5kg of copper ball and I kg of water are at the same temperature of 31 C. Which
substance loses more heat energy, when both of them are cooled upto 30°C​

Answers

Answer 1

Answer:

r

Explanation:


Related Questions

Air terjun dari ketinggian 9 m digunakan 75% energinya untuk membangkitkan listrik bertegangan 220 volt. Jika massa air yang jatuh sebanyak 13 kg, maka yang diperlukan untuk mencapai arus 2 A adalah . . . .

TOLONG DONGG PLS

Answers

Answer:

2356800874321358900875432112375

Explanation:

yes deez

Match the terms with their definitions. (4 points)
1.
Absolute zero
2.
Heat
3.
Temperature
4.
Latent heat
a.
Energy transferred from one object to another due to a temperature difference
b.
The degree of hotness or coldness of a body or environment
c.
The temperature at which a substance has no kinetic energy per particle to give up
d.
The energy released or absorbed by a substance during a change of state

Answers

ANSWERSCABD

Absolute zero The temperature at which a substance has no kinetic energy per particle to give up

Heat Energy transferred from one object to another due to a temperature difference

Temperature The degree of hotness or coldness of a body or environment

Latent heat The energy released or absorbed by a substance during a change of state

The correct matches of the terms are Absolute zero represents the absence of thermal energy, heat is the transfer of energy, temperature measures the intensity of heat, and latent heat is involved in phase changes.

1. Absolute zero is the temperature at which a substance has no kinetic energy per particle to give up. Absolute zero is the lowest possible temperature, at which all molecular motion ceases.

2. Heat is the energy transferred from one object to another due to a temperature difference. Heat is the transfer of thermal energy from a hotter object to a colder object.

3. Temperature is the degree of hotness or coldness of a body or environment. Temperature measures the average kinetic energy of the particles in a substance, indicating how hot or cold it is.

4. Latent heat is the energy released or absorbed by a substance during a change of state. Latent heat is the heat energy absorbed or released when a substance undergoes a change of state, such as melting, vaporization, or condensation, while the temperature remains constant.

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The typical college freshman spends an average of =150 minutes per day, with a standard deviation of =50 minutes, on social media. The distribution of time on social media is known to be Normal. The third quartile is: 0.75minutes. 183.72 minutes. 0.25minutes. 116.27 minutes.
183.72 minutes.

Answers

The third quartile is 183.72 minutes. So, the answer is 183.72 minutes.

Given: The typical college freshman spends an average of =150 minutes per day, with a standard deviation of =50 minutes, on social media and the third quartile is 0.75.

Therefore, we can determine the answer as follows:

We know that the third quartile, denoted by Q3, is the value such that 75% of the data lies below it. So, z-score corresponding to the third quartile is given by:

z = invNorm(0.75)

Where, invNorm is the inverse Normal distribution function.

By definition, the inverse Normal distribution gives the z-score given the area under the Normal distribution curve. Here, we need to find the area corresponding to the upper tail of 0.25 (since 75% of the data lies below the third quartile). This can be calculated as follows:

Area to the left of Q3 = 1 - Area to the right of Q3= 1 - 0.25 = 0.75

Therefore, the z-score corresponding to this area is given by:

z = invNorm(0.75) = 0.6745

Now, the value of the third quartile can be obtained by using the z-score formula as follows:

z = (X - μ) / σ

where, X = value of the third quartile, μ = population mean = 150 (given), σ = population standard deviation = 50 (given)

Substituting the values, we get:

0.6745 = (X - 150) / 50

Solving for X, we get: X = 150 + 0.6745 * 50X = 183.72

Therefore, the third quartile is 183.72 minutes. So, the answer is 183.72 minutes.


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How much force in newtons is required to accelerate a shootout weighing 4 kg at 21m/s

Answers

84 Newton of force is required to accelerate a shootout.

F = ma

F = force,

m = mass, given = 4kg

a = acceleration, given = 21 m/\(s^{2}\)

Put these values in formula, F = ma

F = 4 × 21

F = 84 N

Hence, 84 Newton of force is required to accelerate a shootout.

A push or pull of an object is called force. The unit of force is kg m/\(s^{2}\) or newton and is represented by N.

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Can someone help ASAP please!

Can someone help ASAP please!

Answers

Answer:

junk food, alcohol, soda, microwave food, candy, some sugary drinks

a box is pushed with a force of 75 n while it moves 6.5 m if this is done in 15 s how much power is used

Answers

If a box is pushed with a force of 75 n while it moves 6.5 m if this is done in 15 s, the power used is 32.5 W

P = W / t

W = F d cos θ

P = Power

W = Work

t = Time

F = Force

d = Distance

θ = Angle between force and displacement vector

F = 75 N

d = 6.5 m

t = 15 s

θ = 0°

P = F d cos θ / t

P = 75 * 6.5 * cos 0 / 15

P = 487.5 / 15

P = 32.5 W

Therefore, the power used is 32.5 W

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True or False
further the sun, the longer the shadow

Answers

Answer: Yes the further the sun is away the longer the shadow is. At noon,the shadow is the shortest because its straight up above you. If this helps pls mark brainliest!

Answer:

Further the sun, the longer the shadow; true.

What is the answer to this question?

What is the answer to this question?

Answers

Answer:

Explanation:

In a velocity/time (aka acceleration) graph, the slope of a line indicates the value of the acceleration in m/s/s. Acceleration is the change in velocity over the change in time. From 0 - 2 seconds, there is no change in velocity, so the acceleration during this interval is 0 (which is the same as the slope of the line). From 2 - 4 seconds, the slope of the line is -2, so the acceleration during the time interval from 2 to 4 seconds is -2 (negative because David is slowing down but is still going the same direction: to the right).

the type of cartilage that can withstand the strongest compression and tension forces is

Answers

The type of cartilage that can withstand the strongest compression and tension forces is fibrocartilage.

Fibrocartilage is a type of cartilage that is found in areas of the body that are subjected to heavy loads and constant movement. It is made up of dense, fibrous tissue and is able to withstand strong compression and tension forces due to its unique structure.

Fibrocartilage is found in areas such as the intervertebral discs, pubic symphysis, and the knee joint. These areas are subjected to constant pressure and movement, and the fibrocartilage is able to absorb shock and distribute forces evenly. This helps to prevent damage to the surrounding tissues and ensures that the joint or area remains stable.

Fibrocartilage is also important in the healing process of certain injuries, such as a torn meniscus in the knee. When an injury occurs, the body will produce fibrocartilage to help repair the damaged tissue and stabilize the area.

In conclusion, fibrocartilage is the type of cartilage that is able to withstand the strongest compression and tension forces due to its dense, fibrous structure. It plays a crucial role in maintaining stability in areas of the body that are subjected to heavy loads and constant movement, and is also important in the healing process of certain injuries.

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How can one find the mechanical advantage of a pulley?

Answers

Answer:

To calculate the mechanical advantage of a pulley you simply have to count the number of rope sections that support whatever object you are lifting (not counting the rope that is attached to the effort)

Example:

For example, in a one pulley system the MA is 1. In a two pulley system the MA is 2. The more compound the pulley is the easier the load is to lift. If you were lifting a 600kg object with 2 pulleys you would have to use enough effort to pull 300kg to lift the 600kg object! Therefore your mechanical advantage would be 2 (600/300).

               MA= load/effort OR number of rope sections

Count the numbers and then support whatever you are lifting (object)

When the sun and moon work together ____________ are formed on Earth.

a
Frankentides
b
Neap Tides
c
Spring Tides
d
Dark Tides

Answers

Answer:

C. Spring Tides is the answer.

Identify the charges that are negative. mentum. . ​

Identify the charges that are negative. mentum. .

Answers

Answer:

Charges B and C are negative

Explanation:

• We are certain of a law of magnetism that states "Field lines move from positive charge to negative charge"

\({}\)

Answer:

B and C are negative.

Explanation:

This is because according to the law of charges in electric field line it says that the lines forming the electric field move from the positive terminal to the negative terminal,hence making B and C be negative as the lines are moving into them.

A football field is 52 yards wide by 112 yards long. What is the area

Answers

Answer:

5824 yards^2

Explanation:

area = length x width

area = 112 x 52

area = 5824

Answer:

5824 squared yards

Explanation:

A flower pot with a mass of 1.2 kg is sitting on a ninth story windowsill 30 meters above the ground. How many joules of energy does the flower pot have? Is the energy potential energy or kinetic energy?

Pt.2
USE THE QUESTION ABOVE: The owner of the flower pot gave it to a friend who lived on the second floor of the
apartment building. This person also put it on their windowsill which was 6 meters above the ground? Now how
much gravitational potential energy would the flower pot have now?

Answers

Answer:

(assuming gravity = 10m/s2)

answer for part 1 :

the pot will possess potential energy and not kinetic energy.

the energy which the pot possess is = PE of the pot

PE = mgh = 1.2x 10 x 30 = 360 J

answer for part 2 :

PE = mgh = 1.2 × 10 × 6 = 72 J

Explanation:

the PE of a body is not due to its state of motion, its due to the state of rest of the body. when the body starts moving it possess kinetic energy.

A
is the order in which things are arranged.
O plan
sequence
O process
O goal

Ais the order in which things are arranged.O plansequenceO processO goal

Answers

A sequence is the order in which things are arranged.

Answer:

sequence

Explanation:

sequences are the way in which things are ordered, for example: 1, 2, 3, 4 is a sequence:)

Describe the physical properties of stars and how they relate to the Hertsprung-Russell diagram.
write like 4 sentences

Answers

Answer:

Explanation:The Hertzsprung-Russell Diagram is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature and evolutionary stage. Stars in the stable phase of hydrogen burning lie along the Main Sequence according to their mass.

hoped this helped

a river flows toward the east at 1.5 m/s. steve can swim 2.2 m/s in still water. if he wishes to cross the river so that his direction is exactly northward, what direction relative to the water must he swim?

Answers

Steve must swim at an angle of 34.9 degrees north from the direction just across the river. This would cause him to be able to move north with a resultant velocity of about 2.66 m/s, allowing him to cross the river.

Steve has to take into account the current of the river and his swimming speed to cross it and move north. Vector addition can be used to obtain the required relative velocity. Let us examine the velocities in detail:

River velocity: 1.5 m/s to the east.

Steve's swimming speed: 2.2 m/s in still water.

Since he wants to move exactly due north, it is possible to determine the desired velocity, \(\rm V_d_e_s_i_r_e_d\), by adding these two speeds at right angles. The Pythagorean theorem can be applied in this situation to determine the size of \(\rm V_d_e_s_i_r_e_d\):

\(\rm V^2 _d_e_s_i_r_e_d\) = \(\rm (2.2 m/s)^2 + (1.5 m/s)^2\)

\(\rm V^2 _d_e_s_i_r_e_d\) = \(\rm 4.84 m^2/s^2 + 2.25 m^2/s^2\)

\(\rm V^2 _d_e_s_i_r_e_d\)= \(\rm 7.09 m^2/s^2\)

\(\rm V_d_e_s_i_r_e_d\) ≈ √7.09 m/s ≈ 2.66 m/s

For finding the angle θ between \(\rm V_d_e_s_i_r_e_d\) and Steve's swimming direction (northward), we can use trigonometry. The tangent of the angle θ is given by the ratio of the river velocity to Steve's swimming speed:

tan(θ) = River velocity / Steve's swimming speed

θ = arctan(1.5 m/s / 2.2 m/s)

θ ≈ 34.9 degrees

So Steve must swim at an angle of 34.9 degrees north from the direction just across the river. This would cause him to be able to move north with a resultant velocity of about 2.66 m/s, allowing him to cross the river.

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What do you think are the factors that might affect the magnitude of this angle

Answers

The bond angle in a compound is the angle formed between two bonds in the compound. It is affected by the geometry, electron cloud and the size of atoms.

What is bond angle ?

Bond angle is the distance between two chemical bonds in a compound. Bond angle is affected by the electrostatic force of repulsion and attraction. Hence, the presence of lone pairs and bond pair are the main factors affecting the bond angle.

If there are lone pairs, the repulsion between two  lone pairs is greater than that between a lone pair and bond pair which in turn greater than that between two bond pairs.

Hence, the electron clouds will align themselves to minimize the repulsion. Thus, the geometry and bond angle may vary from what we predicted based on hybridization.

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Your question is incomplete. But your complete question probably was:

What is bond angle? What do you think are the factors that might affect the magnitude of this angle?

A fully charged HV battery should show voltage levels to within ______% of specifications.

Answers

A fully charged HV battery should show voltage levels to within 3% of specifications.

A High Voltage (HV) Battery is an electric vehicle's most crucial component. HV batteries are responsible for propelling electric cars by producing power. As a result, a fully charged HV battery should display voltage levels to within 3% of the specifications to provide maximum performance and lifespan. The voltage levels of the HV battery are monitored by the Battery Management System (BMS) (BMS).The Battery Management System (BMS) (BMS) is the electric vehicle's computerized system that monitors the battery's performance, safeguards it against damage, and informs the driver of any system issues. The BMS uses voltage and current sensors to monitor the battery's state of charge and power output in real-time. The Battery Management System (BMS) calculates the battery's available power and energy and its state of charge based on the monitored data.The Voltage level of a battery shows the strength of the battery. If a battery's voltage level is low, it means that the battery is weak and will not last long. Therefore, a fully charged HV battery should show voltage levels to within 3% of specifications to provide the best performance and lifespan. Any deviation from this range will decrease the battery's overall performance and lifespan.

A fully charged HV battery should show voltage levels to within 3% of the specifications to provide maximum performance and lifespan. The Battery Management System (BMS) monitors the voltage levels of the battery to ensure that it is functioning correctly. If the battery's voltage level is below the specified range, it will impact the battery's overall performance and lifespan.

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Which type of wave is most affected by gravity from the Sun and the moon?

Answers

Answer:

A tidal is a type of wave is most affected by gravity from the sun and the moon.

Explanation:

I hope it helps ❤❤

Tidal wave is the type of wave which is most affected by gravity from the

Sun and the moon

The sun and the moon's gravitational pull results to the tidal force being

generated. The tidal force from the tidal wave generated has some effects

on the earth.

It causes the  Earth and its water content to bulge out on two sides of the

earth. It bulges in the area with the highest proximity to the moon and areas

with the lowest proximity. This is responsible for the formation of high tides

in  water bodies.

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Please help ASAP -multiple choice- will give brainliest

Please help ASAP -multiple choice- will give brainliest

Answers

Answer:

C. An article written by a scientist

Explanation:

Research-based original articles written by a scientist can act as a primary source of information. Textbooks, dictionaries and encyclopedias are generally classified as secondary sources and are rarely primary sources.

What is the value of a in the function’s equation?

A.
3
B.
-2
C.
2
D.
-3

Answers

Answer:

Explanation:

What is the value of a in the function's equation?

A. -2

B. -3

C. 3

D. 2

ANSWER: c.

Resistors of 5 ohms and 10 ohms are connected in series with a battery supplying 3 volts. What is the total resistance?​

Answers

The total resistance of the 5 ohm and 10 ohm resistors connected in series is 15 ohms.

Answer:

Therefore, the total resistance of the circuit is 15 ohms and the current flowing through the circuit is 0.2 amperes.

Explanation:

When resistors are connected in series, their resistances add up to give the total resistance of the circuit. So, in this case, the total resistance of the circuit is:

Total resistance = 5 ohms + 10 ohms = 15 ohms

Now that we know the total resistance of the circuit, we can use Ohm's law to calculate the current flowing through the circuit:

Current = Voltage / Resistance

where Voltage is the voltage of the battery and Resistance is the total resistance of the circuit.

Plugging in the values, we get:

Current = 3 volts / 15 ohms = 0.2 amperes

Therefore, the total resistance of the circuit is 15 ohms and the current flowing through the circuit is 0.2 amperes.

Please help I have to turn it in tomorrow

Please help I have to turn it in tomorrow

Answers

Answer:

i think the answer is a

Explanation:

hope i am right

Which types of light are absorbed by genetic material?
ultraviolet (UV)
visible
infrared (IR)
microwave F radio

Answers

Explanation:

the answerer is visible

Genetic material is known to absorb UV light. Given what we know, we can confirm that genetic material is not known to absorb light originating from an infrared or microwave radio source.

What light does genetic material absorb?

Genetic material is the hereditary substance in the cell. It carries all information specific to an organism. It is known as DNA (deoxyribonucleic acid) or RNA (ribonucleic acid)

UV light is electromagnetic radiation, and the primary source of UV light that we are exposed to is the sun.

Therefore, given that the only form of light listed that genetic material is known to absorb is that of Ultraviolet or UV light, we can confirm that the answer to the question proposed is infrared and microwave radio light.

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Multiple point perspective is a system of perspective in which __________________ a. there are a number of vanishing points, usually created by multiple objects. b. there are two vanishing points. c. all lines within the picture lead to a single vanishing point. d. all the sides are measured full size and scaled with the drawing at 30° to the horizontal. please select the best answer from the choices provided a b c d

Answers

Multiple point perspective is a system of perspective in which: A. there are a number of vanishing points, usually created by multiple objects.

What is multiple point perspective?

Multiple point perspective can be defined as a system of perspective in which each items (objects) has a number of interacting lines with different vanishing points.

This ultimately implies that, a multiple point perspective is a system of perspective which is created with a number of vanishing points, that are usually created by multiple objects.

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Answer:

A

Explanation:

A squirrel jumps into the air with a velocity of 7 m/s at an angle of 20 degrees. What is the maximum height reached by the squirrel?

Answers

Answer:

.3m

Explanation:

Apex

0.3 is right i just got it right on the test for A P E X :D

You are gardening in the peak of summer, it hasn't rained in a week, and your plants are looking rough. You decide to water the plants for an hour. The next day you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. With what you know from class, please try and explain what is happening to your plants.

Answers

In the peak of summer, it hasn't rained in a week, and the plants are looking rough, so watering the plants for an hour is a good idea.

However, the next day, you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. Plants absorb water through their roots. The root system of a plant is responsible for drawing water and nutrients from the soil. A plant's root system must be able to absorb water quickly in order for the plant to grow and thrive. When the soil around the root system is dry, the roots will stop growing and will not be able to absorb water.

It may even start to die. Watering plants during the peak of summer is important because it will help keep the soil moist and prevent the roots from drying out. However, watering a plant too much can be harmful. If a plant is overwatered, the water may not be able to penetrate the soil and reach the roots. Instead, it may just sit on top of the soil, causing the roots to rot and die. This can cause the plant to wilt and die.To summarize, if the soil around the plant is too dry, the roots may not be able to absorb the water you gave them, causing the plant to look worse than before. Conversely, overwatering can also be harmful because the water may not be able to penetrate the soil and reach the roots, causing the roots to rot and die.

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Question 3 of 10
Which image shows an example of the strong nuclear force in
action?
A.
B.
C.
D.

Question 3 of 10Which image shows an example of the strong nuclear force inaction?A.B.C.D.

Answers

Answer: The answer is B

Explanation:

There are 4 fundamental forces that hold matter together.

- Gravitational Force

- Electromagnetic Force

- Strong Nuclear Force

- Weak Nuclear Force

We have barely just scratched the info about nuclear forces but the reason why B is the answer to the question is that Strong nuclear force actually holds the protons and neutrons together in the nucleus of an atom, much like the picture in B.

Answer: B

Explanation:

Which of the following types of forces is NOT an active force.
A. Tensional Force
B. Applied Force
C. Gravitational Force
D. Friction Force

Answers

Answer: A.

Explanation: Because it is like when you rub your knees on a rug it is tensional so that would make it a not active force.

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Which of the following is associated with the short-term (acute) effects of a rise in plasma FFA's?- Decreased mitochondrial production of ATP- -cell apoptosis- Mitochondrial dysfunction- More insulin release by the cell Is the system of equations consistent and independent, consistent and dependent, or inconsistent?y=3x+4y=3x+3Select the correct answer from the drop-down menu. What is the volume, in cubic feet, of a rectangular prism with a height of 2 feet, awidth of 10 feet, and a length of 17 feet? 1. Write the following function using unit step functions and then find its Laplace transform: 0 an attacker passes data that deliberately overfills an area of memory that the application reserves to store the expected data. which vulnerability exploit resulted from the attacker's actions? Find the measure of the indicated angle to the nearest degree.A. 70B. 20C. 89D. 68 help please look at attached image Molting occurs during the gradual metamorphosis of an insect wheneverA. the nymph needs food.B. an egg hatches.C. its full-sized wings harden.D. the nymph outgrows its exoskeleton. the nurse teaches a group of nursing students about informed consent for medical treatment. the nurse includes teaching about informed consent involving minors. which statement is correct for the nurse to include in the teaching? Rash-away is an over-the-counter product for treating skin irritation. Unit price is $4, unit variable costs are $2, fixed costs are $2 million, and unit volume is 3 million units. The advertising manager has proposed increasing advertising spending by $250,000. What is the incremental break-even for the advertising proposal, in dollars? $4 million $125,000 $7 million$500,000 Why are most pots and pans that are used for cooking made out of metal? In three to five sentences, apply yourknowledge of conductivity and resistance to explain. Santo and Angelo are carpenters who make tables and chairs. In one month, Santo can make 3 tables or 7 chairs, while Angelo can make 5 tables or 9 chairs. The opportunity cost of a table for Angelo is chairs. (1 point) Let F = (5z + 5x3) 7 + (2y + 4z + 4 sin(y)) 7 + (5x + 4y + 2e7") k. (a) Find curl F. curl F = = = (b) What does your answer to part (a) tell you about SF d where C is the circle (x 5)2 + (y 30)2 = 1 in the xy-plane, oriented clockwise? ScF. dr = = (c) If C is any closed curve, what can you say about ScF.d? ScF. dr = = = (d) Now let C be the half circle (x 5)2 + (y 30)2 = 1 in the xy-plane with y > 30, traversed from (6,30) to (4, 30). Find ScF. d by using your result from (c) and considering C plus the line segment connecting the endpoints of C. Sc. dr = 2. If a 6.2A current flows through a 3.90 resistor, how much voltage is supplied?a. 20.18Vb. 1.58VC..18Vd. 24.18V Question 14 Multiple Choice Worth 2 points) If we have less power, we most likely haveA. the same amount of work being done over a shorter period of timeB.more work done over a shorter period of time C. more work done over the same amount of time D.the same amount of work being done over a longer period of time when assessing the rectum, the nurse observes what appear to be engorged areas near the rectal opening. the nurse would most likely document this finding as which of the following? Mary, Alex, Lou, and Michelle work as a group on a daily basis to make computer chips in a manufacturing plant. They are an example of a ____ team. products created for household or family use and intended for daily living are called: two identical satellites orbit the earth in stable orbits. one satellite orbits with a speed v at a distance r from the center of the earth. the second satellite travels at a speed that is less than v . at what distance from the center of the earth does the second satellite orbit? view available hint(s)for part a two identical satellites orbit the earth in stable orbits. one satellite orbits with a speed at a distance from the center of the earth. the second satellite travels at a speed that is less than . at what distance from the center of the earth does the second satellite orbit? at a distance that is less than r . at a distance equal to r . at a distance greater than r . Add or subtract the following polynomails(8x^4 + 6x^3 - 4x^2) - (3x^4 - 5x^2 - 7x 9)