Explanation: True
Properties that help identify a mineral in a rock are: color, hardness, luster, crystal forms, density, and cleavage.
Imagine you live next-door to your best friend. Your bedroom windows face each other, and you want to set up a way to communicate privately using waves. You have these supplies:
a long string
a spring toy long enough to stretch between your windows
metal cans
a Morse code alphabet decoder (Morse code is a system that represents letters of the alphabet with dots and dashes) imagine you live next-door to your best friend
Answer:
A morse code alphabet decoder maybe?? I am confused
Explanation:
Answer:
J3rk it in the window ;-)
Explanation:
Explain the challenges in developing an accurate rating system for earthquakes. What kinds of variables are there?
Answer:
In turn, the main factors affecting earthquake shaking intensity are earthquake depth, proximity to the fault, the underlying soil, and building characteristics—particularly height. Let's take a look at the latter two (soil and buildings) and how they interact.
The challenge in developing an accurate rating system for earthquakes is due to complicated relationship between variables such as magnitude and intensity of earthquake.
Earthquakes are associated with magnitude and intensity.
The challenge in developing an accurate rating system for earthquake is due to complicated relationship and dependency between the magnitude and intensity of the earthquake.
Intensity of earthquake is the observed effects resulting from the earthquake such as; shaking of buildings, people etc. This intensity of the earthquake depends on the location of the observer with respect to earthquake epicenter.The magnitude of the earthquake relates to the amount of energy released during the earthquake.Thus, the challenge in developing an accurate rating system for earthquakes is due to complicated relationship between variables such as magnitude and intensity of earthquake.
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An empty container has a mass of 3 g. When it is filled with 5 cm3 of a liquid,
the total mass of container and liquid is 7 g. What is the density of the liquid, in g/cm3?
Answer:
THE MASS OF THE LIQUID IS 22.5 g
Explanation:
Density = 0.180 g/cm3
Side length = 5 cm
Mass = unknown
To calculate the mass of the liquid, we use the formula:
Mass = density * volume
Volume of a cube or cuboid container = l^3
Volume = 5 ^3 = 125 cm3
So therefore, the mass of the liquid is:
Mass = 0.180 * 125
Mass = 22.5 g
In conclusion, the mass of the liquid in the container is 22.5 g
Milltown is 15ºC (59ºF) in the spring. What is the source for most of the energy that causes this temperature?
Answer:
The sun
Explanation:
The sun
The source for most of the energy that causes this temperature in Milltown with temperature 15ºC (59ºF) is the sun.
The Sun which is a star at the center of the Solar System carried some great amount of energy which is radiating the energy mainly as visible light, ultraviolet light, and infrared radiation.
Therefore, sun is responsible for temperature in Milltown with temperature 15ºC .
Learn more about sun at;
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Moving a spring toy up and down will create what kind of disturbance?
parallel to the wave motion
in a circular motion
in the same direction as the wave motion
perpedicular to the wave motion
Answer:
Perpindicular to the wave motion.
Explanation:
Moving a spring toy up and down will create a disturbance in the same direction as the wave motion.
We can classify waves by the direction of wave motion in which case waves are classified into;
Transverse wavesLongitudinal wavesLongitudinal waves are waves in which the direction of disturbance is in the same direction as the wave motion. The wave along a spring is a longitudinal wave therefore; moving a spring toy up and down will create a disturbance in the same direction as the wave motion.
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3. Atoms with the same number of protons and electrons are neutral, and their charges add up to
a) zero
b) one
c) ten
Answer:
a) zero.
Explanation:
If the charge of an atom is neutral, then that means it has neither a negative charge nor a positive charge. So, it would have a charge of 0.
Hope this helps!
How is sleet different from hail?
Answer:
Hail occurs in warm weather, while sleet occurs during cold weather. When the temperature falls below 32 degrees, precipitation falls out of a cloud as snow. ... Unlike hail, sleet is tiny in size and falls only once from the sky.
Explanation:
Hopefully its right :)
A spring is compressed between two blocks, one with a mass of 2 kg and the other with a mass of 3 kg. If the 2 kg block has an average acceleration of 6 m/s^2 when the spring acts on it, what will be the average acceleration of the 3 kg block???
Answer:
2=6
3=9
Explanation:
I think this is right I'm not sure but I have done problems like this and did based on what I remember.
The average acceleration of the 3 kg block is 4 m/s².
The given parameters;
mass of first block = 2 kgmass of second block = 3 kgacceleration of the first block, = 6 m/s/sAccording to Newton's third law of motion, action and reaction are equal and opposite.
The force exerted on both blocks are equal and opposite.
[tex]F = ma\\\\m_1 a_1 = m_2a_2\\\\a_2 = \frac{m_1 a_1}{m_2}\\\\a _2 = \frac{2\times 6}{3} \\\\a_2 = 4 \ m/s^2[/tex]
Thus, the average acceleration of the 3 kg block is 4 m/s².
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What moon phase is shown in the picture ?
the answer is waxing gibbous moon
Explanation:
.
If 10 crests and 10 troughs pass through a point in 5 seconds. Calculate its time period and frequency?
Answer:
frequency = 5 /s
period = 0.5 s/
Explanation:
number of revolution = 10+10/2 = 20/2 = 10
frequency = n/t = 10/5 = 5 /s
period = t/n = 5/10 = 0.5s
Please write in complete sentences.
How does density affect refraction?
Diamonds are a very dense material. Predict what would happen to the light ray if you projected it from the air through a diamond.
Answer:
The density of a material affects the speed that a wave will be transmitted through it. In general, the denser the transparent material, the more slowly light travels through it.
True or False: There is the same amount of water on earth today as there was when earth was formed.
Answer:
Yes the water amounts are the same.
Explanation:
How does the intensity of a sound wave change if the distance from the source increases by a factor of 2?
If the distance from the source is doubled or increased by a factor of 2, then the intensity is quartered decreased by a factor of 4.
What is the intensity of sound wave?A sound wave's intensity is inversely related to density and speed and proportionate to the change in pressure squared.
The region that the sound waves cover grows as one gets farther from the source of the sound. The intensity and loudness of the sound are reduced because the same quantity of energy is dispersed over a larger region.
Inversely proportional to the square of the source's distance, the intensity varies.
Therefore, if the distance from the source is doubled or multiplied by a factor of 2, the intensity is reduced by a factor of 4 and then by a fourth.
When a time difference is twice, intensity is reduced by a factor of 4 each time.
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#SPJ5
please help me !!!!!!
Answer:
A
Explanation:
A disadvantage is that sexual reproduction takes longer than asexual reproduction. A mate must be found, the egg must be fertilised by sperm, and then the offspring develop. ... This means that some individuals would survive and be able to reproduce and generate more offspring.
Hello!
I need your help
I have a friend who is in 5th grade, she doesn't know what force and motion is I wanna make her like a help page?
Can someone help me put stuff into the sheet?
Answer:
Explanation:
Force = something being pulled or pushed
Motion = what the object is doing, most likely moving
i think thats right
Naoki's bicycle has a mass of 9 kg. If Naoki sits on her bicycle and starts pedaling with a force of 107.2 N, causing an acceleration of 1.6 m/s2, what is Naoki's mass?
A.
69 kg
B.
58 kg
C.
67 kg
D.
14 kg
PLZ HELP ME........thank you
Answer:
Explanation:
F = ma
m = F/a
m = 107.2/1.6 = 67 kg
so Naoki's mass must be the total mass - mass of the bike
so her mass is 67 - 9 = 58 kg...B
Why did you need to heat the water to make the nectar?
A. Heating the water increases the solubility of the sugar.
B. Heating the water decreases the melting point of the sugar.
C. Heating the water increases the boiling point of the sugar.
D. Heating the water increases the particle motion of the sugar.
Answer:
D
Explanation:
Heating up the solvent gives the molecules more kinetic energy. The more rapid motion means that the solvent molecules collide with the solute with greater frequency and the collisions occur with more force. Both factors increase the rate at which the solute dissolves.
Where can Microsoft users browse forums by topic, search existing questions and answers, or ask their own questions?
Group of answer choices.
A. Community and Forum Resources.
B. Get Live Help.
C. Tech Specs.
D. Top Support Issues.
Answer:
A. Community and Forum Resources.
Explanation:
Microsoft is a multinational corporation that designs and develops various types of software applications or programs such as Microsoft operating system (OS), Microsoft Word, Microsoft Excel, Microsoft Access, Microsoft PowerPoint, etc., to avail end users the ability to perform different tasks on their computers.
Whenever these users encounter a problem with any of these software applications or programs, they can easily go to the official forums and communities to get help from professionals and other end users who may have experienced such problems in the past. These community and forums are typically interactive in nature and as such serves its purpose often times.
Hence, Microsoft users can browse forums by topic, search existing questions and answers, or ask their own questions on Community and Forum Resources.
Discuss a time when you made an impulsive decision. What was the decision? Why did you make your decision
impulsively? What were the consequences of the decision? If you had the decision to make all over again, how would you
change your decision?
What is the size of the force acting on a copper wire with a magnetic flux density of 3.6 x 10 2 T acting at
right angles to the wire of length 19 m and current of 0.043 A? Round your answer to 2 significant
figures.
Answer:
2900 N
Explanation:
We are given;
Magnetic flux density; B = 3.6 × 10² T
Length of wire; L = 19 m
Current; I = 0.043 A
Formula for force in this regards is;
F = BIL
Where;
B is Magnetic flux density
I is current
L is length
Thus;
F = 3.6 × 10² × 0.043 × 19
F = 2941.2
To 2 significant figures gives;
F = 2900 N
When ionic compounds are made using transition metals, ______________ are used in their naming.
Answer:
Romen numerals
Explanation:
1. The core of a red dwarf will eventually turn into a(n): a) medium mass star b) white dwarf c) planetary nebula d) sun e) black dwarf
Answer:
B
Explanation:
White dwarf. I love this type of science.
Answer:
I think planetary nebula but I'm not 100% sure
Explanation:
In the reaction 2Ca + O2 → 2CaO for every 2 Ca you will need how much O2?
a.
1
b.
2
c.
3
d.
4
Answer:
1
Explanation: that is the ratio
what are three ethical rules for scientific research
Answer:
duty to society beneficence conflict of interest
Explanation:
what is the weight of the pumpkin with a mass of 5kg
Answer:
11.023 lb
Explanation:
how much work is done to move a 25 kg Mass 8 meters
Answer:
So, the power done is 196 watts.
Explanation:
14. Which moon has more of an elliptical orbit? Why?
Earth's moon (.0549)
or
Neptune's largest moon Triton (.000016)
Answer:
Triton orbits Neptune in what is known as a retrograde orbit. This means that it orbits Neptune a direction opposite the planet's rotation. ... Others think that Triton may have been formed elsewhere and then captured by Neptune's gravity.
Explanation:
i hope it's help......
A delivery truck driver’s round trip route from the warehouse takes her 3 km East, then 1 k North, then 3 km West, and finally 1 km South. Which of the following statements cannot be true?
a. The displacement of the trip is zero
b. The distance of the round trip is 8 km
c. After driving 3 km East, the magnitude of displacement and distance are equal
d. The total displacement and distance are the same after the trip
Answer:
D I think hope this helps you
Why does the North star not move but the other stars move
Answer:
it's the star in the center of the star field
Explanation:
Why Doesn't Polaris Move? Polaris is very distant from Earth, and located in a position very near Earth's north celestial pole. ... Polaris is the star in the center of the star field; it shows essentially no movement. Earth's axis points almost directly to Polaris, so this star is observed to show the least movement
PLS HELP WTH THIS FOR BRAINLIEST
Answer:
1. Pioneer
2. Primary
Explanation:
Pioneer Species are the first organisms to colonize barren environments.
Primary Succession is the development of an ecosystem of a barren environments!
I hope this helped! :)
Answer:
The first answer is Pioneer and I think the second is Primary
Explanation: