a 1 meter long solenoid with 200 turns carries 2a of current . calculate the magnetic field on axis.

Answer:

If the length is doubled, the period will increase by a factor of √2 .

Explanation:

For Simple Pendulum

T = 2π√(L/g) -----------------(1)

Where T is time period, L is length and g is acceleration due to gravity

Now,

If we double the length,

T = 2π√2L/g

T = √2(2π√(L/g)

From (1), We get

T = √2(T)

So,

If the length is doubled, the period will increase by a factor of √2 .

Wavelength is a measure of the distance between two consecutive peaks or troughs of a wave. It is an important property of light and other electromagnetic radiation, and can be used to calculate their energy.

The most common way to calculate the wavelength of radiation is using the equation

c=λν, where c is the speed of light (3 x 10^8 m/s), λ is the wavelength and ν is the frequency.

Frequency is the number of wave peaks that pass a certain point per second, and can be measured in hertz (Hz).

To calculate the wavelength, start by finding the frequency of the wave. This can be done by counting the number of wave peaks that pass a certain point in one second, or measuring the time between two wave peaks and dividing one second by that time. Once the frequency is known, plug it into the equation c=λν to calculate the wavelength.

For example, if the frequency of a wave was measured to be 10 Hz, the wavelength can be calculated by solving the equation c=λν, giving λ = 3 x 10^8/10 = 3 x 10^7 m.

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Answer:

sun is the main source while the other object reflect light on the sun

Explanation:

nasa libro yans

2482 kg. The answer is also in the image

The newton third law of motion and the second law of motion should be applied in different situations.

In the case when it is not at the time when empty hangs lightly should be against the wall because here there is the inverse reaction force should be on you. So here the third law should be used.

In the case when we carry a heavy load so our hand should be hurt due to the downward force act so here the second law should be used.

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Answer:

a

 \(a = 21.7 \ m/s^2\)

b

\(F = 108.5 \ N\)  

Explanation:

From the question we told that

   The mass is  m  =  5 kg

    The initial speed \(u = 5 m/s\)

    The time taken to attain \(v = 70 \ m/s\) is  t =  3 s

Generally from kinematic equation we have that

     \(v = u + at\)

=> \(70 = 5 + a * 3\)

=>  \(a = 21.7 \ m/s^2\)

Generally  the force acting is mathematically represented

        \(F = m * a\)

=>      \(F = 5 * 21.7\)  

=>      \(F = 108.5 \ N\)  

Answer: A

Explanation: Edg2020

Answer:

Harmful bacteria are called pathogenic

Explanation:

Harmful bacteria are called pathogenic bacteria because they cause disease and illnesses like strep throat, staph infections, cholera, tuberculosis, and food poisoning.

The first nanosatellite from Bhutan to be launched into space was named BHUTAN-1. The satellite was created as part of the Birds-2 program at the Kyushu Institute of Technology. The Birds program aids nations in launching their initial satellite. On June 29, 2018, BHUTAN-1 was put into orbit by the SpaceX CRS-15 mission. On August 10, 2018, it was released from the International Space Station's (ISS) Kib module. The Earth was captured by the satellite's cameras.

The BHUTAN-1 (Bhutan), UiTMSAT-1 (Malaysia), and Maya-1 satellites were created as part of the Birds-2 program (Philippines). Graduate students from Bhutan who were attending Kyutech to complete their master's degrees created BHUTAN-1 (Kyushu Institute of Technology).

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Answer:

The force is - 150 N

Explanation:

F = 30 • - 5 = - 150

Answer: 20 it

Explanation:

Answer: He was labeled as one of Africa's cruelest dictators because during his eight year reign many civilians were massacred. He drove out Uganda's Indian and Pakistani citizens and spent large amount of money on the military which led to the economic decline of the country.

Explanation:

Answer: 480 N is required to maintain the arrangement .

Explanation:

Given, 320 N  force is required to hold 2 protons in a particular arrangement .

Then the force required to keep 1 proton in a particular arrangement = 320/2

= 160 N

Then if  a proton is replaced by an alpha particle , it is given that a alpha contains 2 protons , then we conclude that after replcament , the arrangement has 1 alpha and 1 proton = 3 protons

Then , the force exerted by 3 protons = 3×160 = 480 N

The force exerted by the arrangement , if one of the protons is replaced with alpha is 480 N

(a) Yes, our velocity changes because the direction is changing. (b) No, we do not accelerate.

(a) Velocity is a vector quantity that includes both magnitude (speed) and direction. When we round a curve and drive east, the direction of our motion changes.

Therefore, even if our speed remains constant, the velocity vector changes because it now points in the eastward direction instead of the previous direction.

(b) When the magnitude of the direction of the velocity is changed, we say that acceleration has occurred. In this scenario, although the direction of your velocity changes, your speed remains constant.

Since the rate at which velocity changes determines acceleration, there cannot be acceleration without a change in velocity.

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Just divide the d/t to get answer: 10.99

Explanation:

Velocity and displacement take direction of motion into account while distance does not take direction of motion into account.

Vector quantities take into account both magnitude and direction of motion while scalar quantities only take the magnitude of motion into account. In describing the motion of an object, we use terms such as; velocity, distance, displacement etc.

Looking at the options provided in the question, displacement and velocity are vectors hence they take the direction of motion into account. Distance is a scalar quantity hence it does not take direction of motion into account.

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The measure of central tendency that should be used to calculate the cutoff time for the final race is the median.

Option C.

The median is the middle point in a dataset—half of the data points are smaller than the median and half of the data points are larger.

To find the median: Arrange the data points from smallest to largest. If the number of data points is odd, the median is the middle data point in the list.

So from the given data of the 100 meter dash, the measure of central tendency that should be used to calculate the cutoff time for the final race is the median.

The median will help to separate half of the data points that are smaller than the cutoff time and half of the data points are larger than the cutoff time.

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The voltage drop across the 18 kΩ resistor is 90 volts. This means that when a current of 5 mA flows through an 18 kΩ resistor, there is a potential difference of 90 volts across the resistor.

To calculate the voltage drop across a resistor, Ohm's Law can be applied. Ohm's Law states that the voltage (V) across a resistor is equal to the product of the current (I) flowing through it and the resistance (R) of the resistor. The formula for Ohm's Law is V = I * R.

Given:

Current (I) = 5 mA = 5 * 10^(-3) A

Resistance (R) = 18 kΩ = 18 * 10^(3) Ω

Using Ohm's Law, we can calculate the voltage drop (V):

V = I * R

= (5 * 10^(-3) A) * (18 * 10^(3) Ω)

= 90 V

Therefore, the voltage drop across the 18 kΩ resistor is 90 volts. This means that when a current of 5 mA flows through an 18 kΩ resistor, there is a potential difference of 90 volts across the resistor.

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Answer:

Cells provide structure for the body, take in nutrients from food and carry out important functions. ... These organelles carry out tasks such as making proteins?, processing chemicals and generating energy for the cell.

Explanation:

Cells are the basic structures of all living organisms.

Answer:

The ability of gases to be forced or squeezed into smaller volumes is called compressibility

Answer:

Characterization is the process by which the writer reveals the personality of a character. Characterization is revealed through direct characterization and indirect characterization. Direct Characterization tells the audience what the personality of the character is.

Answer:A

Explanation: my teacher told me lol

The option that is not a change that occurred to organisms over time in the fossil record is A. Decrease in the number of species

A fossil record simply refers to the history of the life of the fossils. It means the remains of imprints of the organisms that are from earlier geological periods.

It should be noted that the fossil record is important to archeologists as it helps in placing events in their appropriate eras.

A change that didn't occur to the organisms over time in the fossil record is the decrease in the number of species.

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Answer:

its speed will increase to 8 newtons allowing its position to dramatically change.

Answer:

0.1 amps or A

Explanation:

I believe to calculate that you would have to use the formula V = IR and change it to:

I = V/R

I = 1.5/15

I = 0.1 amps or A

Answer:

a) F = 250 [N]

Explanation:

Force can be calculated by means of Newton's second law, which tells us that force is the product of mass by acceleration.

a)

F = m*a

where:

F = force [N]

m = mass = 25[kg]

a = gravity acceleration = 10 [m/s²]

F = 25*10 = 250 [N]

Yes, this force would be different on Mars, since the gravitational acceleration of Mars is different from that of Earth.

gm = Martian gravity = 3.72 [m/s²]

Fm = 3.72*25 = 93 [N]

Answer: 9.675 Hz .

Explanation:

Given, velocity of waves = 12.9 m/s

Length of string = 2.00 m

Let \(\lambda\) be the wavelength , then for 3 loops

\(\dfrac{3}{2}\lambda= \text{length of string}\\\\\Rightarrow\ \dfrac{3}{2}\lambda= 2\ m\\\\\Rightarrow\ \lambda= \dfrac{4}{3}\ m\)

Now , velocity = frequency x wavelength

Then, frequency = \(\dfrac{velocity}{wavelength}\)

\(=\dfrac{12.9\times3}{4}\\\\=9.675\ Hz\)

hence, it will create standing waves with 3 loops at 9.675 Hz .