a ball is thrown straight up at an initial velocity of 10m/s. at what point is the acceleration greatest?

The magnitude of the force of the object which has the power of 4 watts and a velocity is 2 m/s is 2N.

The power of the object = 4 Watts

The velocity of the object = 2 m/s

The force of the object can be found using the formula,

               P = Fv

where P is the power

           F is the force

           v is the velocity

Let us rearrange the equation,

              F = P/v

Let us substitute the known values in the above equation, we get

              F = 4 / 2

                  = 2 N

The magnitude of the force of the object is 2N.

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that's happening ?????

The correct answer is B) 24 volts and 150 ampere-hours.

In the illustration EL-0107, the battery bank has two 12-volt batteries connected in series, resulting in a terminal voltage of 24 volts.

The batteries are also rated at 75 ampere-hours each, and when connected in series, the ampere-hour capacity remains the same at 75 ampere-hours for the entire battery bank.

The batteries in the illustration are rated at 75 ampere-hours each, which means that they can deliver 75 amperes of current for one hour, or 37.5 amperes of current for two hours, and so on.

When connected in series, the ampere-hour capacity of the battery bank remains the same as that of a single battery, which is 75 ampere-hours.

Therefore, the total capacity of the battery bank is 24 volts and 75 ampere-hours, which means that it can deliver 75 amperes of current for one hour at 24 volts, or 37.5 amperes of current for two hours at 24 volts, and so on.

In summary, when two batteries are connected in series, the voltage is doubled, while the ampere-hour capacity remains the same. In the given illustration, two 12-volt batteries are connected in series, resulting in a terminal voltage of 24 volts and an ampere-hour capacity of 75 ampere-hours.

Therefore, the correct answer to the question presented is B) 24 volts and 150 ampere-hours.

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That's true.

They're radio waves, at the frequency of 2.45 GHz (in all microwave appliances manufactured in the US).

Answer:

3000J

Explanation:

- formula work done is force x perpendicular distance.

- convert 20cm to m, so 20 divide by 100 equals 0.2.

- since there is 20 stairs, 20 multiply by 0.2m.

- lastly, 750N x 4m equals 3000J

You should begin viewing a specimen with the 10X objective lens that is false.

An optical device known as a lens uses refraction to focus or disperse a light beam. A compound lens is made up of multiple simple lenses (elements), typically aligned along a common axis, as opposed to a simple lens, which is one solid piece of transparent material. Glass or plastic are used to make lenses, which are then polished or molded into the required shape. In contrast to a prism, which just refracts light without focusing it, a lens can focus light to create an image. In addition to focusing visible light, lenses can also be used to disperse various types of waves and radiation, such as explosive, microwave, electron, and acoustic waves.

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Answer:

B. responsibility

Explanation:

      Maybe this graph can help?

Answer:

Explanation:

Mass = 50kg +7kg +4kg =61 kg

Velocity = 3m/s

Momentum = mass × velocity

\(p =61\times 3\\\\p =183MLT^-^1\)

Answer:

Mass= 61 kg. Success to The homework.

Answer:

.

Explanation:

Answer:

do sports eg skipping rope, playing basketball, badminton etc. in other words, activities that involve jumping

Answer:

0.16239316239316239316239

Explanation:

ang haba nang solve ko dito hehe

The mass of the bar is 2800 grams. To find the mass of the bar, we can use the slope of the best-fit line in the plot of x versus 1 \(m^2\) + mhook. The slope of the line represents the ratio of the applied force (F) to the displacement (x) according to Hooke's law: F = kx, where k is the spring constant.

In this case, the displacement x corresponds to 1 \(m^2\)+ mhook, and the applied force F corresponds to the mass of the bar (mbar) multiplied by the acceleration due to gravity (g).

Given that the slope of the line is 2800 cm · g, we can set up the equation as follows:

2800 cm · g = (mbar * g)

By canceling out the g on both sides, we have:

2800 cm = mbar

Since the mass is usually measured in grams, we can convert centimeters to grams by considering the density of water (1 g/cm^3) and the volume of the bar.

Assuming the bar has a uniform density, we can use the formula for the volume of a cylinder:

Volume = pi * (radius\()^2\) * length

Given that the bar is 80.0 cm long, we need to determine its radius. The radius is half the length of the bar, so the radius is 40.0 cm.

