If a baseball is thrown straight up into the air, when does it have its greatest amount of gravitational potential energy?

Explanation:

Take south to be negative.

a. Momentum is mass times velocity.

p = mv

p = (540 kg) (-6 m/s)

p = -3240 kg m/s

p = 3240 kg m/s south

b. Impulse = change in momentum

J = Δp

Since the mass is constant:

J = mΔv

J = (540 kg) (-4 m/s − (-6 m/s))

J = 1080 kg m/s

J = 1080 kg m/s north

Answer:

Thermal heat

Explanation:

The heat is transferred from your hand to the ice cube resulting in it melting.

Answer:

umm C i think

Explanation:

✔️0.5

✔️1

✔️2

✔️3

✔️5

--

i got it right on e2022.

Answer:

The answer is option 4.

Explanation:

Convection is the transfer of heat energy through liquid and gas.

Conduction is the transfer of heat energy through solid.

Radiation is the transfer of heat energy through gas(air).

Answer:

Arizona.

Explanation:

Petrified Forest National Park is an American national park in Navajo and Apache counties in northeastern Arizona. Named for its large deposits of petrified wood, the park covers about 346 square miles (900 square kilometers), encompassing semi-desert shrub steppe as well as highly eroded and colorful badlands.

Answer:

Polish it to shine

Explanation:

Answer:

Explanation:

FALSE

An elastic material like a rubber band or a spring definitely extends some resistance to its change.

However, in the case of non-elastic materials like hard plastic, the excess pressure results in the breakage of the material, whereas in the case of elastic materials, the excess pressure results in deformation of the shape.

Answer: D

Explanation: Its a type of white blood cell that moves by amoeboid

Answer:

Phenomenon

Explanation:

phe·nom·e·non

/fəˈnäməˌnän/

noun

1.

a fact or situation that is observed to exist or happen, especially one whose cause or explanation is in question:

"glaciers are unique and interesting natural phenomena"

synonyms

occurrence, event, happening, fact, situation, etc.

2.

a remarkable person, thing, or event:

"the band was a pop phenomenon just for their sales figures alone"

synonyms

marvel, sensation, wonder, prodigy, miracle, etc.

Answer:

carbon

Explanation:

Answer:

Page 1:

7: 1

9: 3

10: 4

Q2.1: alkaline

Q2.2: acidic

Q2.3: alkaline

Q2.4: acidic

Q2.5: 4

=====

Page 2:

1: 4

2: 1

=====

Page 3:

3: 1

4: 2

5: 4(?)

6: 1, 4

Explanation:

trust

UV rays are blocked by the different layers of atmosphere. The factors responsible for this blockage is the ozone layer in the top layer of atmosphere, water vapor, oxygen, and carbon dioxide molecules.

The Sun emits UV rays, but it is absorbed in the ozone layer of the atmosphere before reaching the earth. This results in the blockage of UV rays from the sun that does not affect people.

The factors responsible for this blockage is the ozone layer in the top layer of atmosphere, water vapor, oxygen, and carbon dioxide molecules.

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Regular Electrical Inspections: Schedule periodic inspections of your home's electrical system by a qualified electrician to identify any potential hazards or issues.

Ground Fault Circuit Interrupters (GFCIs): Install GFCIs in areas where water is present, such as kitchens, bathrooms, laundry rooms, and outdoor outlets. GFCIs detect imbalances in electrical currents and quickly cut off power to prevent electric shocks.

Arc Fault Circuit Interrupters (AFCIs): Use AFCIs to protect against arc faults, which can cause electrical fires. AFCIs detect dangerous electrical arcs and shut off power to prevent potential fires.

Electrical Overload Prevention: Avoid overloading electrical outlets by using power strips with built-in circuit breakers. Spread out high-wattage appliances across multiple outlets rather than using adapters or extension cords.

Proper Cord Usage: Inspect electrical cords regularly for damage, fraying, or loose connections. Replace damaged cords immediately. Avoid running cords under carpets or rugs, and don't pinch them behind furniture or doors.

Outlet Safety: Install tamper-resistant outlets to protect children from accidental electrical shocks. Cover unused outlets with safety caps or plugs.

Light Bulb Safety: Use the correct wattage light bulbs for fixtures to prevent overheating. Always turn off the power before changing light bulbs.

Electrical Appliance Safety: Unplug appliances when not in use and during electrical storms to protect them from power surges. Follow manufacturer's instructions for maintenance and usage.

Outdoor Safety: Use weatherproof electrical outlets and cover them with appropriate enclosures. Avoid using electrical tools or appliances in wet conditions unless they are specifically designed for outdoor use.

Education and Awareness: Educate your family members about electrical safety practices, such as not overloading outlets, avoiding water near electrical sources, and recognizing the signs of potential electrical hazards.

Answer: D. 5cm

Explanation:

Given the following :

Focal length (f) = - 6.0 cm

Height of object = 15.0cm

Distance of object from mirror (u) = 12.0cm

Height of image produced by the mirror =?

Firstly, we calculate the distance of the image from the mirror.

Using the mirror formula

1/f = 1/u + 1/v

1/v = 1/f - 1/u

1/v = 1/-6 - 1/12

1/v = - 1/6 - 1/12

1/v = (- 2 - 1) / 12

1/v = - 3 / 12

v = 12 / - 3

v = - 4

Using the relation :

(Image height / object height) = (- image distance / object distance)

Image height / 15 = - (-4) / 12

Image height / 15 = 4 / 12

Image height = (15 × 4) / 12

Image height = 60 / 12

Image height = 5cm

Answer:

D. 5 cm

Explanation:got it right

Answer:

Important: If you are playing on any other platform other than PC or Mac, you'll need to enable cross-play to play with friends on other platforms. This option is located under Settings --> Account --> Gameplay Privacy.

From the lobby, click on the main menu on the top left.

Click on Add Friends icon

Enter the Epic display name of your friend

Click on the Add Friend button.

You will receive a notification that the friend request has successfully been sent.

Once your friend request has been accepted you will see them in your friend list whether they're offline or online.

Answer:

39,200J

Explanation:

just took the test

The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J

Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.

mass(m)  = 10kg

g (acceleration due to gravity) = 9.8m/s^2

altitude(height (h)) = 400m

Meteor's Potential energy = m * g * h

                                           = 10 * 9.8 * 400 = 39200 J

correct option will be a) 39200 J

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Answer:

Pick two points on the line and determine their coordinates. Determine the difference in y-coordinates of these two points (rise). Determine the difference in x-coordinates for these two points (run). Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope). I cant help you unless I know what coordinates you are wanting to use.

Explanation:

But, we know the formula for slope is y = mx + b. I attached a picture that might be able to help you.

Answer:

No they cannot

Explanation:

A straight line going through the orign in a distance versus time graph would show that the object is going at a constant speed, meaning that the speed is not changing.

A straight line going through the origin in a speed versus time graph would show that the object is accelerating at a constant rate, or that it's speeding up/slowing down at a constant rate

It is true that if the line on a distance versus time graph and the line on a speed versus time graph are both straight lines going through the origin, then the two graphs can display the motion of the same object

Distance versus Time Graph: If the line on the distance versus time graph is a straight line, then the object's distance is proportional to the time. The object is traveling at a constant speed. The slope of this line shows the speed of the item.

Speed versus Time Graph: If the line on the speed versus time graph is likewise a straight line through the origin, the object's speed remains constant over time. The slope of this line denotes the object's acceleration.

Yes, if the line on a distance against a time graph and the line on a speed versus time graph are both straight lines through the origin, they can represent the motion of the same item.

Hence, it is true that if the line on a distance versus time graph and the line on a speed versus time graph are both straight lines going through the origin, then the two graphs can display the motion of the same object

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Answer: A

Explanation:The Pawn moves directly forward, never backward or to the side. Pawns capture a piece that is one square diagonally forward. Though Pawns normally cannot move diagonally, this is the only way they capture.

Based on the information provided, the best move to capture a hanging piece would be: A) Nxg3

Nxg3 would be the best move to capture a hanging piece.

This move involves sacrificing the knight to capture the hanging piece, which could be a bishop or pawn, depending on the position of pieces. After Nxg3, the opponent may capture the knight with different piece, but the player who made the move will have successfully captured the hanging piece.

However, it's important to note that the best move ultimately depends on the overall strategy of the player and the position of the other pieces on the board.

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Answer:

A

Explanation:

Answer:

Air

Explanation:

Answer:

Air

Explanation:

Darker colors absorb heat, While lighter colors don't. If a house is painted black in Arizona, The black color will absorb the heat making the temperature inside the house very hot even with the AC on. If a house in Arizona is painted White, The heat will bounce off the White color, making the temperature inside the house cooler.

Hope this helps!

Answer:

Have you ever noticed people working outside in the hot sun and how you never really see them wearing black shirts or pants.  This is because dark colors absorb heat, however light colors, such as white, do the exact opposite.  Instead of absorbing the heat from the light,  light colors reflect it. So people usually paint there houses lighter colors in hot places to keep their there houses from absorbing heat so it does not cost them so much on electricity bills for air conditioning.

Answer: if the heat energy is wasted, then, energy is lost forever.

Explanation: According to conservative of energy, which state that energy is neither created nor destroyed but only convert from one form to another.

The energy which should have been used in one form has been converted to heat energy which could have been used for for thing or the other, if there is nothing the heat energy can be used for, then the energy is wasted. This is tantamount to being lost forever.

Answer:

True

Explanation:

Thats the answer on Apex

Mass(M)=15 kg

Acceleration(A)=4 m/s2

Force=?

Now,

Force(F)=M×A

F=15×4

F=60N Ans

Answer: three small bones in the middle ear

Explanation: Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum. The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear. These bones are called the malleus, incus, and stapes.

When sound waves cause the eardrum to vibrate, these vibrations are immediately passed on to the three small bones in the middle ear. So, the correct option is C.

A sound wave is defined as a pattern of disturbance that is caused by the movement of energy that travels through a medium such as air, water or any other liquid or solid substance as it propagates away from the source of the sound which is the object made by vibration and pressure generate waves, for example, a ringing cellphone.

These waves enter the outer ear and pass through a narrow passage called the ear canal leading to the eardrum which vibrates with the incoming sound waves and sends these vibrations to three small bones in the middle ear where these bones are called malleus, incus. and steppes.

Thus, the correct option is C.

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Answer#2:

When mixed, acids and bases neutralize one another and produce salts, substances with a salty taste and none of the characteristic properties of either acids or bases.

Explanation:

Answer#1

Acids give off H+ (Hydrogen) ions in water; bases give off OH- (Hydroxide) ions in water. Acids generally taste sour due to the sour H+ ion; bases taste bitter due to the OH- ion; but they may have other tastes depending on the other part of the molecule. ... Acids have a pH less than 7 ; Bases have a pH greater than 7.

Answer:

A: crest

C: trough

B: wavelength

please give brainlist if it helps!!

Answer:

A: Wavelength

B: Trough

Crest

Explanation: