocity(u)=25m/s
final velocity (v)=0m/s
time taken(t)= 5 second
Now,
If Scoobie could drive a Jetson's flying car at a constant speed of 160.0 km/hr across oceans and space, approximately how long would Scoobie take to drive around Earth's equator in days
What is the average velocity if the initial velocity of an object is 10 m/s & the final velocity is 28 m/s
Answer:
[tex]v_{1} = 19 m/s[/tex]
Explanation:
[tex]v_{1} = \frac{(v_{2} + u)}{2}[/tex], where [tex]v_1[/tex] = avg. velocity, [tex]v_2[/tex] = final velocity, and [tex]u[/tex] = initial velocity.
What is the kinetic energy of a 0.5 kg soccer ball that is traveling at a
velocity of 3 m/s?
What’s the answer
Answer:
kinetic energy = 1/2mv²
k.E =1/2 X 0.5 X 3²
k.e = 9/4
K.E = 2.25j
Explain how improving the EXERGY may be as good, if not better than discovering new/oil coal mines.
Answer:
It is necessary to search for new sources of energy because the sources we have now are non-renewable and exhaustible. The usage of these sources are increasing day by day and if this continues then one day we wlii be left with none so it is necessary to search for new sources of energy
PLEASE MARK ME BRAINLIEST2 Examples of Gravitational Potential Energy
Answer:
Examples of items with gravitational potential energy include:
A raised weight
Water that is behind a dam
A car that is parked at the top of a hill
A yoyo before it is released
River water at the top of a waterfall
A book on a table before it falls
A child at the top of a slide
Ripe fruit before it falls
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how far will a rubber ball fall in 10 seconds
what would be the final velocity of this and what would be the average velocity
Answer:
490 meters
Explanation:
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The fastest and longest skydive fell an amazing 19.5 miles. His average speed while falling was 254 mi/hr. How much time did the dive last? Show Work
We have that the time the dive lasted was
[tex]T=0.076771 hours[/tex]
From the Question we are told that
Fall distance 19.5 miles
Velocity v= 254 mi/hr
Generally the equation for the Time is mathematically given as
[tex]T=\frac{v}{d}\\\\T=\frac{19.5}{254}[/tex]
[tex]T=0.076771 hours[/tex]
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Convert the following statement to the language used by physicists, "I am cold, please turn on the heat."
Answer:
Explanation:fog
Explain how the lithosphere, hydrosphere, and atmosphere individually and collectively affect the biosphere. (2 points)
The lithosphere is the solid layer of Earth, the hydrosphere is the water-based part, and the atmosphere is the air, they work together to shape the biosphere.
What is the lithosphere?The lithosphere is the soil part that composes the Earth's planet (i.e., the soil), the hydrosphere refers to oceans and all water bodies, while the atmosphere is the layer of air. These three layers interact with biotic factors to shape the biosphere.
In conclusion, the lithosphere is the solid layer of Earth, the hydrosphere is the water-based part, and the atmosphere is the air, they work together to shape the biosphere.
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Closure: Jenga's Pizza Delivery
A pizza delivery guy will travel 17km to the first house, 13km to the second house, 137km to the 3rd
house. Would he want to get paid by KM of distance traveled or kilometer of displacement
traveled? “He would want to be paid by..."
Answer:
distance traveled
Explanation:
Assuming he ends where he started, his displacement is zero, while his distance traveled is 17 +13 +137 = 167 km. He would want to be paid by distance traveled.
Báo cáo thực hành
Bài 1: Sóng trên dây: https://phet.colorado.edu/vi/simulation/wave-on-a-string
Bài 2: Cầu cân bằng: https://phet.colorado.edu/sims/html/circuit-construction-kit-dc-virtual-lab/latest/circuit-construction-kit-dc-virtual-lab_vi.html
Answer:
which language is this
Explanation:
A rock is thrown downward from the top of a cliff with an initial speed of 20 m/s. If the rock hits the ground after 5.0 s, what is the height of the cliff? (Disregard air resistance. a =-g=-9.81 m/s2.)
（i want step by step)
Answer
I hope it's helps you
Rowenda is stopped on the side of the road. She then starts pedaling her bicycle for 15 seconds. Her final
velocity is 9 m/s. What is her acceleration while she is pedaling?
