50 POINTS!! BRAINLEST

Answer:8.86 N

Explanation:

Volume of water in cylinder is V= ((3.14*0.06)/4)*0.32=0.0009047

Mass of water is = 0.0009047*998=0.903

Force applied by water is 0.903*9.83=8.86N

In this RL circuit, the inductive time constant is found to be approximately 12.93 seconds.

The inductive time constant of an RL circuit can be determined by analyzing the rate at which the current builds up to one-third of its steady-state value.

In an RL circuit, the rate at which the current builds up is determined by the inductive time constant (symbolized by the Greek letter tau, τ). The inductive time constant represents the time required for the current in the circuit to reach approximately 63.2% of its steady-state value.

Given that the current builds up to one-third (33.3%) of its steady-state value in 4.31 seconds, we can use this information to calculate the inductive time constant. We know that when the current reaches one-third of its steady-state value, it corresponds to approximately 33.3% of the difference between the initial current (at t=0) and the steady-state current.

Using this relationship, we can set up the equation:

33.3% = (1 - e^(-4.31/τ)) * 100%

Rearranging the equation and solving for τ, we find:

τ = -4.31 / ln(1 - 33.3%/100%)

Evaluating this expression gives us τ ≈ 12.93 seconds. Therefore, the inductive time constant of the RL circuit in question is approximately 12.93 seconds.

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Answer:

with teamwork

Explanation:

you need to use team work so the right answer is C

Answer:

False

Explanation:

An intermediate-mass black hole (IMBH) nearby but not at the direct center of a galaxy would most likely have a significant impact on the dynamics of stars in its vicinity.

Scientist 2 likely discussed how an IMBH, while not having the gravitational pull of a supermassive black hole at the center of a galaxy, would still have a significant impact on the dynamics of stars in its vicinity due to its strong gravitational pull.

As stars orbit around the IMBH, they would experience gravitational perturbations that could cause them to change direction or even be ejected from the galaxy entirely. This could have observable effects on the overall shape and structure of the galaxy, as well as the distribution of stars and gas within it.

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the momentum = m * v

m : mass

v : velocity

momentum = 1 * 50 = 50 kg.m/s

Answer:

Explanation:

The speed of the rocket can be found by using the formula

\(v = \frac{d}{t} \\ \)

d is the distance

t is the time taken

From the question we have

\(v = \frac{9000}{12} \\ \)

We have the final answer as

Hope this helps you

Answer:750m/s

Explanation:I got 750m/s :D Hopefully this helped! lol

T = 2π√l/g

\(\tt \dfrac{T_2}{T_1}=\sqrt{\dfrac{l_2}{l_1} }\)

\(\tt \dfrac{6.34}{T_2}=\sqrt{\dfrac{10}{90} }\Rightarrow T_2=19.02\)

\(\tt \dfrac{6.34}{T_2}=\sqrt{\dfrac{10}{160} }\Rightarrow T_2=25.36\)

Explanation:

Sound travels more quickly through solids than through liquids and gases because the molecules of a solid are closer together and, therefore, can transmit the vibrations faster. Sound travels most slowly through gases because the molecules of a gas are farthest apart.

thats epic my guy jsjsjdjdjd

Answer:

false I think

Explanation:

Answer:

Principal focus of concave lens -

★ The point at which rays parallel to principal axis coming from infinity appear to converge after being refracted from concave lens is called the principal focus of concave lens.

________________________

• Additional information -

★ Principal focus - A number of rays parallel to the principal axis after reflection from a concave mirror meet at a point on the principal axis or appear to come from a point after reflection from a convex mirror on the principal axis. This is called principal focus.

The image formed by the convex lens is explained below in the image. A convex lens forms an image through refraction. It can create both real and virtual images.

A real image is formed when light converges after passing through the lens. It appears inverted and can be projected onto a screen.

A virtual image, on the other hand, appears to diverge from the lens and is not projected onto a screen. It appears upright. The characteristics of the image depend on the object's position relative to the lens and the lens's focal length. The image is attached below.

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(a) The value of ni associated with the 94.96-nm spectral line in the Lyman series of hydrogen can be determined using the Rydberg formula:

1/λ = R(1/nf^2 - 1/ni^2)

Where λ is the wavelength of the spectral line, R is the Rydberg constant, nf is the final energy level, and ni is the initial energy level. Solving for ni, we get:

ni = sqrt((1/nf^2 - 1/(λR))^(-1))

Plugging in the values for λ and nf (nf = 1 for the Lyman series), and using the known value of R for hydrogen, we get:

ni = 6

Therefore, the spectral line at 94.96 nm in the Lyman series of hydrogen corresponds to a transition from the 7th energy level (ni = 6) to the ground state (nf = 1).

(b) No, this wavelength cannot be associated with the Paschen series of hydrogen. The Paschen series corresponds to transitions between energy levels where nf = 3 and higher, whereas the Lyman series corresponds to transitions where nf = 1.

(c) No, this wavelength cannot be associated with the Balmer series of hydrogen either. The Balmer series corresponds to transitions between energy levels where nf = 2 and higher, whereas the Lyman series corresponds to transitions where nf = 1.

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(a) Both spheres are launched with 0 initial velocity in the vertical direction, so they both hit the ground at time t such that

10 m - 1/2 g t ² = 0

where g = 9.80 m/s² is the magnitude of the acceleration due to gravity.

Solve for t :

10 m = 1/2 g t ²

t ² = (20 m) / g

t ≈ 1.4 s

(b) Sphere A travels a horizontal distance of

(5.0 m/s) (1.4 s) ≈ 7.1 m

while sphere B travels a distance of

(2.5 m/s) (1.4 s) ≈ 3.6 m

Answer:

in order to know the length of something

Option (B) many

According to the lesson, it can be said that many adults have some of the same problems with sleep that Bailey does.

Sleeplessness is one of the most common issues, every second adult or a teenager is facing now a days. Due to a lot of responsibilities, we end up having little time for sleep and this in turn affects our body functions.

Good sleep hygiene is often recommended to improve sleep quality, which  also helps in alleviating anxiety due to work load and responsibilities.

Answer is Option (B) many

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Answer:

The basic law of magnetism is that like pole repel one another and unlike pole attract one another

Answer:

30. $3.85

31. $2.22

Explanation:

30. The time duration of the kitchen clock is left on = All day = 24 hours

The power rating of the kitchen clock, P = 4 watts

The electricity cost in Alberta, R = $0.11 per kilowatt hour

The total number of hours the kitchen clock is on during the year, 't', is given as follows;

t = Number of hours per day × Number of days per year

∴ t = 24 hours/day × 365 days/year = 8,760 hours

The energy consumption of the kitchen clock, per year, E = P × t

∴ E = 4 watts × 8,760 hours = 35,040 watts-hour = 35.040 kw·h

The cost of operating the clock in one year, C = E × R

∴ Operating cost for the kitchen clock

∴ C = 35.040 kw·h × $0.11/(kw·h) = $3.8544 ≈ $3.85

The cost of operating the clock in one year, C ≈ $3.85

31. The power rating of the ghetto blaster, P = 28 watts

The time duration the ghetto blaster was on during an average month = All day = 24 hours

The number of days during an average month, n = 30 days

The cost of electricity in Alberta, R = $0.11 per kilowatt hour

The time in hours the ghetto blaster was on, t = 30 days/month × 24 hours/day

∴ t = 720 hours per month

The cost of operating the ghetto blaster in one month, C = P × t × R

∴ C = 28 W × 720 hours × 1 kw·h/(1000 w·h)× $0.11/(kw·h) = $2.2176

∴ The cost of operating the ghetto blaster in one month, C ≈ $2.22

the horizontal component of the golf ball's initial velocity is 47.92 m/s.

The given parameters;

initial velocity of the golf, v = 60 m/s

angle of projection of the golf, Ф = 37°

The horizontal component of the golf ball's initial velocity is calculated as follows;

\(v_0_x = v\times cos(\theta)\\\\\)

\(v_0_x\) = 60 m/s  x cos (37)

\(v_0_x\) = 60 m/s x 0.7986

\(v_0_x\) = 47.92 m/s

Thus, the horizontal component of the golf ball's initial velocity is 47.92 m/s.

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The phrase that describes the composition of the outer planets is 'are gaseous'. That is option A.

A planet is defined as the astronomical object that has enough gravity that causes it to revolve round about the sun.

There are various types of planet and they include the following:

Each planet is made up of and inner and outer geographical environment which in turn bears various unique characteristics.Most outer planets are made up of gaseous contents.

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Answer:

It Decreases

I = 0.00744 A (Amps)

Hi there !

Ohm's law formula

I = V/R

I = 3.5V/470Ω

I = 0.00744 A

Good luck !

Answer:

\(V=1.76\times 10^{-4}\ V\)

Explanation:

Given that,

The diameter of a wire, d = 1.628 mm

Radius, r = 0.814  mm = 0.000814m

Current, I = 12.5 mA

The length of the wire, l = 2m

The resistivity of the wire, \(\rho=1.47\times 10^{-8}\ \Omega-m\)

We need to find the potential difference across the wire. We know that the resistance of the wire is given by :

\(R=\rho\dfrac{l}{A}\)

Also, V = IR

\(\dfrac{V}{I}=\rho\dfrac{l}{A}\\\\V=\dfrac{\rho l I}{A}\\\\V=\dfrac{1.47\times 10^{-8}\times 2\times 12.5\times 10^{-3}}{\pi \times (0.000814)^2}\\\\V=1.76\times 10^{-4}\ V\)

So, the potential difference of the wire is \(1.76\times 10^{-4}\ V\).

Answer:

30 J

Explanation:

You have to transform g in kg, so 600 g=0,6 kg

the kinetic energy value is

K= ½ mv² so it is K=½ (0.6×100)=30 J

\(\text{Kinetic energy,}\\\\~~~~~~E_k = \dfrac 12 mv^2\\\\~~~~~~~~~~=\dfrac 12 \times 6\times 10^{-1} \times 10^2~~~~~~~;[m = 600 g = 600 \times 10^{-3}~ \text{kg} = 6\times 10^{-1}~ \text{kg}]\\\\~~~~~~~~~~=\dfrac{60}2\\\\~~~~~~~~~~= 30~ J\)

Answer:

Earth will complete more revolutions than Saturn.

Explanation:

I just did it :)

compared to mean distance. To be before 551 plus 8 97.5, or 5448.5 million, would be necessary. The total mass of Pluto & Charon is 1.5 x 1022 kilograms (Mpluto+MCharon).

A semimajor axis (the average distance to the Sun) is expressed in units of a astronomical unit (AU), which is the average distance of the Earth to the Sun. For instance, Neptune is typically 30 times closer to the Sun than that of the Earth.

One can also state that cube of a planet's mean distance is equivalent to a square of its measure of distance period because a planet's semi-major axis is equal to its mean distance.

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The primary difference between speed and velocity is that speed is a scalar quantity that describes how fast an object is moving, while velocity is a vector quantity that describes how fast an object is moving in a particular direction

Speed and velocity are two critical concepts in physics. They are used to describe the motion of an object. While both describe how fast an object is moving, there are some fundamental differences between the two. Let's explore these differences.

What is speed?

Speed is a scalar quantity that describes how quickly an object moves. It is measured in meters per second (m/s) or kilometers per hour (km/h).

Speed can be calculated using the following formula:

speed = distance ÷ time

For example,

if an object covers a distance of 150 meters in 10 seconds, its speed can be calculated as follows:

Speed = distance ÷ time= 150 meters ÷ 10 seconds= 15 meters per second (m/s)

What is velocity?

Velocity, on the other hand, is a vector quantity that describes how fast an object is moving in a particular direction. It is measured in meters per second (m/s) or kilometers per hour (km/h).

Velocity can be calculated using the following formula:

velocity = displacement ÷ time

For example, if an object travels a displacement of 150 meters in 10 seconds in a specific direction, its velocity can be calculated as follows:

Velocity = displacement ÷ time= 150 meters ÷ 10 seconds= 15 meters per second (m/s) in a specific direction.

In conclusion, the primary difference between speed and velocity is that speed is a scalar quantity that describes how fast an object is moving, while velocity is a vector quantity that describes how fast an object is moving in a particular direction.

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Answer:2.7 X 10₁₀W = 27 GW

Explanation:

W=1.4 X 10₁₃ J

ΔT=8.5 mins

P=W/ΔT=

1.4 x 10₁₃J/(8.5 mins)(60s/min)=2.7 x10₁₀W=27GW