The label on a battery powered radio recommends the use of a rechargeable nickel-cadmium cell (nicads), although it has a 1.25-V open-circuit voltage, whereas an alkaline cell has a 1.58-V open-circuit voltage. The radio has a 3.2 Ω. resistance. a. With a nicad cell, having an internal resistance of 0.04Ω, what is the voltage supplied to the radio, if a single nicad cell is used? The voltage supplied to the radio is_____V. b. With an alkaline cell, having an internal resistance of 0.2Ω , what is the voltage supplied to the radio, if a single alkaline cell is used? The voltage supplied to the radio is_____ V. c. The radio's effective resistance is lowered when its volume is turned up. At what value of radio's resistance does a nicad cell begin to supply a greater voltage to the radio than an alkaline cell?When the radio has an effective resistance of _______ Ω or smaller, greater voltage can be obtained with a nicad cell.

Answer:

  96 m

Explanation:

The average velocity over those 4 seconds is the velocity after 2 seconds:

  30 m/s -(2 s)(3.0 m/s^2) = 24 m/s

The displacement is the product of this average velocity and the duration of the acceleration:

  d = (24 m/s)(4 s) = 96 m

The boat covered 96 m while being accelerated.

Answer:

It is an educated guess

Explanation:

let me know if the bottom ones need to be answered too.

Answer:

electric cars

Explanation:

although electric cars are more expensive, you will save money on rhe gass bill because you won't need to pay for gas. they also make less harmful toxins for the earth

A spectrum is a tool used in the photosynthesis lab to carry out a specific experiment.

Consequently, a spectrum is a tool that is utilized in the photosynthesis lab to carry out a particular investigation.

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Storm signal number 1 is a form of weather caution issued via the Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA) to alert the public to the opportunity of a tropical cyclone entering the USA.

When a storm sign number 1 is raised, it method that a tropical cyclone, along with a tropical despair or tropical hurricane, is expected to affect a particular region within the next 36 hours.

The winds related to the cyclone aren't yet strong sufficient to cause widespread harm, but they may be sufficient to disrupt transportation and different outside sports.

Throughout storm sign number 1, the general public is cautioned to be vigilant and take precautions, which include securing loose items and staying indoors if feasible.

Fishermen are recommended to keep away from going out to sea, and small vessels are cautioned to take refuge. PAGASA issues hurricane signal warnings up to a wide variety of five, with better numbers indicating more intense climate situations.

The warnings are a crucial tool for helping the general public to put together for and stay safe throughout tropical cyclones, which could reason extensive damage and loss of life within the Philippines.

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At the equilibrium position in SHM, the acceleration of the mass is zero, the speed is at a maximum, and the potential energy is zero. Option C is correct choice.

In simple harmonic motion (SHM), a mass attached to a spring oscillates back and forth around its equilibrium position. At the equilibrium position, the displacement of the mass from its equilibrium position is zero, and the restoring force of the spring is also zero. This means that the mass does not experience any net force at this point, and thus its acceleration is zero.

At the equilibrium position, the mass has maximum speed because it has been accelerated towards the equilibrium position by the restoring force of the spring, and then decelerated by the same force as it passes through the equilibrium position. At this point, all of the potential energy stored in the spring has been converted into kinetic energy. Therefore, the kinetic energy of the mass is a maximum, and the potential energy is zero. Option c is  correct choice.

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Answer:

The boiling point on top of a mountain would be lower than at sea level because the altitude would be higher and air pressure would decrease.

As the height increases, because most of the air molecules are held near to the surface and hence pressure by gaseous substance will be lower at higher altitudes results in lowering boiling point also.

Boiling point of a substance is the temperature at which the substance changes from the liquid state to vapor state where both  phases are in equilibrium and the pressure of vapor phase above the liquid phase will be equal to the atmospheric pressure.

The boiling point is dependent on the bond type, molecular weight, temperature and pressure. At higher altitudes, the pressure will be reduced due to the less denser air.

The volume of gas molecules is higher on elevation and thus, a decreased pressure causes, the water molecules easily boil with weekend intermolecular force thus, boiling point at mountain will be less than that at sea level.

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Answer:

An object is considered to be accelerating if the object is changing its rate in speed, decreases in speed, or changes the object's direction

The planet with an axis that points roughly straight up and thus has no seasons to speak of is Uranus. This unique orientation of Uranus' axis causes its poles to receive almost the same amount of sunlight all year round, resulting in a lack of seasonal variation.

While all the giant planets experience some level of seasonal changes, Uranus stands out as having the most extreme lack of seasonal variation due to its axial tilt.

It's important to note that the other giant planets (Jupiter, Saturn, and Neptune) all have dramatically different seasons due to their axial tilts, which are not as extreme as Uranus'. Jupiter and Saturn have noticeable seasons, but they are less dramatic than those experienced on Earth. Neptune also has seasonal variations, but due to its great distance from the Sun, these changes are less pronounced than those on Uranus.

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The total mechanical energy of the bicyclist is 1400 J, obtained by adding her potential energy of 720 J and kinetic energy of 680 J. The correct answer is option B.

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Answer:

8.158 Kilograms Force

Explanation:

Answer:

8.1577297038

Explanation:

pls give brainlest

The language of the given pushdown automaton (PDA) can be described as follows:

The PDA has a stack alphabet consisting of symbols 'a', 'b', 'z', '6', '1', '۸', '2', '9', '0', 'x', 'y'. 'z' represents the stack end symbol.

The transitions of the pushdown automaton (PDA) are as follows:

Thus, the language accepted by this PDA is characterized by a sequence of 'a's followed by a sequence of 'b's, where the number of 'b's is three times the number of 'a's, and each 'b' is followed by a corresponding sequence of '90', '91', '92', 'a', 'b', 'b', 'b', '1', 'b', 'b', '1', and ending with '1'.

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Answer:

b. heat

Explanation:

Laser light has a great deal of heat energy. The correct option is B.

A laser is a device that emits light via an optical amplification process that is based on the stimulated emission of electromagnetic radiation. Light amplification by stimulated emission of radiation is an acronym for the term.

A laser generates a very narrow beam of light that can be used in a variety of technologies and instruments. Laser is an acronym that stands for Light Amplification by Stimulated Emission of Radiation.

The radiation coming from the laser light has a large amount of heat due to the presence of the electrons streamed in the form of an electromagnetic wave.

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The current through the 2Ω resistor is 9.5A

The terminal voltage is 10.8 V

a) The voltage V across 8 Ω resistor is V = I*R = 8*0.5 = 4V

the current through 16Ω resistor is then I = V/R = 4/16 = 0.25 A

the current through 20Ω resistor is then I = current through 8Ω resistor + current through 16Ω resistor = 0.75 A

voltage across 20Ω is V = I*R = 0.75*20 = 15 V

the source voltage is Vs = V8 + V20 = 4+15 = 19 V

therefore the current through 2Ω resistor is

I = V/R = 19/2 = 9.5 A

b) The terminal voltage is

Vterminal = VR = I*R = 0.450*24 = 10.8 V

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Answer:

solar eclipse

Explanation:

because at that time, the moon completely covers the path and casts its shadow on earth because it is present between sun and earth's path. so, solar eclipse occurs.

hope it helps :)

Answer:solar eclipse

Explanation:

Top one is right <3

Answer:

i got u

Explanation:

To find the time taken to cover a distance of 180 km with velocity magnitude 20 m/sec, we can use the formula:

time = distance / velocity

Converting the distance to meters, we get:

180 km = 180,000 m

Plugging in the values, we get:

time = 180,000 m / 20 m/sec

Simplifying, we get:

time = 9,000 seconds

Therefore, the time taken to cover a distance of 180 km with velocity magnitude 20 m/sec is 9,000 seconds.

About 41.25% of the initial kinetic energy of the ball was lost during the collision. Since the collision is elastic, the total mechanical energy (kinetic plus potential) of the ball-floor system is conserved.

When the rubber ball hits the floor, it undergoes an elastic collision with the floor, where some of the kinetic energy of the ball is lost due to various dissipative processes such as friction, sound, and deformation of the ball. However, since the collision is elastic, the total mechanical energy (kinetic plus potential) of the ball-floor system is conserved.

Let's denote the initial speed of the ball as v1 = 8.0 m/s and the rebound height as h = 0.25 m. We can use the conservation of mechanical energy to find the final speed of the ball, v2, just as it leaves the floor:

Initial kinetic energy of the ball = 1/2 mv1^2

Final potential energy of the ball at maximum height = mgh

Final kinetic energy of the ball just as it leaves the floor = 1/2 mv2^2

Since mechanical energy is conserved, we can write:

1/2 mv1^2 = mgh + 1/2 mv2^2

Simplifying, we get:

v2 = sqrt(v1^2 - 2gh)

Plugging in the values, we get:

v2 = sqrt((8.0 m/s)^2 - 2(9.81 m/s^2)(0.25 m))

v2 = 5.06 m/s

The change in kinetic energy of the ball during the collision is given by:

delta_K = 1/2 m v1^2 - 1/2 m v2^2

Substituting the values, we get:

delta_K = 1/2 (m) (8.0 m/s)^2 - 1/2 (m) (5.06 m/s)^2

delta_K = 0.5m(39.2 - 12.8)

delta_K = 13.2 m

Thus, the fraction of the initial kinetic energy lost during the collision is:

fraction lost = delta_K / (1/2 mv1^2)

Substituting the values, we get:

fraction lost = (13.2 J) / (1/2 m(8.0 m/s)^2)

fraction lost = 0.4125

Therefore, about 41.25% of the initial kinetic energy of the ball was lost during the collision.

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The government can address the environmental damage caused by thrown-away plastic water bottles through solutions such as implementing a deposit and return system or imposing taxes, which incentivize responsible behavior, reduce plastic waste, and mitigate negative externalities.

a. The economic concept that explains the damage created by thrown-away empty plastic water bottles is "negative externality."

b. Negative externality occurs when the production or consumption of a good or service imposes costs on third parties who are not involved in the transaction. In this case, the irresponsible disposal of plastic water bottles creates environmental damage, such as pollution in landfills and oceans, affecting society as a whole. It is a market failure because the private cost of producing and consuming bottled water does not include the full social cost of the resulting environmental damage.

The market situation in this context involves a divergence between private and social costs. Consumers of bottled water do not bear the full cost of the environmental damage caused by the improper disposal of plastic bottles. Consequently, the market equilibrium for bottled water fails to account for the negative externalities imposed on society.

c. Two solutions available to the government to correct this environmental issue are:

Implementing a plastic bottle deposit and return system: The government can establish a system where consumers pay an additional deposit fee when purchasing plastic water bottles, which is refunded when they return the empty bottles to designated collection points. This incentivizes consumers to return the bottles for recycling or proper disposal, reducing environmental damage.

Imposing taxes or levies on plastic water bottles: The government can impose taxes or levies on the production or consumption of plastic water bottles. This increases the cost of bottled water, reflecting the social cost of environmental damage. The additional revenue generated from these taxes can be used to fund environmental conservation and recycling programs.

d. These solutions will correct the given situation by internalizing the external costs associated with plastic water bottle consumption. By implementing a deposit and return system or imposing taxes, consumers are incentivized to act responsibly by returning the bottles or opting for alternative packaging options. This reduces the amount of plastic waste in landfills and oceans, mitigating environmental damage.

The deposit and return system encourages recycling and reuse of plastic bottles, reducing the need for new bottle production and decreasing overall plastic waste. The taxes or levies increase the price of bottled water, making alternatives like reusable bottles or tap water more economically attractive. The revenue generated from these taxes can be utilized for environmental initiatives such as recycling infrastructure, public awareness campaigns, and research and development of sustainable packaging materials.

Therefore, by internalizing the negative externalities associated with plastic water bottle consumption, these solutions promote responsible behavior, reduce plastic waste, and mitigate the environmental damage caused by improper disposal.

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To move a 1000 N object using a machine that allows a 100 N force, you would need to apply a larger input distance. This means option (a) is the correct answer.

The machine operates based on the concept of work, which is the product of force and distance. In this case, the machine allows you to apply a force of 100 N. To move the 1000 N object, you need to perform work on it.

The work done is given by the equation\(W = F * d\), where W is the work done, F is the applied force, and d is the distance over which the force is applied.

If the force applied by the machine is fixed at 100 N, and the object has a weight of 1000 N, you need to increase the input distance (d) to perform the necessary work done to move the object. By applying the force over a larger distance, you can achieve the required work to move the 1000 N object. Therefore, option (a) is the correct choice.

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The Complete question is

Select the answer, If a machine allows you to apply a 100 N force to move a 1000 N object, you have to

a) Put a larger input DISTANCE in

b) Put a larger input FORCE in

c) put a larger output Distance in​

Answer:

Frequency

Wavelength and frequency are both properties of waves and are related to one another.

Answer:

Hey mate....

Explanation:

This is ur answer.....

There are 2 definitions :-

Hope it helps!

Brainliest pls!

Follow me! :)

Answer:

jgfsdghjjuk

Explanation:

khhnghjj

Answer:

x = - 8 atau 3

Explanation:

3ˣ² × 3⁵ˣ = 3²⁴

Penarikan:

Mᵃ × Mᵇ = Mᵃ⁺ᵇ

3ˣ² × 3⁵ˣ = 3ˣ²⁺⁵ˣ

Karena itu

3ˣ² × 3⁵ˣ = 3²⁴

3ˣ²⁺⁵ˣ = 3²⁴

x² + 5x = 24

Mengatur kembali

x² + 5x - 24 = 0

Pemecahan dengan faktorisasi

x² - 3x + 8x - 24 = 0

x (x - 3) + 8 (x - 3) = 0

(x + 8) (x - 3) = 0

x + 8 = 0 atau x - 3 = 0

x = - 8 atau x = 3

Karena itu,

x = - 8 atau 3

X and Y are two things that travel in the same direction. The mass of the things is the same. 5.0 m/s is the velocity of object x as it moves to the right. The velocity of object y to the left is 3.0 m/s. Objects x and y collide and adhere to one another. Following their collision, they both move at a speed of 1.0 m/s to the right.

Their velocity after colliding is 1.0 m / s to the right.

What is the velocity during the collision?

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Answer:

The only time an object has NO kinetic energy is when the velocity is "Zero"

Explanation:

The object starts out with no kinetic energy and potential energy of PE = mgh where m is the mass.The kinetic energy is zero. As the object falls it loses potential energy and gains kinetic energy KE = mv2/2.

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It is possible that when an object is stationary and not moving, it has no kinetic energy.

Only when an item is entirely at rest does it have no kinetic energy. The energy an object possesses as a result of its motion is known as kinetic energy. It is based on the object's mass and velocity.

When an object is not moving and has no velocity, it also has no kinetic energy.

According to the kinetic energy formula,

KE = 1÷2 × mass × velocity², if the velocity is zero, the entire term involving velocity becomes zero, resulting in zero kinetic energy.

Thus, when an object is stationary and not moving, it has no kinetic energy.

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Answer:

I would say there is friction against the floor, air resistance, and gravity.

Explanation:

The contact force acting on the toy is the frictional force, and the non-contact force acting on the toy is the gravitational force.

According to the question, a toy train is being pulled by a string along the floor.

The gravitational force acting on the toy train is the weight of the toy train, which is a non-contact force given by:

F  = mg

where m is the mass of the toy, and g is the acceleration due to gravity.

Now, the floor will exert a normal force against the toy, equal to the weight of the toy. Let the normal force be N.

Since the toy is in contact with the floor, there is a frictional force acting against the motion of the toy trains, which is a contact force and is given by:

f  = μN = μmg

where μ is the coefficient of friction between the toy and the floor.

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Answer:

Any choices for the blank?

The particle with a larger acceleration at any one moment when a proton and an electron are held apart a distance of 1 m and then released is the electron.

This is because the force between the two particles is given by Coulomb's law which states that the force of attraction or repulsion between two charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.The equation is given as;F=kq1q2/r^2where F is the force, k is the constant of proportionality, q1 and q2 are the charges of the two particles, and r is the distance between them.The proton and electron have opposite charges, and so there is a force of attraction between them. However, since the electron has a much smaller mass than the proton, it will experience a larger acceleration due to this force.

This is because the force of attraction between the two particles is given by Coulomb's law, which states that the force between two charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.F = kq1q2/r^2where F is the force, k is the constant of proportionality, q1 and q2 are the charges of the two particles, and r is the distance between them. Since the proton and electron have opposite charges, there is a force of attraction between them.However, since the electron has a much smaller mass than the proton, it will experience a larger acceleration due to this force. Therefore, the electron has a larger acceleration at any one moment.

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The particle with the larger acceleration is the proton, as the proton is heavier than the electron and they both will experience the same force as they are at the same distance from each other.

The force of attraction between two charged particles is given by Coulomb's law, which states that the force of attraction between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. This means that as the distance between the particles decreases, the force of attraction between them increases. Hence, as the distance between the proton and the electron decreases, the force of attraction between them increases, leading to an increase in acceleration. The acceleration of both the proton and the electron will continue to increase until they collide and cancel each other's charges.

The acceleration of an object is the rate at which its velocity changes over time. It is given by the formula

a = F/m,

where a is the acceleration, F is the force applied to the object, and m is the mass of the object.

Therefore, in the given scenario, both particles will experience the same force of attraction but the proton has a larger mass than the electron, so the proton will have a smaller acceleration than the electron. This means that the proton will move towards the electron at a slower speed compared to the electron, as acceleration is directly proportional to speed.

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