Plugging in these values, we have:

Volume = pi * (40.0 cm)^2 * 80.0 cm = 128,000 pi \(cm^3\)

Since 1 \(cm^3\) of water weighs 1 gram, the mass of the bar is:

mbar = 2800 cm = 2800 g

Therefore, the mass of the bar is 2800 grams.

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Conductors are materials that allow electrical charges to flow through them easily, such as metals, while insulators are materials that resist the flow of electrical charges and do not conduct electricity, such as rubber or plastic.

Conductors and insulators are two types of materials with very different electrical properties. Conductors allow electricity to flow freely through them, while insulators prevent the flow of electricity. Conductors have a low resistance to electrical flow, while insulators have a high resistance.

Examples of conductors include metals like copper and aluminum, as well as water and human tissue. Examples of insulators include rubber, plastic, glass, and air. Conductors are commonly used in electrical wiring and circuits, while insulators are used to protect people and equipment from electric shocks and to prevent electrical interference.

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The Aurora Borealis, also known as the Northern Lights, is normally only seen in the most northern regions, like Canada, Alaska & the North Pole. However, in 1859, there was a geomagnetic storm so big the Aurora Borealis was seen as far SOUTH as the United States, Japan, and Australia.

The Aurora Borealis are spectacular lights that are seen in the polar regions.

These lights are produced as a result of interaction between solar winds and the earth's magnetic field.

The solar wind emits from the sun's corona and contains charged particles traveling at a speed of 400 miles/second.

When these charged particles collide with the atoms and molecules of the atmosphere after entering into Earth's magnetic field they produce lights in the northern and southern poles. Big Aurora Borealis is also called geometric storms.

To put it simply, auroras are produced by the collision of different atomic particles such as green and red lights formed by oxygen, blue, pink, and violet lights by nitrogen and helium particles emitting purple light.

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5,28 ft is the distance from the base of the cliff to the point on the ground.

This question is incomplete, it should be:

Height of the cliff = 462 ft

Angle of depression = 5°

Determine the angle of the base first,

Use the hypotenuse side:

90° - 5° = 85°

Hence, the angle of depression form the top of the cliff = 5°

So, the distance from the base of the cliff to the point on the ground:

tan α = opposite / adjacent

tan 85° = h/462

h = 462 × tan 85°

= 462 x 11.43

h ≈  5,28 ft

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Answer:

Scalar quantity

Explanation:

Scalar quantities are measurements that consist of only a magnitude which is measured in numbers only. For example speed is a magnitude because it measures how fast something is going.

Vector quantities are measurements that include a magnitude and direction which means there is a number measurement and a direction associated with that measurement. For example, velocity is a vector quantity because there is a measurement of speed, and it also includes the direction of the speed.

Answer:

Yes

Explanation:

I love THAT SONG. And it is a good essay.

Answer: ( yes i do like your essay! )

I am breaking down in tears. /j

I should've expected this and i still fell for it  

That's a parallel circuit. (B)

When current from Point-A reaches the 3-way intersection just to the right of Point-B, it has to make a choice:  Either turn left, go through B, and light the lower bulb, or go straight and light the upper bulb.

A circuit that has any "decision" points in it is a parallel circuit.  What happens in the real world is:  The current splits up.  Some of the current that reaches the intersection turns left toward Point-B, and the rest of it goes straight up.

A series circuit is one in which there's only one possible path all the way around.  There are no intersections of more than 2 roads, and no electron ever has to decide which way to flow.

An open circuit is one in which there's a break somewhere along the line and electrons can't jump across it.  It's like a railroad where a big piece is cut out of the track somewhere.  So no trains can travel on that route, and there's no current flowing anywhere in the circuit.

I'm not so sure about a "combination" circuit.  I guess you could give that name to a complicated circuit that has some series parts and some parallel-parts.  Personally, I'd call that a "series-parallel" circuit.  But it really doesn't matter right now.  Whatever the word means, the circuit in the picture is definitely not a "combination" circuit.

Answer:

B. Parallel Circuits

Explanation:

A parallel circuit is constructed by connecting the terminals of all the individual load devices so that the same value of voltage appears across each component. In a parallel circuit, charge divides up into separate branches such that there can be more current in one branch than there is in another.

hope i helped

Answer: The energy to move the fluid is provided by the pressure on the fluid surface.

