Which equation is correct according to Ohm’s law? Which equation is correct according to Ohm’s law? A.) V = IR B.) I = R/V C.) R = I/V D.) R = IV

The time taken for the bit to reach the maximum speed is 1.35 seconds.

The angular acceleration of the bit is determined by applying the following kinematic equation as shown below.

ωf² = ωi² + 2αθ

where;

α = (ωf² - ωi²)/2θ

α = (46,100² - 17,600²) / (2 x 19,700)

α = 46,077.4 rad/s²

The time taken for the bit to reach the maximum speed is calculated as follows;

ωf = ωi + αt

t = (ωf - ωi) / α

t = (79,900 - 17,600) / (46,077.4)

t = 1.35 seconds

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If the participants hadn't been reassigned, age would have been a confounding variable. Option D

A confounding variable is a variable that is associated with both the independent variable and the dependent variable.

In this case, age is associated with both video game playing and mood. Younger people are more likely to play video games, and they are also more likely to have better moods.

If the participants hadn't been reassigned, the difference in mood between the experimental and control groups could have been due to the difference in age, not the difference in video game playing.

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Answer:The climate is changing

Explanation:

But it is changing very slowly UwU

The Danube river is the second largest

Answer:

The cost per week of electricity is Rm 46.8

Explanation:

Electrical Power and Energy

The electrical power consumed by an appliance connected to a voltage V and carrying a current I is given by:

P = V.I

The energy consumed by an electrical appliance of power P during a time t is:

E = P.t

The electrical equipment in an office takes I=13 A when connected to a V=240 V supply.

The power consumed is:

P = 240 V * 13 A

P = 3,120 Watt

Converting to Kilowatt:

P = 3,120/1,000 KW

P = 3,12 KW

If the equipment is used t=30 hours each week, the energy is:

E = 3.12 KW * 30 h

E = 93.6 KWh

Since the cost of each KWh is Rm 0.50, the weekly cost of electricity is:

C = 93.6 * 0.50 = 46.8

The cost per week of electricity is Rm 46.8

Answer:

you may get bullied or teased for being a differrent race, ethnic.

Answer:

Workload

Explanation:

You may feel stressed about a heavier workload or more too do. You will also be paid as an employee unlike, a student.

The kinetic energy of the book after it is slids a distance of 2 meters will be 10 Joules.

The work-energy theorem states that "the work done on an object is the change in its kinetic energy".

Hence;

Kinetic energy = work done

Note that: work-done is expressed as:

Work done = f × d

Where f is force applied and d is distance traveled.

Given that:

Force applied f = 5 newton

Distance d = 2 meters

Work done = ?

Plug these values into the above formula and solve for the workdone.

Work done = f × d

Work done = 5N × 2m

Work done = 10Nm

Work done = 10 Joules

Therefore, the kinetic energy is 10 Joules.

Option B) 10 J is the correct answer.

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Answer:

000000000000000000000000000

Answer:

3.348 × 10^-9 N

Explanation:

The force of attraction between two objects can be calculated using the gravitational force equation:

F = G * (m1 * m2) / r^2

where F is the force of attraction, G is the gravitational constant (6.674 × 10^-11 Nm^2/kg^2), m1 and m2 are the masses of the two objects, and r is the distance between the centers of the objects.

Plugging in the given values, we get:

F = 6.674 × 10^-11 * (35 kg * 60 kg) / (5m)^2

F = 3.348 × 10^-9 N

Therefore, the force of attraction between the two objects is 3.348 × 10^-9 N.

Three facts I have learned this year in Physical Education are:

a) The importance of stretching before and after exercising.

b) The benefits of cardiovascular exercise.

c) The importance of staying hydrated during exercise.

Firstly, I have learned the importance of stretching before and after exercising. Stretching helps prevent injury and improves flexibility. I will make sure to incorporate stretching into my daily routine, whether it's through a short stretching session in the morning or by taking a few minutes to stretch before and after a workout.
Secondly, I have learned the benefits of cardiovascular exercise. Cardiovascular exercise, such as running or cycling, helps improve heart health and endurance. I will try to incorporate more cardiovascular exercise into my daily routine, such as going for a run or bike ride after work.
Lastly, I have learned the importance of staying hydrated during exercise. Dehydration can lead to fatigue and muscle cramps, so it's important to drink plenty of water before, during, and after exercise. I will make sure to carry a water bottle with me throughout the day and refill it regularly to ensure that I am staying hydrated.
In summary, by incorporating stretching, cardiovascular exercise, and staying hydrated into my daily routine, I hope to improve my overall physical health and well-being.

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The psychoanalytic perspective states that a personality is based on the childhood experiences as well as unconscious mind.

What do you mean by psychoanalytic perspective?

In English, the terms psychoanalytic and psychoanalytical are employed. The latter phrase, which is older, originally just meant "related to the investigation of the human psyche." However, both titles evolved to refer to that as psychoanalysis became recognized as a separate therapeutic discipline. Even while both are still in use, psychoanalysis is the more common descriptor nowadays. Humans are defined as having sexual and violent urges from the perspective of a psychoanalytic lens.

Psychoanalytic theory of personality: a psychoanalytic approach that focuses on each person's unconscious thoughts, beliefs, and memories. It says that these traits affect our personalities and behaviors.

The three level of consciousness are:

Consciousness

According to Freud, every human has a conscious mind that stores all of the information they are aware of about their surroundings. Any ideas, emotions, or even easily recalled memories are all included in the conscious mind. It's all we already know and are conscious of.

Preconsciousness

The level immediately beneath aware is known as preconscious. Everything that is not in the conscious mind but may very simply be recalled and become conscious is included in the preconscious mind.

Unconsciousness

The unconscious mind is the third and last degree of consciousness. Anything that is suppressed, seems to have been forgotten, or any emotion or thought that is not conscious is what is known as the unconscious mind. This could include mistreatment or bullying of children toward their parents.

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Answer:

Light takes less time than sound.

Explanation:

Let's say, the teacher and the student are at a distance "d" from each other.

The medium around them would be air.

And,

The speed of light in air is approx. 3× 10⁸ m/s

while, the speed of sound in air is approx. 330 m/s

We have a formula that establishes the relation between speed, distance and time.

\( \boxed{ \mathsf{speed = \frac{distance}{time} }}\)

Our hunt for time — Speed in both the scenarios is known to us whereas the distance is same.

Sound

\( \mathsf{330 = \frac{d}{time_{s}} }\)

\( \underline{\mathsf{time _{s} = \frac{d}{330} }}\)

Light

\( \mathsf{3 \times {10}^{8} = \frac{d}{time _{l} } }\)

\( \underline{ \mathsf{ time _{l} = \frac{d}{3 \times {10}^{8}} }}\)

The best way of comparison is finding their ratio.

\( \implies \mathsf{\frac{ time_{s}}{time_{l} } = \frac{ \frac{d}{330} }{ \frac{d}{3 \times {10}^{8} } } }\)

simplifying the fraction

\( \implies \mathsf{\frac{ time_{s}}{time_{l} } = \frac{d \times (3 \times {10}^{8} )}{330 \times d}}\)

d gets canceled and we're left with the following expression

\( \implies \mathsf{\frac{ time_{s}}{time_{l} } = \frac{ (3 \times10 \times {10}^{7} )}{330}}\)

30, being a common factor in the numerator as well as denominator, gets canceled out. and in its place remains 1/ 11

(why?

=> 30÷330 = 1÷11)

\( \implies \mathsf{\frac{ time_{s}}{time_{l} } = \frac{ 1\times {10}^{7} }{11}}\)

taking timeₛ to the numerator on the other side.

\( \implies \mathsf{time_{s} = \frac{ 1\times {10}^{7} }{11}\times time_{l}}\)

Therefore, we get timeₛ is approx. 10⁶ times the timeₗ.

That's a big difference, no wonder light's way much faster than sound.

As lesser the time taken to cover a distance, faster is the wave.

The sound takes about 874,000 times MORE time than the light takes.

Answer:

the answer is 2000Nm

Explanation:

wprk done = force × distance moved

w.d = 200N × 10m

w.d = 2000Nm

mark me as brainliest plyyzzz

The mass of the planet is  5.98 × 10^24 kg.

To calculate the mass of the planet, we can use Kepler's Third Law of Planetary Motion. This law states that the square of the period of revolution of a planet around the sun is directly proportional to the cube of the semi-major axis of its orbit.

First, we need to convert the period of the satellite's orbit to seconds. We know that there are 60 minutes in an hour, so the period can be expressed as (6 × 60 + 12) minutes, which equals 372 minutes. Multiplying this by 60 seconds, we get a period of 22,320 seconds.

Next, we need to find the semi-major axis of the orbit. In a circular orbit, the semi-major axis is equal to the radius of the orbit. Therefore, the semi-major axis is 8.8 × 10^6 m.

Now, we can apply Kepler's Third Law to calculate the mass of the planet. The formula is T^2 = (4π^2/GM) × a^3, where T is the period of revolution, G is the gravitational constant, M is the mass of the planet, and a is the semi-major axis of the orbit.

Rearranging the formula, we can solve for the mass of the planet:
M = (4π^2/G) × a^3 / T^2

Plugging in the values, we get:
M = (4 × π^2 / 6.67430 × 10^-11) × (8.8 × 10^6)^3 / (22,320)^2

Evaluating this expression, we find that the mass of the planet is approximately 5.98 × 10^24 kg.

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I

think

Answer:

is.......

it has several other objects in its original, though few are as massive as itself........

Answer:

my teachers have always taught me that a dwarf planet cannot have other objects in its orbit seeing that the gravitational force will make it collide with the planet or push it out of the orbit. hope it helps xx

Alright. It is necessary to identify the variables. Time, grass height, and their connections are separate points. To put it another way, it is both growing and lowering the drop.

From 0 to 1.5 seconds, the object is moving in the positive direction with a constant velocity of 10 m/s with time t. The position graph is a straight line with a positive slope, the velocity graph is a straight line with a constant slope of 10 m/s, and the acceleration graph is a straight line with a slope of 0 m/s^2.

How is it conceivable when spring and summer would be becoming longer in the autumn.

The behavior of these variables will depend on the specific situation and the forces acting upon the object in question. For example, if an object is in free fall, its position "x" will decrease as it falls towards the ground, its velocity "vx" will increase, and its acceleration "ax" will be constant and equal to the acceleration due to gravity.

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The complete question is :

Now, for each time period, look at the graphs of x, vx, and ax. Briefly describe what is happening for each of these variables during your identified time periods. To view any of these graphs in detail, double-click the graph. You’ll be able to view it in the Data Tool window. The graph is attached below

The question examines the interpretation of physics graphs representing displacement (x), velocity (vx), and acceleration (ax). Displacement graphs display object's position changes, velocity graphs show the speed and direction of its movement, and acceleration graphs reflect changes in velocity.

The question is asking you to analyze graphs representing displacement (x), velocity (vx), and acceleration (ax). In general, the displacement graph (x) shows the object's position relative to a particular point over time. A slope in this graph indicates movement, while horizontal lines mean the object is stationary.

The velocity graph (vx) displays how fast and in what direction the object is moving. Positive values indicate movement in one direction, and negative values represent movement in the opposite direction. A horizontal line at zero on the velocity graph means the object is at rest.

Finally, the acceleration graph (ax) reveals how velocity is changing over time. A zero on this graph means a constant velocity, even if it isn't zero.

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Answer:

Three Types of Computer The Computer are classified into three main types:: • Analog Computers • Digital Computers • Hybrid Computers (Analog + Digital) Analog Computers:: Analog Computer measures “Physical Quantities” for example Temperature, Voltage, Pressure, and Electric Current.

Answer: D 160kg object moving 126 m/s

Explanation:

An object having a mass of 162 kg and moving with a velocity of 124 m/sec will require the greatest amount of force to change its motion. The correct option is D.

Force is defined as the push or pull applied to the body. Sometimes it is used to change the shape, size, and direction of the body.

If the object has to stop, the final velocity must be zero. If the time is constant, the amount of force only depends on the mass and the velocity at which the body is moving.

The amount of force on the object depends on the momentum of the body.

The momentum of the body is;

P = mv

Object D will require the greatest amount of force to change its motion. Because the momentum of the body for option D is the greatest.

Hence, the correct option is D.

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Explanation:

Answer:At any instant, the object's kinetic energy is (5) x (its speed in meters per second)2 .

We can see here that the statement that is correct will be: B. The rock display with larger holes shows petroleum drilling, which is deep underground.

A geologist is a scientist who focuses on the solid components of the Earth, such as minerals and rocks, as well as the processes that shape the planet's surface.

Geologists study the make-up, structure, and past of the Earth's crust in order to comprehend geological processes including mountain creation, earthquake and volcanic activity, and the exploitation of natural resources. They frequently perform fieldwork, gathering samples, running surveys, and researching geological formations.

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The complete question is that:

Your class goes on a field trip to observe drilling machinery. The geologists at the drill site show you displays of drilled rocks to compare different types of drills and methods. The drilled holes in one rock display are significantly larger than the holes drilled in the display next to it. Given this information, which statement is correct? (1 point)

A. The rock display with smaller holes shows copper drilling, which is deep underground.

B. The rock display with larger holes shows petroleum drilling, which is deep underground.

C. The rock display with smaller holes shows petroleum drilling, which is closer to the surface.

D. The rock display with larger holes shows copper drilling, which is closer to the surface.

Answer:

700.7N

Explanation:

m = 375

x = 174

v = 25.5

a = ?

\( {v}^{2} = 2ax\)

F = ma

We substitute a

F = m * (v^2 /(2x))

F = 375 * 25.5^2/(2*174)

F = 700.7 N

Average net force is required to accelerate a 375 kg motorcycle initially at rest to a speed of 25.5 m/s over a distance of 174 m is  700.7 N

The push or pull on a mass-containing item changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.

Given in the question motorcycle of mass, m = 375 kg covers a distance of x = 174 m have initial velocity zero and final velocity, v = 25.5 m/sec then the acceleration a,

\(v^{2} = 2ax\)

\(a= v^{2} / 2x\)

Force required to accelerate,

F = ma

substitute a

F = m * \((v^2 /(2x))\)

F = 375 * \(25.5^2/(2*174)\)

F = 700.7 N

So the average net force required to accelerate motorcycle, F = 700.7 N.

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The correct answer is net displacement of a point on the rim of the blade during the deceleration is 10.0 in or 0.254 m 10.0 i n o r 0.254 magnitude .

Magnitude in physics is simply described as "distance or quantity." It shows the size or direction that an object moves in either an absolute or relative sense. It is a way of expressing something's size or scope. Magnitude in physics often describes a length or a size. A scalar is used to indicate a force's magnitude, which is the amount to which the body it is acting on will be accelerated by the force (a single number). The force's strength can also be considered in terms of its magnitude. An attribute of a mathematical object that indicates whether it is bigger or smaller than other things of the same kind is its magnitude or size.

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Answer:

The correct solution is "37.5 km".

Explanation:

Given:

Distance between the trains,  

d = 75 km

Speed of each train,

= 15 km/h

The relative speed will be:

= \(15 + (-15)\)

= \(30 \ km/h\)

The speed of the bird,

V = 15 km/h

Now,

The time taken to meet will be:

\(t=\frac{Distance}{Relative \ speed}\)

  \(=\frac{75}{30}\)

  \(=2.5 \ h\)

hence,

The distance travelled by the bird in 2.5 h will be:

⇒ \(D = V t\)

        \(=15\times 2.5\)

        \(=37.5 \ km\)

Answer:

b

Explanation:

The angle of incidence for a complete polarization of incident ray on water is 53.1⁰.

The given parameters;

The angle of incidence for a complete polarization of incident ray on water is calculated by applying Brewster's law as shown below;

\(\mu = tan \ \theta\)

where;

The polarizing angle is calculated as;

\(\theta = tan^{-1}(1.333)\\\\\theta = 53.1^ 0\)

Thus, the angle of incidence for a complete polarization of incident ray on water is 53.1⁰.

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Explanation:

Complete the first and second sentences, choosing the correct answer from the given ones.

1. T = 100 K

\(^{\circ}C=K-273\)

Put T = 100 K

\(T=100-273=-173^{\circ} C\)

A temperature of 100 K corresponds on a Celsius scale to (-173 °C)

2. T = 50 °C

\(K=^{\circ}C+273\\\\K=50+273\\\\T=323\ K\)

So, At 50 °C, it corresponds to a Kelvin scale of 323 K.

Increased driving can lead to higher vehicle maintenance and repair expenses, increased fuel costs, potential increases in auto insurance premiums, and additional parking fees, all of which should be considered when estimating the overall impact on your expenses.

The expenses that are likely to change based on how much you drive can be broadly categorized into two main areas: vehicle-related expenses and fuel-related expenses.

1. Vehicle-related expenses: The more you drive, the more wear and tear your vehicle will experience, leading to increased maintenance and repair costs. Regular oil changes, tire replacements, brake pad replacements, and other routine maintenance tasks will be required more frequently.

2. Fuel-related expenses: It's intuitive that the more you drive, the more fuel you'll consume, resulting in higher fuel expenses. Fuel prices can vary, but regardless of fluctuations, increased mileage will directly impact your fuel budget. Fuel-efficient vehicles may mitigate some of these costs, but the overall impact on your expenses will still be noticeable.

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Answer:

The wave speed is 2.8 m.

Explanation:

Wavelength = 1.4 m

frequency, f = 2 Hz

the wave speed is given by

wave speed = wavelength x frequency

wave speed = 1.4 x 2 = 2.8 m

option (D) is correct.  

The dependent variable in this experiment is: D. the time for the blocks to hit the ground.

An experiment can be defined as a scientific investigation which typically involves the process of manipulating an independent variable (the cause), so as to determine or measure the dependent variable (the effect).

In every experiment, there are two (2) main types of variables and these include the following:

In this scenario, we can infer and logically deduce that the dependent variable in this experiment is the time for the blocks to hit the ground because it signifies the effect of the independent variable (three blocks).

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Complete Question:

A student drops three blocks from the same height and measures the time it takes for the blocks to hit the ground. Each block has a different mass.

What is the dependent variable in the experiment?

A. the volume of the blocks

B. the drop height

C. the mass of the blocks

D. the time for the blocks to hit the ground

The torque that is produced at the center of the drum is 50 Nm.

The term torque has to do with a force that leads to a turning effect. I can use the example of a tap to show you what is meant by a torque. The force that is exerted on a tap causes the tap to turn and this is what we mean by saying that a torque would produce a turning effect.

We have the following;

Force = 250 N

Distance = 20 cm or 0.2 m

Torque = 250 N  *  0.2 m

= 50 Nm

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