Explanation:
acceleration = change in velocity / change in time
a = v2-v1
- - - - - -
t
V1 = 0 ( since she stopped)
V2 = 9 m/s
t =15s
a = 9 - 0
- - - -
15
= 0.6m/s^2
When you put water in the ice tray in the freezer, water becomes ice. Ice is more ordered than water. Is this a violation of Second Law of Thermodynamics
Answer:
No because the heat that moved out of the water to make ice caused an even greater disorder in the environment around it.
Explanation:
For a company to develop an effective customer-centric culture, there is always room for:
A. Larger product research and development investment
B. Improvement
C. More customers
D. More accurate market research
what conditions might a cause scientist to modify or revise a hypothesis
Answer:
scientists might modify or revise a hypothesis after a trial run that didn't go how they thought.
In a model of the solar system that was about as large as a college campus how large would the Sun be?
About the size of a basketball.
About the size of a marble.
About the size of a softball.
About the size of a small car
For each of the problems below, you will need to draw a graph to find the solution.
3. A driver who is moving at 15 m/s, sees a stop light and puts on the brakes 30 m before an intersection.
a) What acceleration will the driver have to have to stop before entering the intersection?
b) How much time will it take to stop the car?
4. A boy standing on a bridge spits into the water below. He hears the splash 1.5 seconds later. How high is the bridge?
5. A ball is thrown upwards at 20.0 m/s.
a) How far has it traveled after 4.0 seconds?
b) What is its velocity at that time?
Answer:
Final velocity (v) of an object equals initial velocity (u) of that object plus acceleration (a) of the object times the elapsed time (t) from u to v. Use standard gravity, a = 9.80665 m/s2, for equations involving the Earth's gravitational force as the acceleration rate of an object.
Explanation:
a 24kg remote control car travels 7 meters in 3 seconds. calculate the car's momentum
Answer:
Explanation:
ASSUMING that velocity is constant during the 3 seconds,
or that we are satisfied with AVERAGE momentum
p = mv = 24(7/3) = 56 kg•m/s
As more information is found, some scientific theories are adapted and others are discarded. Because science can adapt to account for new information, it has proved durable over time.
For which claim does this statement provide evidence?
(1 point)
O A strength of science is that its theories are easily derived.
O A strength of science is that it supports one explanation over others.
O A strength of science is that it provides consistent explanations
O A strength of science is that its theories are tested.
Answer:
A strength of science is that it's theories are tested
Estimate the magnitude of the electric field due to the proton in a hydrogen atom at a distance of 5.29 x 10-11 m, the expected position of the electron in the atom.
a) 1012 N/C
b) 10-11 NIC
c) 106 N/C
d) 1014 N/C
e) 108 N/C
The magnitude of the electric field due to the proton in a hydrogen atom at a distance of 5.29 x 10-11 m, the expected position of the electron in the atom will be a) 1012 N/C
What is electric field due to a charge ?Electric field is defined as the electric force per unit charge. The direction of the field is taken to be the direction of the force it would exert on a positive test charge.
electric field = k * q / r^2
given
distance (r) = 5.29 x 10-11 m
q of proton = + 1.602 * 10 ^ -19 C
k = 9 * 10 ^9 Nm^2 / C^2
Electric field = (9 * 10 ^9 Nm^2 / C^2 * 1.602 * 10 ^ -19 C )/ (5.29 x 10-11 m)^2
= 14.418 * 10 ^ (-10) / 27.98 * 10 ^ (-22)
= 0.5153 * 10 ^12 N/C
correct option a) 1012 N/C
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Pls help me how to find absolute uncertainties in (M+m)
Answer:
m uncertainty percentage :
+- 2.5
+- 7.5
+- 12 5
+- 17.5
+- 25
+- 30
M uncertainty percentage = 16.5
m + M uncertainty percentage;
+- 19
+- 24
+- 29
+-34
+- 41.5
+- 46.5
ex 50 × 5 ÷100 = 2.5
4. A car slows down from 36 km.h to stop in 25 s. 4.1 Define "acceleration”. 4.2 Convert 36 km:h-' to m's-1.
1. Acceleration is the change in velocity of an object per unit time.
2. 36 km/h
= 36000 m/60×60 s
= 36000 m/3600 s
= 10 m/s
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