Chemical potential energy can be released into
energy
OA) heat
OB) elastic
OC) potential​

The work done on the Puck by the applied force from the most positive to the most negative is c, b, a respectively.

According to Newton's second law of motion, the force applied to an object is directly proportional to the product of mass and acceleration of the object.

F = ma

\(F= \frac{mv}{t}\)

The force applied to an object increases with increases in the velocity of the object.

In the given diagram, the resultant velocity of the puck is calculated as follows;

Figure a:

\(\Delta v = v_f -v_i\\\\\Delta v = 5 - 6 = - 1 \ m/s\)

Figure b:

\(v = \sqrt{4^2 + 3^2} \\\\v = 5 \ m/s\)

Figure c:

\(\Delta v = 4 - (-2)\\\\\Delta v = 6 \ m/s\)

Thus, the work done on the Puck by the applied force from the most positive to the most negative is c, b, a respectively.

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The maximum Current is 19.57 ohm, as mentioned inside the paragraph preceding.

A circuit in electronics is a totally circular path that electricity passes through. A current source, wires, and a load are the components of a basic circuit. Any ongoing channel for the conveyance of energy, info, or a signal is referred to as a "circuit" in a wide sense.

Voltage across the left 10 ohm resistance is V = IR = 0.92A * 10 ohm = 9.2 V

Thus this is the voltage across the 15 ohm and R

Therefore the current in the 15 ohm = 9.2/15 = 0.61 A

Kirchoff's current law states that current in = current out

So, from the 10 ohm & 15 ohm resistors, 2A is entering, while 0.92 + 0.61 are exiting.

Let current from R resistance is I₁

So, 2A = 0.92 + 0.61 + I₁

I₁ = 0.47A

For Resistance R,

V = I₁R

R = V/I₁ = 9.2/0.47

R = 19.57 ohm

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Answer: Neap tides

Explanation: Neap tides are tides that have the smallest tidal range, and they occur when the Earth the Moon, and the Sun form a 90o angle. They occur exactly halfway between the spring tides when the Moon is at first or last quarter.

Answer:

110.16N

Explanation:

you multiply 68 with 1.62

The gravitational potential energy of the bike racer after climbing a 1500 m long road at 4.3 degrees is 83,851.7 Joules.

To calculate the change in gravitational potential energy during the climb, we can use the formula:

Gravitational Potential Energy (GPE) = m * g * h

Where:
m = mass (76 kg)
g = gravitational acceleration (approximately 9.81 m/s²)
h = vertical height gained

First, we need to find the vertical height gained (h). We can use trigonometry to do this. Since we have the length of the road (1500 m) and the slope (4.3°), we can find the height using the sine function:

sin(slope) = height / length

height = sin(4.3°) * 1500 m

Now, let's calculate the height:

height = 0.0749 * 1500
height = 112.46 m

Now that we have the height, we can calculate the change in gravitational potential energy:

GPE = 76 kg * 9.81 m/s² * 112.46 m
GPE = 83851.7 J (Joules)

The gravitational potential energy changes by 83,851.7 Joules during the climb.

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The gravitational potential energy of the bike racer after climbing a 1500 m long road at 4.3 degrees is 83,851.7 Joules.

To calculate the change in gravitational potential energy during the climb, we can use the formula:

Gravitational Potential Energy (GPE) = m * g * h

Where:
m = mass (76 kg)
g = gravitational acceleration (approximately 9.81 m/s²)
h = vertical height gained

First, we need to find the vertical height gained (h). We can use trigonometry to do this. Since we have the length of the road (1500 m) and the slope (4.3°), we can find the height using the sine function:

sin(slope) = height / length

height = sin(4.3°) * 1500 m

Now, let's calculate the height:

height = 0.0749 * 1500
height = 112.46 m

Now that we have the height, we can calculate the change in gravitational potential energy:

GPE = 76 kg * 9.81 m/s² * 112.46 m
GPE = 83851.7 J (Joules)

The gravitational potential energy changes by 83,851.7 Joules during the climb.

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The difference between heat pumps and refrigerators lies in their intended purpose and the direction of heat transfer. A heat pump is used to maintain a heated space at a high temperature, while a refrigerator is designed to keep a refrigerated space at a low temperature by removing heat. The key distinction is that the working fluid in a heat pump moves in the opposite direction compared to a refrigerator. Additionally, a heat pump transfers heat from a high temperature area to a low temperature area, while a refrigerator does the opposite by moving heat from a low temperature area to a high temperature area.

Heat pumps and refrigerators share similar components, but their fundamental purpose and heat transfer direction differentiate them. A heat pump is primarily used for heating purposes, maintaining a heated space at a high temperature. It achieves this by extracting heat from a low-temperature source (such as outdoor air, ground, or water) and transferring it to a higher-temperature area (such as a building's interior). The working fluid in a heat pump, usually a refrigerant, circulates through a closed loop and undergoes a thermodynamic cycle. It evaporates at a low-pressure, low-temperature state in an evaporator coil, absorbing heat from the surroundings. The refrigerant is then compressed, raising its temperature and pressure. In the condenser coil, the refrigerant releases the absorbed heat to the heated space, while it condenses back into a liquid state. The cycle continues as the liquid refrigerant expands through an expansion valve, reducing its temperature and pressure, and returning to the evaporator to repeat the process.

On the other hand, a refrigerator is designed for cooling purposes, maintaining a refrigerated space at a low temperature. It operates by removing heat from the refrigerated area and transferring it to a higher-temperature location. Similar to a heat pump, a refrigerant circulates in a closed loop, but the direction of heat transfer is reversed. The working fluid begins in the evaporator coil inside the refrigerator, where it evaporates at low pressure and low temperature. During this process, it absorbs heat from the refrigerated space, causing the interior to cool down. The refrigerant then flows to the compressor, where it gets compressed, raising its temperature and pressure. In the condenser coil located outside the refrigerator, the refrigerant releases the absorbed heat to the surrounding environment, while it condenses back into a liquid state. The cycle repeats as the liquid refrigerant passes through an expansion valve, lowering its temperature and pressure, and returning to the evaporator.

In summary, the key differences between heat pumps and refrigerators lie in their purpose and the direction of heat transfer. Heat pumps are used for heating and move heat from low-temperature areas to high-temperature areas, while refrigerators are designed for cooling and move heat from low-temperature areas to high-temperature areas. Despite sharing similar components, the working fluid in a heat pump moves in the opposite direction compared to a refrigerator.

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Just before an Olympic diver hits the water all her potential energy converts into kinetic energy.

Law of conservation of energy states that the total energy of a system remains conserved.

Total mechanical energy = Kinetic energy + Potential energy = Constant.

Thus, the sum of potential energy and kinetic energy for the diver must be constant. So just before she hits the water all her potential energy converts into kinetic energy.

Therefore, just before an Olympic diver hits the water all her potential energy converts into kinetic energy.

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Answer: True

Explanation:

It should be noted that when refrigerant is added in vapor form to the operating refrigeration system, then the addition of the refrigerant should be to the low-pressure side of the refrigeration system.

Furthermore, when system pressures are lower than the pressure in the refrigerant tank as stated in the question, then the refrigerant can be added to both the high and low pressure sides of the system.

Therefore, the correct option is true.

Answer:

it's 13

Explanation:

10times6 plus 8 = 13

Answer:

Potential energy  800 J

Explanation:

Given:

M = 10 kg

h = 8 m

g = 10 m/s²

____________

W - ?

Potential energy:

W = M·g·h

W = 10·10·8 = 800 J

Answer:

Hi Emily, I know you from school.

Explanation:

You're in my class. 2024 am i right

Overcurrent refers to a sudden and rapid increase in current over a short period of time (also known as a short circuit or ground fault) (fractions of a second).

Fuse or circuit breakers are used to safeguard equipment and circuits from overcurrent conditions.

The current value is much higher than the nominal line current and can range from six times to hundreds of times higher than the typical rated current value.

Thermal energy: High current levels generate a lot of heat, which can harm cables and equipment. I2t (current squared times time) can be used to express thermal energy;

Mechanical forces: Busbars and other equipment may become warped or experience other issues due to the high-fault currents' ability to produce strong magnetic fields.

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Answer:

Im not sure if you're asking for a activity or what, but if you are here is one:

Basically, stand infront of a mirror, and then slowly back off, you'll see that not only the image in mirror is moving just like you, but the image also appears to be moving the same distance behind the mirror as you're infront of it.

Answer:

lower hill would have more kinetic energy

Answer #1:

Physical.

Explanation:

The only thing mentioned to change is the color. Nothing about the gas in general is changing

Answer #2:

Chemical.

Explanation:

The fact this interacted with another element to completely turn something else rather than just being that color makes this a chemical change.

Answer #3:

Physical

Explanation:

Well, how does an element's density have to do anything with a chemical change?

Answer #4:

Chemical.

Explanation:

Fire/heat is involved, and it makes it change states.

Answer: The Energy Change

Explanation: change for a chemical reaction can either be exothermic if it gives off heat or endothermic if it requires heat to proceed.  in a chemical reaction is due to the difference in the amounts of stored chemical energy between the products and the reactants. This stored chemical energy, or heat content, of the system is known as its enthalpy. energy changes that occur during a chemical reaction can be shown in a diagram called a potential energy diagram, or sometimes called a reaction progress curve. A potential energy diagram shows the change in potential energy of a system as reactants are converted into products.

The magnetic flux through the coil is given by:

Φ = BAcosθ

where B is the magnetic field, A is the area of the coil, and θ is the angle between the magnetic field and the normal to the plane of the coil. Since the axis of the coil is parallel to the field, θ = 0 and the equation simplifies to:

Φ = BA

The rate of change of magnetic flux is given by:

dΦ/dt = d(BA)/dt = A(dB/dt)

Plugging in the given values, we get:

A = πr^2 = π(1.0 cm)^2 = 3.14 × 10^-4 m^2

dB/dt = (0.30 T - 0.00 T)/(20 ms) = 1.5 × 10^4 T/s

Therefore, the emf induced in the coil is:

emf = -N(dΦ/dt) = -500 × 3.14 × 10^-4 m^2 × 1.5 × 10^4 T/s = -0.235 V

Note that the negative sign indicates that the emf is induced in a direction that opposes the change in magnetic flux.

Answer:

SImple machine:A machine with few or no moving parts that is used to make work easier.

Example: Wedge, inclined plane, screw, etc.

Complex machine: A machine that is a combination of two or more simple machines.

Example: Car, refrigerator, sewing machine, etc.

Explanation:

Answer:

a simple machine is a machine with few or no moving parts that is used to make work easier, such as a wedge or screw. a complex machine is a combination of two or more simple machines, such as a car, sewing machine or refrigerator.

Explanation:

Answer:

Good one

Explanation:

Hydrogen has the highest thermal conductivity of any gas.

Answer:

Smoke detectors

Explanation:

This is because the ionization chamber in smoke detectors uses radiation, a form of heat transfer to detect smoke.

.The NRC allows beneficial use of smoke detectors which is a radioactive material because a smoke detector has the ability to save lives . it's ability to save lives outweighs any health risk from the radiation. The smoke detector use a very minimal amounts of radioactive materials.

Answer: The household item which uses radiation in a beneficial way is the SMOKE DETECTORS

Explanation:

Radiation is a type of energy that has the ability to travel through space and penetrate materials. There are various types of radiation which include alpha, beta and gamma rays. Many uses of radiation help to ensure high quality and safety of our daily lives. A typical example is seen in smoke detectors.

Smoke detectors are devices installed in a building which serves the purpose of detecting smoke which usually is associated with fire and sounding off an alarm. The types of smoke detectors available depends on their mode of action and these include:

--> Ionization smoke detectors: These type of detector are generally more sensitive to flamming fires. They have an in built small amount of RADIOACTIVE material between two electrically charged plates, which ionizes the air and causes current to flow between the plates. When smoke enters the chamber, it disrupts the flow of ions, thus reducing the flow of current and activating the alarm. An isotope of americium which emits alpha particles is used in this type of smoke detectors and it's an example of an alpha radiation.

Therefore, the household item which uses radiation in a beneficial way is the SMOKE DETECTORS.

Answer: Tech B says that total amperage goes up as more parallel paths are added. Who is correct

Explanation: Tech B is correct, because amperage has been known to go up through when more parallel paths are added to a circuit. this is so because when more resistors are introduced in parallel to a circuit, the resulting  resistance of the circuit would decrease, this increases the total current of the circuit. as a result, when more resistors are added in parallel what you get is a change in the direction of flow which is equal to providing more branches which charge can flow through.

Answer:Explanation:

Protons and neutrons have very similar mass, while electrons are far lighter, approximately 11800 times the mass. Protons are positively charged, neutrons have no electric charge, electrons are negatively charged. The size of the charges is the same, the sign is opposite.

Given the resistors:

10Ω, 15 Ω and 20 Ω

Two resistors are connected in parallel and one in series.

Let's calculate all the possible total resistance values.

When resistors are connected in parallel, the equivalent resistance is:

After finding the equivalent resistance value in parellel, we now add the resistance value with the resistance in series:

• When 10Ω and 15Ω are connected in parallel and 20Ω in series, we have:

R1 = 10 Ω

R2 = 15 Ω

R3 = 20 Ω

When 10Ω and 15Ω are connected in parallel and 20Ω in series the total resistance is 26 Ω.

• When 10Ω and 20Ω are connected in parallel and 15Ω in series, we have:

R1 = 10 Ω

R2 = 20 Ω

R3 = 15 Ω

Hence, we have:

When 10Ω and 20Ω are connected in parallel and 15Ω in series the total resistance is 21.7 Ω.

• When 20Ω and 15Ω are connected in parallel and 10Ω in series, we have:

R1 = 20 Ω

R2 = 15 Ω

R3 = 10 Ω

Thus, we have:

When 20Ω and 15Ω are connected in parallel and 10Ω in series the total resistance is 18.6Ω.

ANSWER:

• When 10Ω and 15Ω are connected in parallel and 20Ω in series the total resistance is 26 Ω.

• When 10Ω and 20Ω are connected in parallel and 15Ω in series the total resistance is 21.7 Ω.

• When 20Ω and 15Ω are connected in parallel and 10Ω in series the total resistance is 18.6Ω.

When a particle of mass m moves at speed v, its linear momentum is defined as... In a block of wood (m = 5.00 kg), a 10.0g bullet comes to a stop.

The projectile penetrates the block. Following the collision, the bullet and wood combination is moving at a speed of 0.600 m/s.

The momentum of the block with the bullet after the hit will be equal to the momentum of the block with the bullet before the hit, per the law of conservation of linear momentum.

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The correct statements of an electric field are: (a) Its electric potential energy increases as it goes from high to low potential. (d) Its kinetic energy decreases as it moves in the direction of the electric field.

(a) When an electron moves from a region of high electric potential to a region of low electric potential, its electric potential energy increases. This is because the electron experiences a change in potential energy due to the electric field. Moving in the direction of the electric field, the electron gains potential energy. (d) As the electron moves in the direction of the electric field, its kinetic energy decreases. This is because the electric field does work on the electron, converting its kinetic energy into potential energy. The electron loses kinetic energy as it accelerates in the direction of the field. (c) and (e) are incorrect statements. The potential energy and kinetic energy of the electron are not directly related in this context. While the electron's potential energy may change, its kinetic energy does not necessarily follow a predictable pattern solely based on the direction of the electric field.

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Using the Standard population for region, the proportionate mortality for old people in region Y is 80%. The correct answer is option  (c).

To calculate the proportionate mortality, we need to determine the number of deaths among old people in region Y and divide it by the standard population for region Y.

According to the given options, option c is the correct answer, which states that the proportionate mortality is 48/60 = 80%.

This means that out of the standard population of 60 in region Y, 48 deaths occurred among old people. This indicates a high proportionate mortality rate for the elderly population in region Y, reflecting the impact on that age group's mortality in the region.

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The smallest aperture (diameter) telescope that will just resolve the two stars is 5 cm.

The angular resolution (minimum resolvable angle) of a telescope can be calculated using the Rayleigh criterion, which states that two objects can be just resolved when the center of the diffraction pattern of one is directly over the first minimum of the diffraction pattern of the other. The formula for the angular resolution is:

where θ is the angular resolution, λ is the wavelength of light, and D is the diameter of the aperture (telescope).

Substituting the given values, we get:

The angular separation between the stars is given as 10-5 radians. To resolve the stars, the angular resolution of the telescope must be equal to or smaller than this value. Therefore:

Therefore, the smallest aperture (diameter) telescope that will just resolve the two stars is 5 cm.

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