Explanation:  The frictional losses in the suction pipework and rises in the suction pipework system will reduce the fluid pressure at the pump inlet. If the pump inlet connection is removed the fluid will not flow out of the suction pipework. Hope this helps! :)

A scientific theory is an explanation for why natural phenomena occur. It is based on a large amount of evidence and has been thoroughly tested. It is not the same as an untested speculation. Theories can describe specific relationships, such as Newton's law of gravitation, which explains the attraction between two objects based on their mass and distance from one another.

Theories are not absolute, however, and have certain exceptions for a prescribed range of conditions. For example, Newton's law of gravitation is not accurate for very small or very massive objects or for objects that are very close together. Theories are an important part of science and are essential for understanding the natural world.

They provide explanations for observed phenomena and guide further research to deepen our understanding of the universe. Theories can also be modified or replaced when new evidence emerges that challenges their validity. Overall, scientific theories are based on empirical evidence and are the most widely accepted and reliable explanations for why natural phenomena occur.

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The plane travels a distance of 325 miles if the airplane travels for 2.5 hours at an average speed of 130 miles per hour. Using the distance formula (d = rt), we can calculate the distance.

To find the distance traveled by the airplane, we can use the distance formula, which is represented as d = rt. In this formula, "d" represents the distance, "r" represents the rate or speed at which the object is traveling, and "t" represents the time taken for the travel.

Given that the airplane travels for 2.5 hours at an average rate of 130 miles per hour, we can substitute these values into the formula. The rate of the airplane is 130 miles per hour, and the time taken is 2.5 hours.

Using the formula, we can calculate the distance traveled as follows:

d = rt

d = 130 mph × 2.5 hours

Multiplying the rate (130 mph) by the time (2.5 hours) gives us:

d = 325 miles

Therefore, the airplane travels a distance of 325 miles during the 2.5 hours of travel at an average rate of 130 miles per hour.

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Answer:

I need help with the same question

Explanation:

Answer:

Speed is a scalar quantity – it is the rate of change in the distance travelled by an object, while velocity is a vector quantity – it is the speed of an object in a particular direction.

Answer:

0.925 m

Explanation:

As the seesaw is balanced, the torque ( = Fd)of both should be the same

So, 240 * d = 185 * 1.2
(Assuming d is the distance from Christopher to the balance point)

Solving for d, we get d = 0.925 m

An example of the scenario where Bob would need to calculate the net force will be when there's someone going down on a water slide.

The net force refers to the sum of the forces that act on an object. Net force is vital for the acceleration of mass.

For example, when we kick a football, the ball takes off and then moves through the air. In this case, a net force acts on the football.

Also, when there's someone going down on a water slide, the net force can be calculated.

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Answer:

630 km.

Explanation:

To obtain the total distance travelled by David, we shall calculate the distance travelled in each, then sum them together.

Case 1:

Speed 1 (S₁) = 65 km / hour

Time 1 (t₁) = 6 hours

Distance 1 (d₁) =?

Speed = Distance /time

S₁ = d₁ / t₁

65 = d₁ / 6

Cross multiply

d₁ = 65 × 6

d₁ = 390 Km

Case 2:

Speed 2 (S₂) = 80 km / hour

Time 2 (t₂ ) = 3 hours

Distance 2 (d₂) =?

Speed = Distance /time

S₂ = d₂ / t₂

80 = d₂ / 3

Cross multiply

d₂ = 80 × 3

d₂ = 240 Km

Finally, we obtained the total distance travelled by David as follow

Distance 1 (d₁) = 390 Km

Distance 2 (d₂) = 240 Km

Total Distance travelled (dₜ) =?

Total distance = distance 1 + distance 2

dₜ = d₁ + d₂

dₜ = 390 + 240

dₜ = 630 km

Therefore, the total distance travelled by David is 630 km

Answer:Electricity is the flow of electrons. All matter is made up of atoms, and an atom has a center, called a nucleus. When electrons are "lost" from an atom, the free movement of these electrons constitutes an electric current. Electricity is a basic part of nature and it is one of our most widely used forms of energy.

Explanation:

Answer:

Explanation:

Answer:

the elephant would hit first

Explanation:

the elephant would hit first because it has a greater mass than the feather does