Can you answer it for me pls

Answer:

P = E/t

Explanation:

Answer:

The wavelength of light is 68 nm

Explanation:

Answer:

The direction angle θ of the resultant in the Polar (positive) specification is then θ = α + 60°. The Law of Cosines is used to calculate the magnitude (r) and the Law of Sines is used to calculate the angle (α).

So we want to find what causes the blower to push on you when you use it.

We will see that this happens because of Newton's third law, and the thing that is pushing the blower is the air itself.

Well, Newton's third law says that when two objects interact, they exert equal and opposite forces on each other.

In this case, the leaf blower is interacting with the air, pushing it so it can push away the leaves. But by this law, the air also exerts a force on the leaf blower (we have the interaction leaf blower- air) so the air is what "pushes" the blower, and because you are holding it, you feel that push.

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Answer:

Yes  it can A

Explanation:

Answer:

The correct choice is A. True

Explanation:

Tracking your exercise can help you stick with an exercise routine because it lets you see how you are progressing in terms of reaching your previously set goals.

Answer:

35on 5gcghh finds do go CNN chk

The mass of the object hung on the spring is 0.76 kg.

The given parameters;

The mass of the object is determined by applying Newton's second law of motion as shown below;

F = mg

where;

The mass of the object is calculated as;

[tex]m = \frac{F}{g} \\\\m = \frac{7.45}{9.8} \\\\m = 0.76 \ kg[/tex]

Thus, the mass of the object hung on the spring is 0.76 kg.

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The acceleration that Andrew experience  during his ride is 3.6m/s²

The formula for calculating centripetal acceleration is expressed as:

a = v²/r

v is the speed

r is the radius

Given the following expression

v = 6m/s

r = 10m

Substitute the given parameters into the formula

a = 6²/10

a = 36/10

a = 3.6m/s²

Hence the acceleration that Andrew experience  during his ride is 3.6m/s²

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Answer:

1

Explanation:

hydrogen has one electron therefor only being able to bond with one other

Slumped area only supports grassy vegetation and no trees can be grow on it.

A slump is a form of mass wasting that occurs when a rock layer moves at a short distance down a slope, this type of area is called slumped area. The speed of the mass movement at slumped area is slow i.e. few cm per year or meter per year.

There are no trees growing in the slumped area because trees required fixed land but the land moves at the slumped area so we can conclude that slumped area only supports grassy vegetation and no trees can be grow on it.

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Answer:

The grassy vegetation in the slumped soil indicates slow movement of material, and it appears recently enough that trees have not had time to establish themselves.

Explanation:

It likely moved gradually over a period ranging from days to years. Grassy vegetaion has been able to establish on the surface without any breaks or open soil visible, this is evidence of the gradual movement.

Answer:

yes because it caries a message on ecological and evolutionary assembly of the classified vegetation and flora. Its known to be called a Vegetation map or Vegetation Mapping.

Explanation:

Rachel is a fitness instructor in a senior living community, so the population is over 55. she is always sure to include a lot of balance exercises into her classes. Falls are particularly dangerous for older people. thus option B is correct.

physical activity or doing exercise leads to improve the strength of muscle, workout  maintain the level of oxygen and vitamins for  tissues and allows the proper functioning of cardiovascular device, when the heart and lung fitness enhance, energy will be enhanced.

The specificity, progression, overload, variation, and reversibility practicE are the crucial parts which are needed to improve your performance.

The training or doing exercise can help in development in fitness application are overload, progression, and specificity,  increase the repetitions, a quantity of weight, or length of time in an exercise you are familiar with, you are making use of overload.

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Answer:136 kj

Explanation:

If a system does 31.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change in the internal energy of the system, in kJ

the system spent 32.0 kj in work and 105 kj in heat, so it spent a total of

31 +105 =136 kj

Answer:

wavelength

Explanation:

wavelength is the distance from crest to crest or from trough to trough. The wavelength can also be thought of as the distance a wave has traveled after one complete cycle—or one period

https://youtu.be/tJW_a6JeXD8

During a single period, the distance traveled by a wave is one wavelength. The correct option is b.

The distance between identical points (adjacent crests) in adjacent cycles of a waveform signal propagated in space or along a wire is defined as the wavelength.

This length is typically specified in wireless systems in meters (m), centimeters (cm), or millimeters (mm) (mm).

The wavelength is the distance between two wave crests, and it is also the distance between two wave troughs.

The frequency is measured in cycles per second and is the number of vibrations that pass over a given spot in one second (Hertz).

The color of light is determined by its wavelength, and the pitch of sound by its wavelength.

The wavelengths of visible light range from approximately 700 nm (red) to 400 nm (violet). The wavelength of audible sound is approximately 17 mm to 17 m.

Thus, the correct option is b.

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Your question seems incomplete, the missing options are:

A) one-half wavelength.

B) one wavelength.

C) two wavelengths.

Answer:

Kinetic energy is best described as the energy of motion.

Explanation:

Just a cheerful teen willing to help,

wishing you a splendiferous rest of the day,

stay salty...

Kinetic energy is best described by the energy of motion. The correct option is option (A).

The kinetic energy is described as,

Kinetic energy = 1/2*mass*velocity²

The kinetic energy is the energy that acts when an object is in motion. It is characterized as the work necessary to move an object from a state of rest to its present velocity. From the equation, the square of the velocity and mass is directly proportional to the kinetic energy. The kinetic energy is a scalar quantity and its SI unit is joules.

Hence, the correct option is (A).

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Answer:

D

Explanation:

D.  Does he really enjoy it and does he have any future goals?

Answer:

radio waves

Explanation:

radio waves have lower frequency than visible light

Answer:

In the previous section, we defined circular motion. The simplest case of circular motion is uniform circular motion, where an object travels a circular path at a constant speed. Note that, unlike speed, the linear velocity of an object in circular motion is constantly changing because it is always changing direction. We know from kinematics that acceleration is a change in velocity, either in magnitude or in direction or both. Therefore, an object undergoing uniform circular motion is always accelerating, even though the magnitude of its velocity is constant.

You experience this acceleration yourself every time you ride in a car while it turns a corner. If you hold the steering wheel steady during the turn and move at a constant speed, you are executing uniform circular motion. What you notice is a feeling of sliding (or being flung, depending on the speed) away from the center of the turn. This isn’t an actual force that is acting on you—it only happens because your body wants to continue moving in a straight line (as per Newton’s first law) whereas the car is turning off this straight-line path. Inside the car it appears as if you are forced away from the center of the turn. This fictitious force is known as the centrifugal force. The sharper the curve and the greater your speed, the more noticeable this effect becomes.

Figure 6.7 shows an object moving in a circular path at constant speed. The direction of the instantaneous tangential velocity is shown at two points along the path. Acceleration is in the direction of the change in velocity; in this case it points roughly toward the center of rotation. (The center of rotation is at the center of the circular path). If we imagine Δs becoming smaller and smaller, then the acceleration would point exactly toward the center of rotation, but this case is hard to draw. We call the acceleration of an object moving in uniform circular motion the centripetal acceleration ac because centripetal means center seeking.

hope it helps! stay safe and tell me if im wrong pls :D

(brainliest if you want, or if its right pls) :)

Answer:

sense we see what gases can do to earth we have made progress to keep it habitable buy solar panels water energy and using as lil of waste material as possible

Explanation:

Answer:

yes makes sense

Explanation:

Answer:

The answer is "A"

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The force of gravity affects the upward motion of the ball causing a decrease in the velocity and acceleration of the ball as it moves upwards.

The motion of a ball thrown across a room is affected by force of gravity which causes the ball to fall to the floor.

The velocity of the ball decreases as the ball moves upwards and eventually becomes zero at maximum height, which starts to increase again as the ball begins fall down.

The acceleration of the ball is directed downwards during the motion.

Thus, we can conclude that the force of gravity affects the upward motion of the ball causing a decrease in the velocity and acceleration of the ball as it moves upwards.

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Answer:

Explanation:

A 2,500 watts

24 cells 0.5V are required to create a 12volts battery

2.5 cells 0.2A is required to create a 12volts battery

Let the number of 0.5volts cells required to create a battery of 12Volts be x

Let the number of 0.2A cells required to create a current of 0.5A be y

To get the value of "x", we will use the expression:

[tex]0.5x = 12\\x=\frac{12}{0.5}\\x = 24[/tex]

This shows 24 cells 0.5V are required to create a 12volts battery

To get the value of "y", we will use the expression:

[tex]0.2y = 0.5\\y=\frac{0.5}{0.2}\\y = 2.5[/tex]

This shows 2.5 cells 0.2A is required to create a 12volts battery

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