A buffer system is set up with [ha] = 2[a-]. if pka = 5.5, what is the ph of the buffer?

Answer:

The answer is D because when the faults move that is the tectonic plates moving. So earth quakes will be forming when the fault moves.

Explanation:

Answer:

Reaction is 20N.

Explanation:

In general, Newton's third law of motion explains that when a force is applied on an object, a reaction of equal magnitude applies in the reverse direction of the force.

i.e F = -R

This implies that, reaction is a force in the opposite direction to that of the force applied.

Force can also be related to the weight of an object as;

F = W = mg

Thus to prevent the 20N stone from falling, a force of 20N is applied in the opposite direction. So the reaction, R is 20N.

Answer:

The three forms of water are gas, liquid, and ice, I'm not sure if these were mentioned in the passage since you did not attach a picture.

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Answer:

A magnet has a field having lines of force around it that moves through the air which is a nonpermeable medium that allows the passage of magnetic field lines of force. The cardboard is a similar nonpermeable medium and the magnetic lines of force pass through to induce magnetism in the iron nail which is a ferromagnetic material that becomes magnetized by the magnetic field from the magnet

The induced magnetism in the iron nails causes the reverse poles to form in the iron with the iron domain's induced north pole pointing in the direction of the south pole of the magnet and vice versa

The iron nail is then attracted to the magnet as like poles attract, thereby holding the iron nail in place with the cardboard in between, without direct contact between the nail and the magnet as the cardboard prevents the magnet from touching the iron nail held in place

Explanation:

Answer: Some elements like potassium, uranium, and thorium are naturally radioactive and give off gamma rays as they decay, but all elements can be excited by collisions with cosmic rays to produce gamma rays. The HEND and Neutron Spectrometers on GRS directly detect scattered neutrons, and the Gamma Sensor detects the gamma rays.

Explanation: searching

Answer:

A

Explanation:

so it would have the most kinetic energy when it is the fastest and that would be right before it lands becasuse gravity has been accelerating it the whole time so A.

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Since the elevator is moving at a constant speed, the only forces acting on it are gravity and the tension force that the rope that pulls it up places on it.

What does elevator cable tension mean?

Total tension is equal to the weight plus the force of acceleration when lift is upward. Total tension equals the difference between weight and  force caused by acceleration as lift decreases.

The force communicated through a rope, string, or wire when two opposing forces draw on it is known as tension. The tension force draws energy equally on the bodies at the end and is applied along the length of the wire.

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Answer:

too much :(

Explanation:

\overline{a} = \frac{v - v_0}{t} = \frac{\Delta v}{\Delta t}

\overline{a} = average acceleration

v = final velocity

v_0 = starting velocity

t = elapsed time

Answer:

a = Δv⁄t.

Explanation:

The given statement is false because a telescope having an 8-inch mirror will collect four times as much light as a telescope having a 4-inch mirror.

A telescope is a tool that is used by astronomers to see faraway objects and items. Telescopes operate by using curved mirrors to obtain and focus light from the night sky.  To put it simply, telescopes are tools that gather and magnify light from distant objects.

A telescope with an 8-inch mirror size is capable of gathering about 4 times as much light as a telescope with a 4-inch mirror. That is why the given statement is stated as false.

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The strength of the magnet pole (option D) will not be affected by the induced electromotive force (e.m.f) when a magnet is in motion relative to a coil.

When a magnet is in motion relative to a coil, it induces an electromotive force (e.m.f) in the coil due to the changing magnetic field. This induced e.m.f. can cause various effects, but it does not directly affect the strength of the magnet pole (option D). Option A, the motion of the magnet, is directly related to the induction of the e.m.f. When the magnet moves, the magnetic field through the coil changes, inducing the e.m.f.

Option B, the resistance of the coil, affects the amount of current flowing through the coil when the e.m.f is induced. Higher resistance can limit the current flow. Option C, the number of turns of the coil, affects the magnitude of the induced e.m.f. More turns increase the induced voltage.

However, the strength of the magnet pole (option D) itself is independent of the induced e.m.f. It is determined by the properties of the magnet, such as its magnetization and magnetic material. The induced e.m.f does not alter the intrinsic strength of the magnet pole.

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The correct answer of terrestial weather:

The solar insolation in the visible and infrared regions of the solar electromagnetic spectrum is much more than the energy that space weather occurrences release into the troposphere and stratosphere. Despite claims to the contrary, there may be some connection between the Earth's climate and the 11-year sunspot cycle. There is no proof of this. For instance, it has frequently been suggested that the Maunder minimum, a 70-year period almost devoid of sunspots, is correlated to a cooler climate, but these correlations have vanished after further research. Changes in cosmic ray flux are hypothesized to affect how much cloud formation occurs.

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Answer:

32m/s

Explanation:

obtained from V=vx square roo+ vy square root but all terms are squared.

Chester will need to exert a force of 120 Newtons to accelerate the cart at a rate of 1.2 m/s^2, neglecting the mass of the cart and assuming there is no friction.

To determine the force exerted by Chester to accelerate the cart, we can utilize Newton's second law of motion, which states that the force acting on an object is equal to the product of its mass and acceleration. In this scenario, the mass of the cart itself is neglected, so the total mass to consider includes the two 50 kg sacks, resulting in a total mass of 100 kg.

Newton's second law can be expressed as F = m * a, where F is the force, m is the mass, and a is the acceleration. Substituting the given values, we have:

F = (100 kg) * (1.2 m/s^2) = 120 N

Therefore, Chester will need to exert a force of 120 Newtons to accelerate the cart at a rate of 1.2 m/s^2, neglecting the mass of the cart and assuming there is no friction. This force will provide the necessary push to overcome the inertia of the combined mass and achieve the desired acceleration. However, it is important to note that in real-world scenarios, additional factors such as friction and air resistance would need to be considered, which may require greater force exertion by Chester to achieve the desired acceleration.

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The effects of gravity if we were dropped out in space is the feeling of weightlessness.

This is defined as the universal force of attraction acting between all matter.

In space, there is no ground to push against astronauts hence the feeling of weightlessness by the astronauts which was why it was chosen as the nost appropriate choice.

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Answer:

It is the length from the midpoint to the crest.

Explanation:

hand over hand steering.

When turning corners, use the hand-over-hand or grip and slide method. Do not turn the wheel with only the palm of your hand. Letting the wheel slip through your fingers could be dangerous.

Hand-over-hand steering is also useful when maneuvering in a space with limited view, such as perpendicular parking in a congested shopping center. When using hand-over-hand steering, quick movements of the hands are recommended on entry to the maneuver, with smooth slow movements when returning the wheel upon completion of the maneuver.

Hand-over-hand steering is appropriate when the speed of steering is critical, such as with skid recovery in a rear-wheel traction loss.

When making a slight turn, keep both hands in the same position on the wheel, making only slight finger or wrist adjustments as necessary to maintain your path of travel.

However, when moving through a turn, the hands may move up to 165 degrees (neither hand moves beyond the 6 or 12 o'clock positions).

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Answer:

Is Mercury an answer on your thing?

Explanation:

Mercury has the least amount of gravity, so therefore you can jump the highest on Mercury.

Answer:

Jupiter

Explanation:

Jupiter has more than 300 time the mass as earth. so, it's gravitational pull is stronger.

Hopefully this helps

20 - 5 = 15

total displacement = 15 meters

The buoyant force on an object is equal to the weight of the fluid displaced by the object.

When a body is partly or completely immersed in water (or any other liquid), then according to archimedes principle.

Loss in weight of body = Weight of water (liquid) displaced by the body = Buoyant force or upthrust exerted by water (any liquid) on the body.

Hence, the relationship between buoyant force and the weight of liquid displaced is that they are equal

what is buoyant force?

The upward force, or buoyant force, that acts on an object in water is equal to the weight of the water displaced by the object.

Any object that is in water has some buoyant force pushing up against gravity, which means that any object in water loses some weight.

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In the peak of summer, it hasn't rained in a week, and the plants are looking rough, so watering the plants for an hour is a good idea.

However, the next day, you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. Plants absorb water through their roots. The root system of a plant is responsible for drawing water and nutrients from the soil. A plant's root system must be able to absorb water quickly in order for the plant to grow and thrive. When the soil around the root system is dry, the roots will stop growing and will not be able to absorb water.

It may even start to die. Watering plants during the peak of summer is important because it will help keep the soil moist and prevent the roots from drying out. However, watering a plant too much can be harmful. If a plant is overwatered, the water may not be able to penetrate the soil and reach the roots. Instead, it may just sit on top of the soil, causing the roots to rot and die. This can cause the plant to wilt and die.To summarize, if the soil around the plant is too dry, the roots may not be able to absorb the water you gave them, causing the plant to look worse than before. Conversely, overwatering can also be harmful because the water may not be able to penetrate the soil and reach the roots, causing the roots to rot and die.

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Answer:

amp = 5 and wavelength = 6

Explanation:

Answer:1 7/25

Explanation:take the total distance7.3-4.1 then divide by the total time taken

The average velocity of the object is equal to -1.28m/s relative to the origin when it moves for 2.4 seconds.

Average velocity is a vector quantity and is defined as the change in position (∆x) divided by the time intervals (∆t) in which it occurs. The average velocity can be positive or negative and the S.I. unit of average velocity is m/s.

The average velocity of an object = ∆x/∆t

The average velocity of an object involves only the displacement of the object. However, the magnitude of the displacement of an object can be different from the actual path length.

Given, the displacement of the object = final position - initial position

∆x = 4.1 - 7.3 = -3.2m

The time, ∆t = 2.5 - 0 = 2.5 s

The average velocity of the object = ∆x/∆t = -3.2/2.5 = -1.28 m/s

Therefore, the average velocity of the object is -1/28 m/s relative to origin.

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Answer:

Net force/.612=acceleraton

Explanation:

Need more information for a specific answer. I derived this general equation using newton's second law: F=MA. The acceleration of the object is calculated by dividing the net force on the object by its mass.

A transverse wave is a wave in which particles of the medium move in a direction perpendicular to the direction that the wave moves. Suppose that a slinky is stretched out in a horizontal direction across the classroom and that a pulse is introduced into the slinky on the left end by vibrating the first coil up and down. Energy will begin to be transported through the slinky from left to right. As the energy is transported from left to right, the individual coils of the medium will be displaced upwards and downwards. In this case, the particles of the medium move perpendicular to the direction that the pulse moves. This type of wave is a transverse wave. Transverse waves are always characterized by particle motion being perpendicular to wave motion.

A longitudinal wave is a wave in which particles of the medium move in a direction parallel to the direction that the wave moves. Suppose that a slinky is stretched out in a horizontal direction across the classroom and that a pulse is introduced into the slinky on the left end by vibrating the first coil left and right. Energy will begin to be transported through the slinky from left to right. As the energy is transported from left to right, the individual coils of the medium will be displaced leftwards and rightwards. In this case, the particles of the medium move parallel to the direction that the pulse moves. This type of wave is a longitudinal wave. Longitudinal waves are always characterized by particle motion being parallel to wave motion.

Answer:

rotation

Explanation:

Im pretty sure. Please heart and mark brainliest

Answer:

cycle

Explanation:

either rotation or cycle. I would think.

A constant force of 1.25N

Explanation:

This is a kinematics problem.

First find acceleration,

then use F = ma to find force.

Given:

mass = .5kg

delta x = 20m

t = 4s

a = ?

Friction = 0

From the kinematics equations:

delta x = Vi + (1/2)at^2

Plug in terms that are given:

20m = 0 + (1/2)a(4^2)

(2*20m)/(16s^2) = a

40m/(16s^2)= 2.5m/s^2

Now use F = ma to find force exerted on object.

F = (0.5kg)*(2.5m/s^2)

F = 1.25N