A projectile is fired vertically from Earth's surface with an initial speed of 3.8 km/s. Neglecting air drag, how far above the surface of Earth will it go

Answer:

See below

Explanation:

Sp Ht = J / kg-C  =   11 000 J / (.25 kg * 10 C) = 4,400  J/ kg °C

Answer:

Magnetic field

Explanation:

Answer:

magnetic field

Explanation:

Answer:

Sound coming from the speaker would reach your left ear faster and be louder than the sound that reaches your right ear.

Explanation:

Just an example

Answer:

differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through the air and solid materials but also through the vacuum of space.

Explanation:

This means that electromagnetic waves can travel not only through the air and solid materials but also through the vacuum of space.

Collected data plays a crucial role in evaluating whether the criteria for success have been met. By analyzing the collected data, one can assess the progress made towards achieving the desired goals and determine if the criteria have been fulfilled.

Data provides an objective measure of performance or outcomes, allowing for an evidence-based assessment of success. It helps to quantify and track key metrics or indicators related to the criteria for success. By comparing the actual data with the predetermined benchmarks or targets, one can determine if the criteria have been met or if further improvements are required.

Data analysis also enables the identification of trends, patterns, and correlations, providing insights into the factors influencing success. It helps in identifying areas of strength and areas that need improvement. Additionally, data can be used for comparative analysis, benchmarking against previous periods or similar projects, to gain a broader perspective on success.

In summary, collected data provides an objective basis for evaluating progress and success by comparing actual performance against predetermined criteria, identifying areas of improvement, and gaining insights for future decision-making.

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Answer:

I would say vitamin B-6

Explanation:

it is also known as pyridoxine. it helps ebzymes break down protein and carry the dismantled amino acids to the blood stream

Hope this helps ✌✌

Answer:

The body needs small amount of vitamin B-6 to help enzymes break down protein and carry the dismantled amino acids to the blood stream.

Answer:

KINETIC ENERGY=K.E=0.00245 Joules ≈ 0.003 Joules

Explanation:

mass=m=0.1g=0.0001kg

velocity=v=7.0m/s

kinetic energy=K.E.=?

as we know that

\(kinetic energy=\frac{1}{2}mv^2\\ putting values\\kinetic energy=\frac{1}{2}(0.0001kg)(7.0m/s)^2\\ kinetic energy=\frac{1}{2} 0.0049joules\\kinetic energy= 0.00245Newton meter or joules\)

hope it will help ^_^

The thrust of the jet engine is 59804 N and the delivered power is 1.388 MW.

Thrust is defined as the amount of effort required to move an airplane through air that is resisting its passage called drag. Newton's Second and Third Laws could be used to quantitatively explain the reaction force of thrust.

Given

Speed = 232 m/s

Air intake =117 kg/s

Fuel burn rate = 4.8 kg/s

Speed of exhaust gas = 723 m/s

Rate of mass change = 117 kg/s + 4.8 kg/s

                                   = 121.8 kg/s

Thrust T = 121.8 x 723 - 121.8 x 232

Thrust T = 88061.4 - 28257.6

Thrust T = 59804 N

Delivery power = 232 x 59804

Delivery power = 1.388 MW

Thus, the thrust of the jet engine is 59804 N and the delivered power is 1.388 MW.

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Answer:

I'm pretty sure that the answer is A

Answer: hello options related to your question is missing attached below is the missing part of your question

answer: No charge of the length of the bonds expected because the rod did not touch the charge source ( option A )

Explanation:

When the Charge is first, Furthest away and second  and closest to the source charge. The spring like bonds can be said to have No charge of the length  of the bonds expected because the rod did not touch the charge source when Furthest away the bond with charge will be less effective

The atom is the smallest part of a substance that can take part in a chemical reaction.

The atom is the smallest part of a substance that can take part in a chemical reaction. Let us now address the atoms individually.

Oxygen;

Mass number = 16

Atomic number = 8

Number of protons = 8

Number of electrons - 13

Number of neutrons = 16 -8 = 8

Helium

Mass number = 4

Atomic number = 2

Number of protons = 2

Number of electrons - 13

Number of neutrons = 4 -2 = 2

Carbon

Mass number = 12

Atomic number = 6

Number of protons = 6

Number of electrons - 6

Number of neutrons = 12 - 6 = 6

Aluminum

Mass number = 27

Atomic number = 13

Number of protons = 13

Number of electrons - 13

Number of neutrons =27 - 13 = 14

Calcium

Mass number = 40

Atomic number = 20

Number of protons = 20

Number of electrons - 20

Number of neutrons =40 - 20=20

Sodium

Mass number = 23

Atomic number = 11

Number of protons = 11

Number of electrons - 11

Number of neutrons =23 - 11 = 12

Potassium

Mass number = 39

Atomic number = 19

Number of protons = 19

Number of electrons - 19

Number of neutrons =39 - 19 = 10

Nitrogen

Mass number = 14

Atomic number = 7

Number of protons = 17

Number of electrons - 7

Number of neutrons =14 - 7 = 7

Silicon

Mass number = 28

Atomic number = 14

Number of protons = 14

Number of electrons - 14

Number of neutrons =28 - 14 = 14

Iron

Mass number = 56

Atomic number = 26

Number of protons = 26

Number of electrons - 26

Number of neutrons =56 - 26 = 30

Hydrogen

Mass number = 2

Atomic number = 1

Number of protons = 1

Number of electrons - 1

Number of neutrons =2 - 1 = 1

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The phenomenon of redshift, which occurs when the light waves emitted from an object are stretched out, causing the wavelengths to become longer and the frequency to decrease.

This can occur when the object is moving away from the observer at high speeds, as in the case of the distant cloud of gas and dust. The longer wavelengths are less affected by the stretching, and therefore appear more intense, while the shorter wavelengths are more affected and appear dimmer. This effect is known as the Doppler shift and is a fundamental concept in astronomy and cosmology.

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Answer:

y = m x + b      is the equation for a straight line

s = v t       is in this format (b or distance = zero at start)

v = m is the slope  of the line and of course, t is the x-axis and s the y-axis

The area under the curve represents v / 2 * t which is the average speed multiplied by the time traveled

Autosomes are homologous chromosomes i.e. chromosomes which contain the same genes (regions of DNA) in the same order along their chromosomal arms. The chromosomes of the 23rd pair are called allosomes consisting of two X chromosomes in most females, and an X chromosome and a Y chromosome in most males.

Answer:

3 meters

Explanation:

Velocity = displacement/time

Displacement=velocity×time

As, time from 7 to 8 is 1 sec. And velocity increases from 0 to 3 m/s

So, Displacement = 3×1

=3m

Please give me brainlist.

The term used to describe the turning force exerted when pushing an object is effort.

The is the input force or force applied at one point of a lever in order to overcome a load.

The relationship between effort, load and mechanical advantage of a lever is given as;

M.A = L/E

where;

Thus, the term used to describe the turning force exerted when pushing an object is effort.

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Answer:

\(118\; \rm Hz\).

Explanation:

The frequency \(f\) of a wave is equal to the number of wave cycles that go through a point on its path in unit time (where "unit time" is typically equal to one second.)

The wave in this question travels at a speed of \(v= 295\; \rm m\cdot s^{-1}\). In other words, the wave would have traveled \(295\; \rm m\) in each second. Consider a point on the path of this wave. If a peak was initially at that point, in one second that peak would be

How many wave cycles can fit into that \(295\; \rm m\)? The wavelength of this wave\(\lambda = 2.50\; \rm m\) gives the length of one wave cycle. Therefore:

\(\displaystyle \frac{295\;\rm m}{2.50\; \rm m} = 118\).

That is: there are \(118\) wave cycles in \(295\; \rm m\) of this wave.

On the other hand, Because that \(295\; \rm m\) of this wave goes through that point in each second, that \(118\) wave cycles will go through that point in the same amount of time. Hence, the frequency of this wave would be

Because one wave cycle per second is equivalent to one Hertz, the frequency of this wave can be written as:

\(f = 118\; \rm s^{-1} = 118\; \rm Hz\).

The calculations above can be expressed with the formula:

\(\displaystyle f = \frac{v}{\lambda}\),

where

Answer:

118

Explanation:

The normal force is  161 N, the coefficient of friction is 0.62 and the acceleration is 11.68 m/s^2.

Given that;

Fa = Ff + mgsinθ

Where; Ff =μk FN

Fa = μk FN + mgsinθ

But FN = mgcosθ

Fa = μk mgcosθ + mgsinθ

Since the normal force = mgcosθ, we have;

FN = 25 kg × 10 × cos(50°)

FN = 161 N

For the coefficient of friction;

Ff =  μkFN

μk = Ff/FN

μk = 100N/161 N

μk = 0.62

To obtain the acceleration

Fa = Ff + mgsinθ

Since Ff = 100 N, then

Fa = 100 N + (25 × 10 × sin 50°)

Fa = 292 N

Since;

Fa = ma

a = Fa/m

a = 292 N/25 kg

a = 11.68 m/s^2

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Answer:drfdcfrfvgtgy6hbhhbhyg vcfrfr5tgvcfrtg vcdftghegthetrgbdgtthethe3thet

Explanation:

Sdwerftyrujtnyhbvcrdefgswthyujdehrtgfyhrjfuygtdhjueyrtgehwu3y4tgrehjwheyrgdhbnsjhfgvbdnhgfdhjsdehbrvbdensdvfgreyhsdgrftyhedggrfdhsgfv

The ball will hit the ground with a speed of 12 m/s.

