The chemical energy in your food is transformed into what type of energy in your moving muscles?

To calculate the friction force when a ball travel through a loop , we should use ½ mv^2 + mgh.

Physical friction is all around us. Static friction is the resistance to an object moving along a path. Finally, explain it with a simple example. Consider the common activity we all engage in: walking. While working, we are constantly in contact with the floor. As we advance our feet, motion pushes against the ground as we move backward. The fact that friction operates in the opposite direction from relative motion is one important concept to be aware of in order to minimize friction. This phenomenon might be helpful for slowing down the action until it eventually stops.

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The probability of the stops including Boston and Chicago is 1/100 when an airline tracks each of its airplanes' stops for the day.

To calculate the probability of an airplane making stops in both Boston and Chicago, we need to know the total number of possible cities that the airplane can stop in. Let's say there are 10 possible cities.
The probability of the airplane stopping in Boston on any given stop is 1/10 (since there are 10 possible cities). The same goes for Chicago.
To calculate the probability of the airplane stopping in both Boston and Chicago, we need to multiply the probabilities of each stop. So, the probability of the airplane stopping in both Boston and Chicago on any given day is:
1/10 * 1/10 = 1/100

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Answer:

G

Explanation:

Here work done by the car against the force of air in each second denotes the power needed to overcome air resistance at that particular speed. The power of engine is 28 kW.

The power of an object denotes the rate of performing the work. It is defined as the work done in unit time. The SI unit of power is Watt (W) which is also called joules per second.

Power = Resistance × Speed of vehicle

Here the air resistance is found to be 700 N. Then,

Power = 700 × 40 = 28000 N m/s = 28 kW

Thus the engine power is 28 kW.

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Answer:

the acceleration is negative which means it is going in the opposite direction of the actual motion which concludes the reason why the ball is slowing down. However, when the ball is stopped, there is no acceleration as the ball is in equilibrium

Explanation:

ANSWER:

85.97 m/s

STEP-BY-STEP EXPLANATION:

Bernoulli’s theorem is written as:

The potential energy is zero as the height is same, therefore:

The air speed above the wings is 85.97 m/s

Answer:wet wet

Explanation:

The lunar phases are caused by the relative positions of the Earth, Moon, and Sun. The Moon orbits the Earth once every 29.5 days, and as it does so, we see different portions of the illuminated side of the Moon. These different portions of the Moon are called phases. There are eight primary phases of the Moon: New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Third Quarter, and Waning Crescent.

An eclipse occurs when one celestial object moves into the shadow of another. There are two types of eclipses: solar and lunar. A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking the Sun's light and casting a shadow on the Earth. A lunar eclipse occurs when the Earth passes between the Sun and the Moon, casting a shadow on the Moon.

To explain these phenomena, teachers can use different methods such as diagrams, animations or models. For example, teachers can use a lamp to represent the Sun, a small ball to represent the Moon and a larger ball to represent the Earth. By moving the Moon around the Earth, the phases of the Moon can be demonstrated. To show eclipses, the Moon can be moved between the Earth and the Sun, or the Earth can be moved between the Sun and the Moon.

Using these methods can be an effective way of demonstrating the phases and eclipses to students. Teachers can also use animations and videos to help students visualize these events. It is important to note that these models and demonstrations are not perfect representations of the actual events, as they simplify the complex motions and distances involved in the interactions between celestial bodies.

Name of person taught: John

John said: "I learned a lot from the model that my teacher showed me. It was very helpful to see how the phases of the Moon and eclipses occur. The demonstration with the lamp and the balls really helped me understand the concepts. I also appreciated the videos that my teacher showed me, as they helped me see the events from different perspectives."

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Answer:FASTEST AND BEST ANSWER GETS BRAINLIEST AND THANKS!

Include a picture, video, or diagram of your model of lunar phases or eclipses.

Provide a description of how you made your model and how it demonstrates eclipses or lunar phases.

Include a one-paragraph reflection on the success of your model in explaining your event.

Include the name of the person you taught about your event and that person's description of what they learned from your model.

Explanation:

wawa wawa

Answer:As a pendulum swings, its potential energy converts to kinetic and back to potential. ... A swinging pendulum.

Explanation:During the course of a swing from left to right, potential energy is converted into kinetic energy and back.

When went deep sea diving with it. at 40 meters. The pressure at new depth is 4.75 atm.

PRESSURE -  It is the force applied perpendicularly to an object's surface divided by the surface area that it is applied to.

The new pressure that crushed ball is calculated as:

we use Boyle's Law;

P₁V₁ = P₂V₂

where  P₁,P₂,V₁,V₂ are the pressure and volume for respective values.

P₂ = P₁V₁/V₂

P₁ =  1.9 atm

V₁ = 5.4 liters

V₂ = 2.16 liters

P₂  = ?

P₂ = P₁V₁/V₂

P₂ = (1.9 atm x 5.4 liters) / 2.16 liters

P₂ = 10.26 / 2.16

P₂ = 4.75 atm

When went deep sea diving with it. at 40 meters. The pressure at new depth is 4.75 atm.

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The frequency of light when it reaches Earth is approximately 4.988 x 10^14 Hz.

Explanation:-

Given:

Emitted frequency of light, f = 5.000 x 10^14 Hz,

Speed of the galaxy receding from Earth, v_src = 4500 km/s.

We need to convert the speed of the galaxy from km/s to m/s:

v_src = 4500 km/s * (1000 m/km)

v_src = 4.5 x 10^6 m/s

Plugging the given values into the Doppler effect formula:

f' = (5.000 x 10^14 Hz) * (3.00 x 10^8 m/s + 0 m/s) / (3.00 x 10^8 m/s + 4.5 x 10^6 m/s)

Simplifying the expression:

f' = (5.000 x 10^14 Hz) * (3.00 x 10^8 m/s) / (3.00 x 10^8 m/s + 4.5 x 10^6 m/s)

f' ≈ 4.988 x 10^14 Hz

Therefore, the frequency of light when it reaches Earth is approximately 4.988 x 10^14 Hz.

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Answer:

In layman's terms, burning hydrogen results in water: H2 + 1 2 O2 −→ H2O + 286, 000 joules. This combustion reaction also releases 286,000 joules of energy per mole of hydrogen gas burned.

Explanation:

The tension in the connecting cord is 4.72 N.

Tension is defined in physics as the pulling force transmitted axially by a string, rope, chain, or similar object, or by each end of a rod, truss member, or similar three-dimensional object; tension can also be defined as the action-reaction pair of forces acting at each end of said elements.

Given that:

Mass of block A (mₐ) = 3.0Kg

Mass of block B (mb) = 4.0 kg

Force (F)=  8.0N

Assume a = acceleration of the blocks.

mₐ(a) +  mb(a) = 8

3a + 4a = 8

7a = 8

a = 8/7

a = 1.142 m/s²

Suppose T to be the tension in the string.

If we take a look at the forces acting on the first block, then:

F - T =  (a)

T = F -  (a)

T = 8- 3(1.142)

T = 8-3.428

T =4.72 N

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Answer: Speed

Explanation:

Speed is the time it takes something to travel a certain distance. Accelaration is the rate at which an object's speed changes. Velocity is a vector of the object's speed and direction.

Answer:

because these units are derived from combinations of two or more of the seven base units

Answer:4.39

Explanation:For acellus students the answer is 4.39

Concepts:

For resistors in series we know the following,

\(1. \ I_{tot.}=I_1=I_2=I_3=...\\2. V_{tot.}=V_1+V_2+V_3+... \\3. R_{eq.}=R_1+R_2+R_3+...\)

For parallel resistors we know the following,

\(1. \ V_{tot.}=V_1=V_2=V_3=...\\2. \ I_{tot.}=I_1+I_+I_3+...\\3. \frac{1}{R_{eq.}}=\frac{1}{R_1} + \frac{1}{R_2} +\frac{1}{R_3}+...\)

What is a resistor?

Resistors are used in electrical circuits. Resistors take energy and convert it into another form such as thermal energy which in turn can limit the amount of current through a wire.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#1:

We are given a circuit with series resistors.

Using the following equation to find an equivalent resistor.

\(\Rightarrow R_{eq.}=R_1+R_2+R_3+...\)

\(\Longrightarrow R_{eq.}=2+2 \Longrightarrow \boxed{R_{eq.}=4 \Omega}\)

#2:

We are given a circuit with parallel resistors.

Using the following equation to find an equivalent resistor.

\(\Rightarrow \ \frac{1} {R_{eq.}}=\frac{1}{R_1} + \frac{1}{R_2} +\frac{1}{R_3}+...\)

\(\Longrightarrow \ \frac{1} {R_{eq.}}=\frac{1}{2} + \frac{1}{2} \Longrightarrow \ \frac{1} {R_{eq.}}=1 \Longrightarrow (\ \frac{1} {R_{eq.}})^{-1}=(1)^{-1} \Longrightarrow \boxed {R_{eq.}=1 \ \Omega}\)

#3:

We are given a circuit with parallel resistors.

Using the following equation to find an equivalent resistor.

\(\Rightarrow \ \frac{1} {R_{eq.}}=\frac{1}{R_1} + \frac{1}{R_2} +\frac{1}{R_3}+...\)

\(\Longrightarrow \ \frac{1} {R_{eq.}}=\frac{1}{1} + \frac{1}{1} \Longrightarrow \ \frac{1} {R_{eq.}}=2 \Longrightarrow (\ \frac{1} {R_{eq.}})^{-1}=(2)^{-1} \Longrightarrow \boxed {R_{eq.}=\frac{1}{2} \ \Omega}\)

#4:

We are given a circuit with series resistors.

Using the following equation to find an equivalent resistor.

\(\Rightarrow R_{eq.}=R_1+R_2+R_3+...\)

\(\Longrightarrow R_{eq.}=1+1 \Longrightarrow \boxed{R_{eq.}=2\ \Omega}\)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Thus, the combination with smallest equivalent resistance is option #3.

For Problem Three:
11. The time constant for this circuit is given by τ = L/R = 12.0mH / 2.00Ω = 6.00ms. To find the time it takes for the current to reach 80% of its maximum value, we can use the equation I = Imax * (1 - e^(-t/τ)), where Imax = EMF/R is the maximum current that the circuit will reach. Solving for t, we get t = -τ * ln(1 - 0.80 * R/EMF) = -6.00ms * ln(1 - 0.80 * 2.00Ω/10.0V) ≈ 3.21ms. Therefore, the answer is (A) 3.21ms.

12. After the switch is connected to point b, the circuit behaves like a simple RL circuit. The current in an RL circuit at any time t is given by I = Imax * e^(-t/τ), where Imax = EMF/R is the maximum current that the circuit will reach and τ = L/R is the time constant. After two time constants have passed (i.e. t = 2τ), the current in the circuit will have decayed to I = Imax * e^(-2) ≈ 0.135 * Imax. Therefore, we need to find Imax first: Imax = EMF/R = 10.0V/2.00Ω = 5.00A. Then, the current after two time constants have passed is I = 0.135 * Imax = 0.135 * 5.00A ≈ 0.677A. Therefore, the answer is (E) 0.677A.

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Answer:

Explanation:

Fr= Fn-P

ma=Fn-mg

Fn= m(a+g)

Fn=62(1.2+9.8)

Fn= 682N

The ball continues to fall, its kinetic energy will increase.

Kinetic energy is the energy an object possesses due to its motion. It is the energy associated with an object’s speed and mass, and is the energy that an object has because of its movement. Kinetic energy can be converted into other forms of energy, such as heat, light, or sound. It can also be used to do work, such as moving objects or powering machines. Kinetic energy is a form of mechanical energy, which is energy that is associated with the motion or position of an object. Kinetic energy is related to the work done on an object, and it increases as the object’s speed increases. Kinetic energy can be calculated using the formula KE = ½mv2, where m is the mass of the object and v is the velocity of the object.

The kinetic energy of the ball will increase as it falls, because it is gaining speed due to gravity.
As it falls, it accelerates at a rate of 9.8 m/s^2, and its kinetic energy is equal to its mass multiplied by the square of its velocity.
Therefore, as the ball continues to fall, its kinetic energy will increase.

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Answer:

0.463 m/s^2

Explanation:

I calculated the answer using my

Answer:

i think its resonance but if im wrong its my fault

Explanation:

Answer:

Option A

Explanation:

A. A ball is dropped from a height and hits the ground with a high speed. As this is a ball, it has elastic energy, so upon impact on the ground the kinetic energy can 1. go into making sound upon impact, or 2. go into making the ball bounce upward again. There may by more possible energy transfers, but this is what should occur in like conditions. Now it didn't mention that the ball transfers energy as such, only that the ball hits the ground at high speed. Thus, this statement does not explicitly describe a transfer of energy.

_______________________________________________________

Just to confirm that this is the correct answer, take a look at the other options. Option B states that the energy from the collision is transferred to heat, not in those exact words but still is given. Option C states that the plane increases speed, most likely transferring energy to the atmosphere, in the form sound. In option d the electricity causes the fan to turn, an explicit statement of the transfer of energy.

Hope that helps!

Explanation:

Assuming the 10 m distance is the vertical displacement, the work done by both people is the same.

Work = force × distance

W = (250 N) (10 m)

W = 2500 J

The power of the first person is:

Power = work / time

P = 2500 J / 120 s

P = 20.83 W

The power of the second person is:

P = 2500 J / 60 s

P = 41.67 W

The change of any element of the project, must not essentially be passed through a change control process.

False

Any modifications to a project component must go through the change control process in order to ensure that the change request is properly evaluated and either authorized, postponed, or denied. Therefore, it is crucial to follow the change control procedure when submitting a change request since it enables the business to make decisions that are effective.  

The aforementioned claim cannot be true since the change control process allows for the correct review and approval of modifications before they are implemented in a project. This makes it easier and more accurate for the organization to achieve its objectives.  

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The percentage of adhesions measured in use that are higher than 0.40 is approximately 22.66%.

For finding the percentage of adhesions that are higher than 0.40, need to calculate the area under the normal distribution curve to the right of 0.40. First, need to standardize the value of 0.40 using the Z-score formula:

Z = (X - μ) / σ

Where X is the value (0.40), μ is the mean (0.37), and σ is the standard deviation (0.04).

Z = (0.40 - 0.37) / 0.04 = 0.03 / 0.04 = 0.75

Next, look up the Z-score of 0.75 in the standard normal distribution table for finding the corresponding cumulative probability. The Z-table tells that the cumulative probability to the left of 0.75 is approximately 0.7734.

Since want the percentage to the right of 0.40, subtract the cumulative probability from 1:

1 - 0.7734 = 0.2266

Therefore, the percentage of adhesions measured in use that are higher than 0.40 is approximately 22.66%.

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