por favor ayuda que ejercicio debo hacer para enflacar en una semana xd

Answer:

Joe & Bo's car: 200.0 kg + 100.0 kg = 300.0 kg; Melinda's car: 25.0 kg + 100.0 kg = 125.0 kg

so the answer is 125.0kg

Answer:

i) Power = Force * Velocity = 1100 * 15 = 16500 W = 16.5 kW(ii)  Find the value of k first: F = 400 + k(15^2)                                              k = 28/9    F = 400 +(28/9)(30^2) = 320

Explanation:

Answer:

Explanation:

The equation for acceleration is

\(a=\frac{v_f-v_0}{t}\) where vf is the final velocity and v0 is the initial velocity. For us, the final velocity is 25 m/s and the initial is 0 because the train started from resting position. Filling in and solving for a:

\(a=\frac{25-0}{30.0}\) so

a = .83 m/s/s

Gases are less dense near the top of the atmosphere.

All life on Earth is shielded by the atmosphere, a layer of gases that regulates temperatures within a narrow range and deflects harmful solar rays.

The layer of gases that covers Earth is known as the atmosphere. The gravitational pull of the Earth keeps it close to the planet's surface. The three primary gases that make up the atmosphere are argon, oxygen, and nitrogen.

Density of atmosphere is high at sea level and gradually decreases with height. And at top of the atmosphere, gas is less dense.

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An object's angular momentum won't change when it is rotating in a closed system without unbalanced forces, external forces, or torques. According to the law of conservation of angular momentum.

The two forces are equal in strength and move in opposite directions, which causes them to balance one another. The book is in equilibrium and won't accelerate because there aren't any unbalanced forces operating on it.

Due to unequal forces on the same side, an imbalanced force accelerates the item on which it is operating, changing its position, speed, or direction. An imbalanced force accelerates the item it is acting upon, shifting its location.

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Answer:

5.89 m/s

Explanation:

Given:

Δy = 1.77 m

v₀ = 0 m/s

a = 9.8 m/s²

Find: v

v² = v₀² + 2aΔy

v² = (0 m/s)² + 2 (9.8 m/s²) (1.77 m)

v = 5.89 m/s

The number of different accelerations the rocket had from blastoff to when it explodes is "1".

A rocket's speed and direction are determined by its acceleration. The velocity of a rocket changes as a result of acceleration. The motion of a rocket can be measured by tracking its velocity, acceleration, and distance from the Earth.

The number of different accelerations that a rocket undergoes is determined by its flight profile, or the sequence of events that occur during a rocket launch.

From the time the rocket engines ignite during blastoff, the rocket's acceleration is determined by the amount of thrust it generates. When a rocket takes off, its acceleration quickly rises. The rocket will either continue to accelerate or will level off at a fixed speed once it leaves the Earth's atmosphere.

If the rocket continues to accelerate, it will eventually reach its maximum velocity when it exits the atmosphere. If the rocket's engines malfunction, it will explode, but the number of accelerations it experiences remains constant. Therefore, from blastoff to when the rocket explodes, the rocket experiences "1" acceleration.

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Answer:

D. The General Adaptation Syndrome

Explanation:

Hans Selye, an endocrinologist, developed the "Stress Theory." He showed the relationship of "stress" to the person's development of disease.

Under stress, a person's body experiences changes. The person tries to cope with these through three stages: Alarm Reaction Stage, Resistance Stage and Exhaustion Stage. It is at the last stage that a person's immune system is placed at a huge risk. Once the person is exposed to a stressor for a period of time, he becomes hopeless and his body tends to give up coping. He then succumbs to stress-related illness.

To provide a complete response, I would need the function that describes the potential energy of the particle constrained to move along the x-axis. Without that information, I can provide a general understanding of potential energy functions.

In physics, potential energy is typically described by a function that depends on the position of the particle. Common examples include:

These are just a few examples, and the specific potential energy function would depend on the nature of the system and the forces acting on the particle. If you provide the specific function, I can assist you further in understanding its properties and implications.

Particles or assignment words are a class of words that only have a grammatical meaning and do not have a lexical meaning. The meaning of an assignment word is determined by its relation to other words in a phrase or sentence and cannot be used independently or independently.

In physics and chemistry, a particle or particle is a very small object with dimensions, which can have several physical or chemical properties such as volume or mass.

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Answer:       If you let a helium balloon go, and if, as it rises, it stays at a constant temperature, the volume of the balloon will. The magnitude of the buoyant force is equal to the weight of the amount of fluid that has the same total volume as the object.

If you let a helium balloon go, it rises, it stays at a constant temperature, the volume of the balloon will increases.

A measurement of three-dimensional space is volume. Several imperial or US customary units, as well as SI-derived units (such the cubic meter and liter), are frequently used to quantify it quantitatively (such as the gallon, quart, cubic inch). Volume and length (cubed) have a symbiotic relationship.

The density for helium remains lower than that of air, therefore when the balloon is inflated with that as well, it rises. The atmosphere's pressure continues to drop as it rises, which causes the internal pressure to rise. The balloon's volume of the balloon will increase.

Therefore, the volume of the balloon will increase.

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Answer:

Moving the magnet away from the center of the loop with its south pole facing the center of the loop.

Explanation:

Electromagnetic induction is due to a rapidly changing magnetic field, or loop area. The poles of the magnet induce current in the loop but in the opposite direction, depending on the direction of their relative motion. An approaching north pole will induce an anticlockwise current in the loop, while an approaching south pole will do the reverse. To get the galvanometer to flicker in the same direction as of that when the north pole was approaching, we move the magnet away from the center of the loop with its south pole facing the center of the loop.

Answer:

what table?

Explanation:

Answer:

-5

Explanation:

true

Explanation:

this is because melting point and boiling point decreases down the group because they are held together by attractions between positive nuclei and delocalised electrons

The motion of the moon in space to produce the different phases is the rotation and the revolution.

The moon's rotation is characterized as the movement that this body performs on its own axis.

In addition, the moon also performs the movement of revolution, which is characterized as the movement of the moon around the Earth.

The revolution lasts approximately 28 days, and just like the rotation allows for the existence of 4 phases of the moon, every 7 days.

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The change in heat q for the aluminum cup is 141 J.  

A substance's heat capacity is the amount of heat needed to increase its overall temperature by one degree. The heat capacity is known as the specific heat capacity or the specific heat if the substance's mass is unity.

change in heat -

The amount of heat Q that is transported to create a temperature shift depends on the substance and phase involved, the mass of the system, and the magnitude of the temperature change. (A) The temperature change and the amount of heat transported are directly inversely related.

The answer's sign dig is determined by a calculation's lowest sign digits.

The solution will need 3 digits because the temperatures are provided with 3 significant digits and the specified heat has 3 significant digits (the mass has 4 significant digits).

31.91 g   * 0.903 J/g-C  *  (26.1 - 21.2 C) = 141 J

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On the cosmic calendar, which compresses the history of the universe into a single year, Earth formed very early in January.

More specifically, it is estimated that Earth formed about 4.5 billion years ago, which would correspond to the first few days of January on the cosmic calendar. This means that the vast majority of cosmic history occurred before the formation of Earth, including the Big Bang, the formation of stars and galaxies, and the emergence of life in other parts of the universe.

It is fascinating to think about the vast scale of time and the relative insignificance of Earth in the context of the entire universe. The cosmic calendar is a useful tool for visualizing this scale and understanding the history of our planet in relation to the larger cosmic picture.

By compressing billions of years into a single year, we can better appreciate the incredible processes and events that have shaped our world and the universe as a whole. Overall, the formation of Earth in early January is just one small part of the incredible story of cosmic history.

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To determine the distance spanned by the diffraction spot, we need to consider the properties of the diffraction pattern and the given information.

Given:

- The screen is 30 cm behind the fish.

- The entire path of the laser, including the water and tissue, has an index of refraction close to that of water.

- The properties of the diffraction pattern are determined by the wavelength in water.

Since the diffraction pattern is formed by the interaction of light waves with obstacles or apertures, the spot's size or spread depends on factors such as the wavelength of light and the size of the aperture.

Without specific information about the wavelength or aperture size, it is not possible to determine the exact distance spanned by the diffraction spot. Additional details regarding the specific setup or measurements would be necessary to calculate or estimate the distance spanned by the diffraction spot.

Please provide further information or clarify the parameters related to the diffraction setup if you require a more specific answer.

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Answer: The charge that flows through the wire in 60 s is 14.87 C.

Explanation: The charge that flows through the wire in 60 s can be calculated using the formula:

Charge = Current x Time

The current can be calculated using Ohm’s law:

Current = Voltage / Resistance

Substituting the given values:

Current = 3.00 V / 12.1 Ohms = 0.2479 A

Charge = 0.2479 A x 60 s = 14.87 C

Hope this helps, and have a great day! =)

Answer:

4. INTERNATIONAL ASTRONOMICAL UNION

Answer:

6. force is the pull or push which changes or tends to change the (either rest or motion) of a body.

Unsaturated fats have one or more double bonds inside their fatty acid chains. The two carbons on the hydrocarbon molecules each have triple or double bonds, and hydrogens cannot saturate them. They are also liquid

Answer:

whisper is not a Matter its a sound

Answer:

Whisper

Explanation:

A whisper is not made of a substance, it is simply a sound. A cloud is mad of particles, making it matter. Same for air and an apple. Hope this helps you.

Answer:

tura paulo

Explanation:

sry if im wrong ;)

The 7.50 mW CO2 laser emits approximately 6.05 x 10^15 photons per second at a wavelength of 10.6 mm.To answer this question, we need to use the equation that relates power, energy, and time:

Power = Energy / Time
We know that the power of the CO2 laser is 7.50 mW, which is equivalent to 7.50 x 10^-3 watts. We also know the wavelength of the laser is 10.6 mm, which is equivalent to 10.6 x 10^-3 meters.

To find the energy of each photon, we can use the equation:
Energy = (hc) / wavelength

Where h is Planck's constant, c is the speed of light, and wavelength is the given wavelength of the laser.

Energy = (6.626 x 10^-34 J.s x 2.998 x 10^8 m/s) / (10.6 x 10^-3 m)
Energy = 1.24 x 10^-19 J

Now, we can use the equation:
Power = (number of photons per second) x (energy per photon)

To solve for the number of photons per second:
(number of photons per second) = Power / Energy
(number of photons per second) = (7.50 x 10^-3 W) / (1.24 x 10^-19 J)
(number of photons per second) = 6.05 x 10^15 photons per second

Therefore, the 7.50 mW CO2 laser emits approximately 6.05 x 10^15 photons per second at a wavelength of 10.6 mm.

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To calculate the number of photons per second emitted by a 7.50 mw CO2 laser with a wavelength of 10.6 mm, we need to use the equation that relates power, wavelength, and photon energy. This equation is:

P = E * n

Where P is the power, E is the photon energy, and n is the number of photons per second.

First, we need to find the photon energy using the equation:

E = hc/λ

Where h is Planck's constant, c is the speed of light, and λ is the wavelength.

Plugging in the values, we get:

E = (6.626 x 10^-34 J s) * (2.998 x 10^8 m/s) / (10.6 x 10^-6 m)
E = 1.86 x 10^-19 J

Now, we can use the equation to find n:

n = P / E

Plugging in the values, we get:

n = (7.50 x 10^-3 W) / (1.86 x 10^-19 J)
n = 4.03 x 10^16 photons per second

Therefore, a 7.50 mw CO2 laser with a wavelength of 10.6 mm emits approximately 4.03 x 10^16 photons per second.
Hi! To calculate the number of photons per second emitted by a 7.50 mW CO2 laser with a wavelength of 10.6 µm, follow these steps:

1. Convert the power of the laser to watts: 7.50 mW = 0.00750 W.
2. Convert the wavelength to meters: 10.6 µm = 1.06 × 10^-5 m.
3. Calculate the energy of a single photon using the formula: E = hc/λ, where h is Planck's constant (6.63 × 10^-34 Js), c is the speed of light (3 × 10^8 m/s), and λ is the wavelength in meters.
4. E = (6.63 × 10^-34 Js)(3 × 10^8 m/s) / (1.06 × 10^-5 m) ≈ 1.88 × 10^-19 J.
5. Divide the total power by the energy per photon to find the number of photons per second: (0.00750 W) / (1.88 × 10^-19 J) ≈ 3.98 × 10^16 photons/s.

So, a 7.50 mW CO2 laser with a 10.6 µm wavelength emits approximately 3.98 × 10^16 photons per second.

To calculate the velocity of the car in m/s, we first need to convert the initial velocity from km/h to m/s.

90 km/h = (90 x 1000) / 3600 m/s = 25 m/s (rounded to the nearest whole number)

Next, we can use the formula for velocity:

v = u + at

where v is the final velocity, u is the initial velocity, a is the acceleration, and t is the time taken. Since the car comes to a stop, the final velocity is zero. The acceleration can be calculated using the formula:

a = (v-u)/t = (0 - 25)/1.5 = -16.67 m/s²

Substituting the values into the first formula, we get:

0 = 25 + (-16.67) x t

Solving for t, we get:

t = 1.5 seconds

Therefore, the velocity of the car in m/s is zero, since it comes to a complete stop.

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Answer:200kg of water

Explanation:

Answer:

changing the polarity or direction of the battery changes the sign of the voltage and the current

Explanation:

The sign of current and voltage are due to established conventions.

The way that a DC circuit with negative current values ​​is by changing the polarity of the power source or by inverting the battery, this creates that the electrons move in the opposite direction

Changing the battery also changes the direction of the power difference, since the potential from positive to negative, in most cases negative is assigned a potential of zero volts

In summary, changing the polarity or direction of the battery changes the sign of the voltage and the current

Answer:

both caused  by physical vibrations

The magnitude of the average force acting on the object during the 2.9ms time interval will be 3.40759 ×  10⁻³ s

Pushes or pulls applied to the body are referred to as forces. The body's size, form, and orientation can occasionally be changed using it.

The definition of force according to Newton's second law of motion is the product of mass and the rate of change of velocity.

For the sake of simplicity, all forces (interactions) between objects can be divided into two main groups:

forces at contact

forces emerging from distant activity

The forces that appear to be physically contacting each other between two interacting objects are known as contact forces. The forces that come into contact with an object include frictional, tensional, normal, air resistance, and applied forces.

When two interacting objects are not physically in contact with one another but are nonetheless able to push or pull against one another despite their physical separation, this is known as an action-at-distance force. The gravitational force is an illustration of an action-at-a-distance force.

\(F_t\) =\(mv_{f}\)- \(mv{i}\)

F = \(mv_{f}\)- \(mv{i}\)/ t

   = (0.61) (16.2 - 0) / 2.9 × 10⁻³ s

   = 9.882/ 2.9 × 10⁻³ s

   = 3.40759 ×  10⁻³ s

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Answer:

k and...

Explanation:

Answer:

no thank you.

explanation: Do not want to

We need momentum

\(\\ \rm\Rrightarrow Momentum=Mass\times Velocity \)

\(\\ \rm\Rrightarrow Momentum=1200(8)\)

\(\\ \rm\Rrightarrow Momentum=9600kgm/s\)