Acceleration is the rate of change of velocity over time. It is the rate at which an object's speed or direction changes. Acceleration can be speeding up, slowing down, or changing direction. It can be positive, negative or zero. Positive acceleration is when an object speeds up, negative acceleration is when an object slows down and zero acceleration is when an object is moving at a constant speed. A force is needed to cause acceleration. Examples of forces that cause acceleration are gravity, friction, and applied forces.

This is due to the fact that the speed of an object under the influence of gravity is constantly increasing, so that after 4 seconds of free-fall the ball will have accelerated to a speed of 12 m/s (3 m/s multiplied by the square root of 4, which is 2).

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The distance of the test charge from the source charge is 1.1 m. Option A is correct.

It states that the electric flux across any closed surface is directly proportional to the net electric charge enclosed by the surface.\(R= \sqrt \dfrac {Qk^}E\)

Where,

\(E\) = electric force = 3. 93 × 10⁵  N/C

\(k\) = Coulomb constant = \(8.99 \times 10^9 \rm\ N m ^2 /C ^2\)

\(Q\\ \)     = charges =  5.0 µC

\(r\) = distance of separation =?

Put the values in the formula,

\(R= \sqrt \dfrac {5\times 10^{-6}8.99 \times 10^9}{3. 93 \times 10^5}}\\\\ R = 1.1 \rm \ m\)

Therefore, the distance of the test charge from the source charge is 1.1 m.

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Answer:

I know I am super super late but it is C my guy :))

Explanation:

Have a nice day!!

Answer: It is important to make a prediction

Explanation:

It is important to make a prediction before you  do an experiment because you would have an idea of what would happen befor you do it.

The reactants have a higher potential energy and energy is released.

The potential energy graph shows a plot of the progress of a reaction. The hump on the graph is the activation energy of the reaction.

The statement that best describes the  total energy change of the system is that; reactants have a higher potential energy and energy is released.

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Answer:

Explanation:

The oly way we can figure this out is if the boy is pulling the sled at a constant velocity. If not, we need a value for acceleration, and you don't have that here. If the boy is pulling the sled at a constant velocity, then the value for acceleration is 0, making this a really simple problem. I'm going with that, since there is no way to answer you otherwise. If velocity is not constant, please either repost the question or put it in the notes section under the question as it stands. If acceleration is 0, then

F - f = ma becomes

F - f = m(0) which is

F - f = 0 and

F = f which says that the applied force is the same as the frictional force. We need then to find the frictional force, which has an equation of

f = μ\(F_n\) where normal force is the same as the weight of the 2 girls. We will find that, then:

Each girl's mass is different so the normal force/weight equation is

w = (30.0)(9.8) + (40.0)(9.8) to get

w = 290 + 390 and

w = 680. Plug that into the frictional force equation:

f = (.120)(680) so

f = 82N

Answer:

these organs make up four fifth's of it's body, and gives the electric eel ablity to generate two types of electric organ discharges:low voltage and high voltage

Answer:

The electrical energy consumed in boiling the water is 0.0788 kWh

Explanation:

Given;

mass of the water, m = 600 g = 0.6 kg

power rating of the kettle, P = 1500 W = 1.5 kW

specific heat capacity of water, c = 4,200 J/kg⁰C

density of water, = 1000 kg/m³

time taken to boil the water, t = 3 mins + 9 s = (3 x 60s) + 9 s = 180 s + 9 s = 189 s = \(189 \ s \times \frac{1 hr}{3.600 \ s} = 0.0525 \ hr\)

The electrical energy consumed in boiling the water is calculated as;

E = P x t

E = 1.5 kW  x 0.0525 hr

E = 0.0788 kWh

Therefore, the electrical energy consumed in boiling the water is 0.0788 kWh

Answer:

v = 19.6 m/s.

Explanation:

Given that,

The radius of the circle, r = 5 m

The time period of the ball, T = 1.6s

We need to find the ball's tangential velocity.

The formula for the tangential velocity is given by :

\(v=\dfrac{2\pi r}{T}\)

Putting all the values in the above formula

\(v=\dfrac{2\pi \times 5}{1.6}\\\\v=19.6\ m/s\)

So, the tangential velocity of the ball is 19.6 m/s. Hence, the correct option is (c).

Answer:

15 kg ball

Explanation: