What is the ph of the solution obtained by mixing 30.00ml of 0.250 m hcl and 30.00 ml of 0.125 m naph?

Answer:

about 2s or 3s,

Explanation:

15 m/s - 9.8 m/s = 5.2 m/s (1 sec)

5.2 m/s - 9.8 m/s = -4.6 m/s (2 sec)

For compound microscope:  the objective lens produces a real, inverted image that is then magnified by the eyepiece lens to produce an upright, virtual image.

For simple microscope: The objective lens produces a real, inverted image that is viewed directly by the eye without the need for an eyepiece lens.

For telescope: The objective lens or mirror produces a real, inverted image that is then magnified by the eyepiece lens to produce an upright, virtual image. The eyepiece can be positive or negative depending on the desired magnification.

The following are some signs (positive or negative) of objective and eyepiece lenses in microscopes and telescopes:

Objective lens:

Eyepiece lens:

Learn more about objective and eyepiece here: https://brainly.com/question/14055649

#SPJ1

The propeller's angular velocity (ω) is given by the formula:

ω = (2πN) / T

To compute the propeller's angular velocity in rad/s, we need to know the number of revolutions per unit of time. Let's assume the propeller completes N revolutions in T seconds.

The angular velocity (ω) is given by the formula:

ω = (2πN) / T

Here, 2π represents a full circle (360 degrees or one revolution) in radians.

If the values of N (number of revolutions) and T (time) are given then, we can calculate the propeller's angular velocity in tems of value.

Hence, The propeller's angular velocity (ω) is given by the formula:

ω = (2πN) / T

To know more about angular velocity here

https://brainly.com/question/32217742

#SPJ4

The propeller's angular velocity in rad/s can be computed by dividing the angular displacement by the time taken for one complete revolution.

To compute the propeller's angular velocity in rad/s, we need to know the angular displacement and the time taken for one complete revolution.

Angular velocity is calculated by dividing the angular displacement by the time taken.

Let's assume that the propeller completes one full revolution, which corresponds to an angular displacement of 2π radians (since one revolution is equal to 360 degrees or 2π radians).

If the time taken for one complete revolution is given, we can directly calculate the angular velocity by dividing the angular displacement by the time taken.

For example, if the propeller completes one revolution in 0.5 seconds, the angular velocity would be:

Angular velocity = Angular displacement / Time taken = 2π radians / 0.5 seconds = 4π radians per second (rad/s)

About compute here:

https://brainly.com/question/31064105

#SPJ11

Answer:

Explanation:

equal in magnitude and opposite in direction

According to the electromagnetic spectrum, ultraviolet light has wavelengths from 10 nm to 400 nm and infrared light from 750 nm to 1 mm.

This means that infrared light has a longer wavelength than ultraviolet light.

We know the relation between wavelength and frequency as λ = c / f

where, λ is the wavelength

c is the speed of light

f is the frequency

The above equation tells us that frequency is inversely proportional to the wavelength. In other words, if the wavelength increases, frequency decreases.

As infrared light has a longer wavelength than ultraviolet light, infrared has a lower frequency than ultraviolet rays.

The question is incomplete. The complete question is how do the wavelength and frequency of infrared light compare to the wavelength and frequency of ultraviolet light?

To know more about wavelength:

https://brainly.com/question/13961990

#SPJ4

The output force on the piece of food the chopsticks pick up is mechanical advantage times 3 N.

The force amplified by utilising a tool, mechanical device, or machine system is known as mechanical advantage. To achieve the desired output force amplification, the gadget trades off input forces against movement.

Mathematically:

mechanical advantage = output force/input force

Given that input force = 3 N.

Hence, output force = mechanical advantage × 3 N.

Learn more about mechanical advantage here:

https://brainly.com/question/16617083

#SPJ1

Answer:

B. 2 m/s

Explanation:

With all collisions, momentum is conserved. This is known as the Conservation of Momentum.

To find the momentum of an object, multiply its mass by its velocity.

\(m_yv_y+m_ov_o=(m_y+m_o)v_f\), solving for vf

Plugging in numbers, we get:

\(100\cdot 8 + 200(-1)=(100+200)v_f\)

\(300v_f=600,\\v_f=\boxed{2\text{ m/s}}\)

Explanation:

Answer:

option D

Explanation:

this is because it occurs in many different dimensions, including biological, cognitive and socioemotional. this is also the answer on apex.

Answer D would be correct for a p e x

Answer:

its very simple this list the items that you have in your house that have electric energy

Explanation:

Blackbody radiation is a phenomenon that exhibit particle nature of light. Correct option is (B).

(a) Interference is a phenomenon in which two waves of same frequency superpose to give resultant intensity different from sum of their separate intensity. So, it cannot exhibit particle's nature of light.

(b) Blackbody radiation is a theoretical concept in quantum mechanics in which a material or substance completely absorbs all frequencies of light. It exhibit particle nature of light.

(c) Diffraction is a phenomenon in which light bends at sharp ends of an obstacle or a hole. So, it also cannot exhibit particle's nature of light.

(d) The double-slit experiment is a demonstration that light and matter can display characteristics of both classically defined waves and particles.

To know more about the Blackbody radiation, here

brainly.com/question/3904451

#SPJ4

The scale will read 147N

The mass of the object, m = 15 kg

Since I am on the earth, the acceleration due to gravity on the earth is:

g = 9.8 m/s²

The scale will read the weight of the object, and is calculated below

The weight, W = mg

W = 15(9.8)

W = 147 N

Therefore, the scale will read 147N

Answer:

B

Explanation:

kinetic energy (KE) is the energy possessed by moving bodies. It can be expressed as:

KE = \(\frac{1}{2}\)m\(v^{2}\)

Where: m is the mass of the object, and v its speed.

For example, a stone of mass 2kg was thrown and moves with a speed of 3 m/s. Determine the kinetic energy of the stone.

Thus,

KE =  \(\frac{1}{2}\) x 2 x \(3^{2}\)

     = 9

KE = 9.0 Joules

Assume that the speed of the stone was 4 m/s, then its KE would be:

KE =  \(\frac{1}{2}\) x 2 x \(4^{2}\)

     = 16

KE = 16.0 Joules

Therefore, it can be observed that as speed increases, the kinetic energy increases. Thus option B is appropriate.

Answer:

299,792,458 m/s

Through these observations alone, scientists determined that the speed of gravity was between 2.55 × 108 m/s and 3.81 × 108 m/s, completely consistent with Einstein's predictions of 299,792,458 m/s.

Explanation:

Answer:

It has 11 electrons 23_11=11

The distance and velocity of one of the galaxies, the universe "started its trip about 17.23 billion years.

A galaxy redshift = 0.228

velocity = redshift × speed of light

= 0.228 × 3 × 10⁸m/s

velocity = 6.84 × 10⁷ m/s

Distance = 1050 × 3.2 × 10⁶ light years

= 1050 × 3.2 × 10⁶× 9.46 × 10¹⁵ m

= 3.17856 × 10²⁵ m

So,

Age = D/v

= 5.436 × 10¹⁷ sec

1 sec = 3.17 × 10¹⁷ sec

Age = 5.436 × 10¹⁷ × 3.17 × 10¹⁷ sec

= 17.23 billion years

Thus, according to the relationship between distance and velocity, the universe started its trip about 17.23 billion years.

Learn more about universe, here:

https://brainly.com/question/13465544

#SPJ4

Shaking the floor as you bounce your leg is an example of resonance. So, option B.

Resonance is defined as the phenomenon that happens when the amplitude of oscillations of an object become larger due to the identical vibrations of another object.

The principle of resonance is that, the frequency at which the body vibrates when excited is known as the natural frequency of object.

If you don't give it an external push on a periodic basis, its natural frequency is approximately similar to oscillating without a push. Otherwise, it will eventually stop because of to air resistance or friction.

To learn more about resonance, click:

https://brainly.com/question/15337338

#SPJ1

The distance from the starting point is same as the hypotenuse of the right angle triangle and the length is 3.606 blocks

This is a rule applied in mathematics that states that the sum of both the square of the opposite and the square of adjacent is equals to the square if the hypotenuse. The rule holds true for a right angled triangle.

the part described forms a right angle triangle so the opposite three blocks while the adjacent is two blocks and the hypotenuse will be solved as follows:  

Hypotenuse^2 = opposite^2 + adjacent^2

= 3^2 + 2^2

=9 + 4

= 13

Hypotenuse = sqrt(13)

Hypotenuse = 3.606 blocks

Read more on Pythagoras rule here: https://brainly.com/question/343682

#SPJ1

Answer:

Explanation:

you're welcome :)) please give me branliest

Answer:

Approximately \(19.6\; {\rm m}\) (assuming that \(g = 9.81\; {\rm m\cdot s^{-2}}\) and that air resistance is negligible.)

Explanation:

Assume that the air resistance on the rock is negligible. During the descent, the acceleration \(a\) of the rock will be constant: \(a = (-g) = (-9.81)\; {\rm m\cdot s^{-2}}\).

It is given that the descent took \(t = 2.00\; {\rm s}\). Let \(x\) denote the displacement (change in position) of the stone. Apply the SUVAT equation \(x = (1/2)\, a\, t^{2}\) to find displacement \(x\!\):

\(\begin{aligned}x &= \frac{1}{2}\, a\, t^{2} \\ &= \frac{1}{2}\, ((-9.81)\; {\rm m\cdot s^{-2}})\, (2.00\; {\rm s})^{2} \\ &\approx (-19.6)\; {\rm m}\end{aligned}\).

Note that \(x\) is negative since the water is below the initial position of the rock. Therefore, the distance to the water will be approximately \(19.6\; {\rm m}\).

Can you give me any more information?

The question asks to explain why the number of molecules in a gas with speeds in a finite interval can be approximated using the formula ΔN = N∫(v+Δv)v f(v) dv. It also requires the calculation of the number of molecules within specific speed intervals for oxygen gas at different temperatures.

In a gas of N molecules, the distribution of speeds is described by a velocity distribution function f(v), which gives the probability density of finding a molecule with a certain speed v. The number of molecules with speeds in the interval v to v+Δv can be calculated by integrating the velocity distribution function over that interval: ΔN = N∫(v+Δv)v f(v) dv.

For part A, where the speed interval is Δv = 15 m/s around the most probable speed (vmp), we can use the approximation mentioned in the question. If Δv is small, f(v) can be considered approximately constant over the interval. Therefore, ΔN ≈ Nf(v)Δv. To calculate the number of molecules within this speed interval for oxygen gas at 296 K, we need to know the functional form of the velocity distribution function f(v) for oxygen gas. Once we have f(v), we can plug in the values and calculate ΔN as a multiple of N.

Parts B, C, D, E, and F involve similar calculations for different speed intervals and temperatures. The only difference is the specific temperature at which the calculations are performed. To obtain the numerical answers for each part, we need the velocity distribution function for oxygen gas at the given temperatures.

Learn more about Molecules:

https://brainly.com/question/32298217

#SPJ11

The bird's average speed when he flies 10 m/s for 3 s, 15 m/s for 3s and 20 m/s for 4 s is 15.5 m/s. The right option is C 15.5 m/s

Average speed can be defined as the ratio of the total distance to the total time traveled by an object.

To calculate the average speed of the bird, we use the formula below.

Formula:

From the question,

Givne:

Substitute these values into equation 1

Hence, the average velocity of the bird is 15.5 m/s.

Learn more about average velocity here: https://brainly.com/question/24739297

#SPJ1

the compare software

hope it's help

Answer:

you ask or answer?

Explanation:

thanks for point

When the ball is kicked, there is now an unbalanced force that acts on the ball thereby impacting an acceleration.

We know that according to Newton's laws, an object would remain in its state of rest or a state of uniform motion unless it is acted upon by an external force. This is also known as the law of inertia.

As the ball is kept on the ground, there are two forces that act on the ball;

1) The weight of the ball that act downwards

2) The reaction force on the ball that acts upwards

The two forces are balanced hence the ball remains on the ground.

When the ball is kicked, there is now an unbalanced force that acts on the ball thereby impacting an acceleration.

Learn more about unbalanced forces:https://brainly.com/question/19054208

#SPJ1

Answer:

When the ball is kicked, there is now an unbalanced force that acts on the ball thereby impacting an acceleration.

Explanation:

What are unbalanced forces?

We know that according to Newton's laws, an object would remain in its state of rest or a state of uniform motion unless it is acted upon by an external force. This is also known as the law of inertia.

As the ball is kept on the ground, there are two forces that act on the ball;

1) The weight of the ball that act downwards

2) The reaction force on the ball that acts upwards

The two forces are balanced hence the ball remains on the ground.

When the ball is kicked, there is now an unbalanced force that acts on the ball thereby impacting an acceleration.

Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.

Smog development and infiltration over Los Angeles. haze and air pollution in the entire community.

Burning sulfur-containing fossil fuels, particularly coal, causes sulfurous smog, also referred to as "London smog," which is characterized by a high concentration of sulfur oxides in the atmosphere.

The two primary substances in automotive exhaust are nitrogen oxides, which are created in scorching internal combustion engines, and hydrocarbons, which are derived from gasoline.

Therefore, Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.

To learn more about Smog, refer to the link:

https://brainly.com/question/15728274

#SPJ1

Answer:

the answer is 32,400

Explanation:

I looked it up for you

The average speed denotes the average rate of speed over the extent of a trip. The average speed of a car which travels 270 meters in 30 seconds is 9m/s.

The average speed can be defined as the ratio of the total distance travelled by an object to the total time taken. It is a scalar quantity. It is represented by the magnitude and does not have direction. Its SI unit is m/s.

The average speed of an object help us to calculate the rate of travel time and the distance. The average speed of an object when it covers the same distance at two different speed, X and Y is:

Average speed = 2XY/ X+Y

The equation used here to calculate the average speed is:

Average speed = Total distance / Total time

Average speed  = 270 m / 30 s = 9 m/s

Thus the average speed is 9 m/s.

To know more about average speed, visit;

https://brainly.com/question/10449029

#SPJ2

Answer:

pascal principle states that pressure exerted to a confined fluid is transmitted uniformly in all direction

The true statement is Pascal principle states that pressure exerted to a confined fluid is transmitted uniformly in all direction.

Pascal principle states that a pressure change at any point in a confined incompressible fluid is transmitted throughout the fluid such that the same change occurs everywhere.

P = F/A

Thus, the true statement is Pascal principle states that pressure exerted to a confined fluid is transmitted uniformly in all direction.

Learn more about Pascal principle here: https://brainly.com/question/4262025

#SPJ6