Describe how ultrasonic waves help ships navigate and how ultrasonic waves can be used for medical purposes

Answers

Answer 1
i don’t know about ultrasonic waves sorry !!:) !!

Related Questions

What causes the release of energy in an exothermic reaction? Bonds breaking Bonds breaking A catalyst A catalyst Bonds being formed Bonds being formed Electrons escaping the bond

Answers

Answer:

weak bonds break and strong bonds form

Explanation:

An exothermic reaction is a chemical reaction in which heat energy is evolved during the reaction process.

Bond formation requires energy while bond breakage releases energy. More energy is needed for the formation of weak bonds as compared to strong bonds.

Hence, when weak bonds break, they release more energy than needed to make a corresponding strong bond leading to the release of the remaining energy as heat.

what color does blue and cyan pigment make?

Answers

Answer:

Teal

Explanation:

Blue lightens the cyan.

Teal Beacuse it make it lighter

Please Help! Brainliest!

Convert the following to milligrams: 5.6 x 10-4 kilograms. Show your work on a separate sheet of paper and attach
with your assignment.

Answers

Hi there!

Here's a picture to show you. Does this help?

What type of organism is the common house cat?
F
parasite
G
saprophyte
H
autotroph
J
heterotroph

Answers

Answer:

F

parasite

Explanation:

Describe how urine is formed, beginning with the blood. In 5th grade language please​

Answers

Answer:

kidneys takes the waste out of the blood. It is then stored in the bladder, until the urinary tract takes the urine out of the body.

What is the percent by mass of C in benzene (C6H6)? The molecular weight of carbon is 12.0107 g/mol and of hydrogen 1.00794 g/mol

Answers

Answer:

92.26% of C

Explanation:

To solve this problem we must assume we have 1 mole of benzene. The mole contains 6 moles of C and 6 moles of H. We have to convert these moles to grams in order to find the total mass and mass percent will be:

Mass atom / Total mass * 100

Mass C: 6mol C * (12.0107g / mol) = 72.0642g

Mass H: 6mol H * (1.00794g / mol) = 6.04764g

total mass: 72.0642g + 6.04764g = 78.11184g

Mass percent of C will be:

72.0642g C / 78.11184g* 100

92.26% of C

Which energy transformation occurs when a match is lit?
A
Chemical energy to heat energy
B
Heat energy to potential energy
C
Electrical energy to heat energy
D
Kinetic energy to potential energy

Answers

Answer:

A

Explanation:

the chemical energy in the phosphorous in the match turns into heat energy once the match is struck and starts to combust.

Answer:

Chemical energy to heat energy

How many moles of nitrogen gas are present in a 28.9 dm3 temperature of 55.0 °C and a pressure of 144 kPa?

Answers

Given :

Temperature, T = 55° C = ( 55 + 273 ) K = 328 K .

Volume of container, V = 28.9 dm³ = 0.0289 m³ .

Pressure, P = 144 kPa = 144000 Pa .

To Find :

Number of moles of nitrogen  gas.

Solution :

We know, by ideal gas equation :

PV = nRT  ( R ( universal gas constant ) = 8.31 J K⁻¹ mol⁻¹ .

[tex]n = \dfrac{PV}{RT}\\\\n = \dfrac{144000\times 0.0289}{8.31 \times 328} \ moles\\\\n = \dfrac{4161.6}{2725.68}\\\\n = 1.53 \ moles[/tex]

Therefore, number of moles of nitrogen gas is 1.53 moles.

qestions do you have about plate tectonics

Answers

From the deepest ocean trench to the tallest mountain, plate tectonics explains the features and movement of Earth's surface in the present and the past.

Developed from the 1950s to the 1970s, the theory of plate tectonics is the modern update to continental drift, an idea first proposed by scientist Alfred Wegener in 1912 which stated that Earth’s continents had “drifted” across the planet over time. Wegener didn't have an explanation for how continents could move around the planet, but researchers do now: plate tectonics.  

Plate tectonics is the theory that Earth's outer shell is divided into large slabs of solid rock, called “plates,” that glide over Earth's mantle, the rocky inner layer above Earth’s core. Earth’s solid outer layer, which includes the crust and the uppermost mantle, is called the lithosphere. It is 100 km (60 miles) thick, according to the Encyclopaedia Britannica. Below the lithosphere is the asthenosphere—a viscous layer kept malleable by heat deep within the Earth. It lubricates the undersides of Earth's tectonic plates, allowing the lithosphere to move around.

Answer:

1. How fast do tectonic plates move? Answer: There are seven major plates: African, Antarctic, Eurasian, Indo-Australian, North American, Pacific and South American

2. What are the factors affecting plate tectonics? Answer: The force that causes most of the plate movement is thermal convection, where heat from the Earth's interior causes currents of hot rising magma and cooler sinking magma to flow, moving the plates of the crust along with them.

3. What 3 things support the theory of plate tectonics? Answer: Modern continents hold clues to their distant past. Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together. Fossils tell us when and where plants and animals once existed.

Explanation:

The picture shows a community living in a dry, grassy area. A few organisms have died off due to lack of a water source. ******Is this an example of an abiotic or biotic limiting factor? WHY

Answers

Answer:

brainly blurred the half of the question i cant read it completely

Explanation:

When
Mercury
orbits
the
Sun,
it
gets
as
close
as
4.8
x
107
miles
to
the
Earth.

It
gets
as
far
as
1.38
x
108
miles
to
the
Earth.

What
is
the
difference
of
these
two distances

Answers

Answer:

hdkdjfjhdakdhevghggggfdffggggfggcdhxgjcfogogi

PLEASE HELP ME WITH PHYSICAL SCIENCE!! PRETTY EASY QUESTION ​

Answers

Explanation:

Bbbbbbbbbbbbbbbbbbbbb

Answer:

B.

Explanation:

the substance would still be pure because both of the atoms are natural

it wouldnt create something pure or new it would just combine

so it would be B

hope this helps!

~goldfishareswag/brianna

:)

a- Write the name of the process when the electron falls to a lower energy level and a photon is emitted

Answers

Answer:

emission

Explanation:

when atoms return to lower energy levels they emit photons, in a process called emission

Scientists have been able to find a full record of Earth's fossil history, thus making the fossil record complete.

True or False?

Answers

Answer:

False

Explanation:

Few organisms were not preserved as well as others, and new fossils are found every day

What theoretical yield of NaCl would result from reacting 3.00 moles of Na2CO3 with excess HCl (aqueous)?

Answers

Answer:

350.7 g of NaCl

Explanation:

For this reactions our reactants are:

HCl and Na₂CO₃.

Then, the reaction is:

2HCl + Na₂CO₃ →  2NaCl  +  H₂CO₃

2 moles of hydrochloric acid react to 1 mol of sodium carbonate in order to produce 2 moles of salt and 1 mol of carbonic acid.

Ratio is 1:2. 1 mol of sodium carbonate can produce 2 moles of NaCl

Then, 3 moles of carbonate may produce (3 . 2) /1 = 6

We convert the moles to mass to determine the theoretical yield

6 mol . 58.45g /mol = 350.7 g

The theoretical yield of NaCl produced is 350.7 g.

What is NaCl?

NaCl is a salt, and it is an ionic compound.

The reaction is

[tex]\rm 2HCl + Na_2CO_3 \rightarrow 2NaCl + H_2CO_3[/tex]

2 mol of HCl reacts with 1 mol of [tex]Na_2CO_3[/tex] and produces 2 mol of NaCl and 1 mol of [tex]H_2CO_3[/tex].

The ratio will be [tex]Na_2CO_3[/tex] : NaCl

                                1 : 2

Then, for 3 mol of [tex]Na_2CO_3[/tex]

[tex]\dfrac{3 \times 2}{1} = 6[/tex]

Now, convert the moles to mass

[tex]6\; mol \times 58.45g /mol = 350.7 g[/tex]

Thus, the theoretical yield produced is 350.7 g.

Learn more about NaCl

https://brainly.com/question/1473063

what is the ionic equation for dilute hydrochloric acid and magnesium

Answers

Answer:

Mg(s) + 2H⁺(aq) ⟶ Mg²⁺(aq) + H₂(g)  

Explanation:

A net ionic equation shows all the ionic substances as ions and shows the correct state of each substance.

Magnesium react with hydrochloric acid according to the equation :

Mg(s)+2HCL(aq)----->MgCL2(aq) +H2(g)

This demonstration can be used to illustrate the characteristics reactions of metals with acid , a single replacement reaction ,or to demonstrate the generation of hydrogen gas.

Select the correct answer.
John is riding a ski lift to the top of Wildcat Mountain. He removes his gloves and rapidly rubs his hands together to warm them up. What
happens when John rubs his hands?
O A. The skin on his hands rapidly conducts heat, similar to metal.
O B. He traps heat between his hands because skin is an insulator. IS
O C. The particles In his hands vibrate faster because of friction.
O D. Thermal energy moves from his fingertips to his palms.
O E. He simulates a fever that'll raise his core body temperature.

Answers

Answer:

Fairly certain it's C. The particles In his hands vibrate faster because of friction :)

Answer:

C

Explanation:

Which change of phase is most likely occurring in the beaker

Answers

Answer:

Evaporation

Explanation:

Heat makes molecules move and eventually evaporate.

Lab: Limiting Reactant and Percent Yield
Student Guide
Pre-Lab Information
Purpose Explore the yield of a chemical reaction by identifying the limiting reactant, comparing the
theoretical and actual yields, and explaining the sources of error.
Time Approximately 45 minutes
Question While observing a chemical reaction, how can you tell which reactant is limiting?
Reaction The reaction of copper(II) chloride and aluminum is shown in this balanced equation:
3CuCl2 + 2Al  2AlCl3 + 3Cu
Hypothesis If a substance is the limiting reactant, then it will be fully consumed by the time the
reaction completes because it is the reactant that reacts completely and the reaction
cannot proceed further.
Summary You will react copper(II) chloride with different quantities of aluminum in two trials. You
will also calculate percent yield for Trial 2.

Answers

Answer:

pre lab information would be the thing you to ressearch the lab to get the information

Limiting Reactant and Percent Yield Lab Report attached

A train with an initial velocity of 31 m/s begins accelerating at rate of 0.0705 m/s^2. If the train travels for 180.5s, how far does it travel?

Answers

Answer:

v = 43.72 m/s

Explanation:

Given that,

Initial velocity of the train, u = 31 m/s

Acceleration of the train, a = 0.0705 m/s²

Time for which the train travel, t = 180.5 s

We need to find the final velocity of the train. Let it is v.. Using first equation of kinematics to find it such that,

[tex]v=u+at\\\\v=31+0.0705\times 180.5\\\\v=43.72\ m/s[/tex]

So the final speed of the train is equal to 43.72m/s.

Create a model of the atoms of a substance moving through the solid, liquid, and gas states.

Answers

Hope this helpssssssnsnekwnwjwj
Yes that is correct



What is the value that is MEASURED in a lab?

Answers

Answer:

To use standard laboratory measurement devices to measure length, volume and mass amounts.

Calculate the concentration of hydrochloric acid if 50.0 mL of hydrochloric acid is neutralized by 25.0 mL of 2.0 M sodium hydroxide. The neutralization reaction is shown below HCl + NaOH > H2O + NaCl

Answers

Answer:

1.0M HCl is the concentration of the acid

Explanation:

Based on the reaction, 1 mole of NaOH reacts per mole of HCl. That means the moles added of NaOH in the neutralization = Moles of HCl in the solution. With the moles and the volume in Liters we can find the molar concentration of HCl

Moles NaOH = Moles HCl:

25.0mL = 0.025L * (2.0moles / L) = 0.050moles HCl

Molarity:

0.050moles HCl / 0.0500L =

1.0M HCl is the concentration of the acid

Describe how temperature changes the average Molecular kinetic energy?

Answers

an increase in temperature will increase the average kinetic energy of the molecules. As the particles move faster, they will likely hit the edge of the container more often.

According to Kinetic Molecular Theory, an increase in temperature will increase the average kinetic energy of the molecules. As the particles move faster, they will likely hit the edge of the container more often. If the reaction is kept at constant pressure, they must stay farther apart, and an increase in volume will compensate for the increase in particle collision with the surface of the container.

hope this helps!

could i get brainiest?

PLSSS ANSWERRRRR????

Answers

the app socratic will help you to get the answer

An 886 mL sample of Neon gas is at 752 torr and 299 K. What will be the new volume if, with the pressure and amount of gas held constant the temperature is increased to 371 K?

Answers

Answer:

[tex]V_2=1099.35mL[/tex]

Explanation:

Hello there!

In this case, according to the given information, it is possible to infer that as both the amount of the gas and the pressure remains the same, we can solve this problem via the Charles' law a directly proportional relationship between the volume and temperature:

[tex]\frac{V_2}{T_2} =\frac{V_1}{T_1}[/tex]

Thus, by solving for the final volume, V2, we obtain:

[tex]V_2 =\frac{V_1T_2}{T_1} \\\\V_2 =\frac{886mL*371K}{299K}\\\\V_2=1099.35mL[/tex]

Best regards!

9
If you wanted to make 250 mL of a 0.01 M solution of CaCl, calculate how many moles of calcium chloride would be
needed. Your response must include both a correct numerical setup and the calculated result. [1]

Answers

Answer:

0.0025moles

Explanation:

Molarity of a solution (M) = number of moles (n) ÷ volume (V)

According to this question, to make 250 mL of a 0.01 M solution of CaCl, the following number of moles is needed:

Volume = 250mL = 250/1000 = 0.250Litres.

Using; molarity = n/V

0.01 = n/0.250

n = 0.0025

n = 2.5 × 10^-3 moles.

People don't want to live in a warming world so maybe do less things that emit greenhouse gasses.

Answers

Answer:

yea that's true

things you can do is: reduce ,reuse, and recycle

reduce the use of air/heat

remove lightbulbs and replace led bulb

drive less

plant a tree

Explanation:

A student titrated 50 cm of sulphuric acid (H2SO4)of an unknown concentration
in a flask with sodium hydroxide (NaOH).
The acid required 30 cm3 of 0.500 mol/dm3 NaOH to reach the end point
H2SO4(aq)
+ 2NaOH(aq)
Na2SO4(aq) + 2H2O()
Calculate the concentration the acid.
Concentration =
mol/dm3​

Answers

No. of mol. of NaOH used: (30/1000)*0.5= 0.015mol
Mole ratio of NaOH:H2SO4= 2:1
No. of mol. of H2SO4: 0.015/2= 0.0075mol
Conc. of acid= 0.0075/(50/1000)= 0.15moldm^-3

Hope it helps, drop a thanks

An oxidizing flame resembles the neutral flame slightly, but has an inner cone that is shorter and more pointed with an almost purple color instead of brilliant white true or false

Answers

Answer:

True

Explanation:

The answer to this question is true. The oxidizing flame is a flame which is gotten when oxygen is used excessively. The flame is bluish or almost purple in color. And it makes a hissing sound. The flame from this is shorter than the neutral flame. In the neutral flame there is neither the occurrence of oxidation or reduction.

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During the early 1900s, which event spurred the petroleum boom in Texas? A salesman is paid $15.00 per hour for 7 hours plus $9.00 for each sale, x, she makes. She wants to earn more than $150.Which inequality matches the situation? Think about the contest described in the Article. How did the contest work? What did it show? Do you think that computers will be able to write poetry as well as people one day? Explain. Use facts and details from the Article to back up your answer.Type your answer in the text box below. Pythagorean theorem-writing prompt (need help!!!) Which best describes Norman Bowker's reaction to the peaceful state of his hometown after the Vietnam War?A. It makes him feel confused about whether the news reports reached his town at all.B. It makes him feel resentful because he really wanted them to give him a parade.C. It makes him feel lonely, as though no one knows the war even happened. D. It makes him feel relieved that he no longer has to deal with violence Identify the true statements regarding liver glycogen phosphorylase a. Protein phosphatase 1 is abbreviated PP1. The binding of glucose to liver phosphorylase a shifts the equilibrium from the active form to the inactive form. Liver phosphorylase a concentration decreases when glucose enters the blood. As the concentration of phosphorylase a decreases, the activity of glycogen synthase increases. Liver phosphorylase a is regulated by AMP, adenosine monophosphate. When PP1 is bound to phosphorylase a, both PP1 and phosphorylase a are active. Describe the temperature, moisture and air pressure associated with a Continental Polar air mass.Use this and the picture to help Continental Polar Air Masses cold temperatures and little moistureThose who live in northern portions of the United States expect cold weather during the winter months. These conditions usually result from the invasion of cold arctic air masses that originate from the snow covered regions of northern Canada. Because of the long winter nights and strong radiational cooling found in these regions, the overlying air becomes very cold and very stable. The longer this process continues, the colder the developing air mass becomes, until changing weather patterns transport the arctic air mass southward. The simple interest on a certain sum for 5years at 8% per annum is Rs200 less than the simple interest on the same sum for 3years and 4months at 18% per annum.Find the sum *YEETS POINTS IN LAKE*P.S there are fish that will bite your finger so watch out and make it funny please Amiera has 3/4 of a bag of cat food. Her cat eats 1/10 of a bag per week. How many weeks will the food last? This tool lets you insert text anywhere in your document. O Cut O Drag O Paste Which of the following was not a purpose of wartime propaganda?To create public sympathy for wartime opponentsTo increase or maintain public support for the warTo encourage the public to support the war effort at homeTo increase enlistment in the armed forces 1. How many grams are in 1.7 x 10^23 particles of Cl2?2. How many moles are in 3.28 x 10^23 atoms of NaCl? *3. If I were to determine how many liters 26 grams of water is, what type of conversion would this be? *A Mass --> Moles --> ParticlesB Mass --> Moles --> VolumeC Volume --> Mass --> MolesD Moles --> Mass --> Volume Calculate the radian measure of a 30 degree angle. Use any method you like, including sketching in the circle diagram provided. Explain or show your reasoning. Plzzz help me asappp Im begging youI dont know I need help Included pictureQuestion is not hard so please answer correctly 1. How did Jackie feel about testifying against Paul Robeson? Calculate the value of Key in the following reaction if the equilibrium concentrations are[H2S] -0.25 M, (H2) - 0.88 M, [S2] -0.44M.2 H2Sig) = 2 H2(g) + S218) If y varies directly with x. and y=10 when x=5.6, find the value of y whenX=3 Judicial Review" means