The drop in potential across a resistor in a circuit is 40 V. What is the current
flowing through the resistor if the resistance is 2.0 0? (use Ohmis law. V = IR

We need a force of  7500 in the opposite direction of the motion of the truck.

According to the first equation of motion

V= U  + a t

t = time taken

V= final velocity =0 (as truck will come to rest)

U = initial velocity = 90 km/hr = 25 m/sec

a = acceleration

a=  V- U / t

a =  0- 25 / 8

a =  - 3.125 m/\(sec^{2}\)

According newtons second law

F= m a

F =  2400  (- 3.125 m/\(sec^{2}\))

F=  - 7500 Newton

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Answer:

hen dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance.

Explanation:

Answer:

Power is the rate which work is done.

Explanation:

Power is the rate which work is done. Power is measured in watts.

Work is the use of force to move an object. Work is measured in joules

Answer:I can't see the question

Explanation:so i dont konw

To explain the tangent plane to the surface, `z = 53 − x² − 2y²` at the point `(3, 2, 6)`, let us first determine the partial derivatives of `z` with respect to `x` and `y`.

Partial derivative of `z` with respect to `x`, `∂z/∂x = -2x`Partial derivative of `z` with respect to `y`, `∂z/∂y = -4y`Now, let's find the gradient vector `grad z` at `(3, 2, 6)` and the value of `z` at `(3, 2)`.gradient vector `grad z = (-2x, -4y, 1)`gradient vector `grad z = (-6, -8, 1)` at `(3, 2, 6)`.Value of `z` at `(3, 2)` is given by `z = 53 - 3² - 2(2)² = 39`.

Therefore, the equation of the tangent plane to the surface `

z = 53 − x² − 2y²` at `(3, 2, 6)` is:

`z - 6 = -6(x - 3) - 8(y - 2)`

which can be written as:`6x + 8y + z = 50`Thus, the equation of the tangent plane to the surface `z = 53 − x² − 2y²` at the point `(3, 2, 6)` is `6x + 8y + z = 50`.

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Answer:

waking up,eat,sleep

Explanation:

notice how i didn't say math :)

It 4.5 hours for the light bulb to consume 8100 watt-hours of power.

The energy consumed by the light blub = 8100 watt-hours.

Let the time taken be t hours.

We know that;

Energy = power × time

Energy (E) =  8100 watt-hours

Power (P) = 1800 watt

Time (t) =?

8100 =  1800 × t

= 8100 / 1800

= 4.5 hours

The time taken by the light bulb is 4.5 hours.

Therefore, it could take 4.5 hours for the light bulb to consume 8100 watt-hours.

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The  combustion equation violates the law of conservation of matter is C₃H₈ + 6 O₂ --> 3 CO₂ + 4 H₂O; option D

The law of conservation of matter is a law that explains the changes that matter undergoes.

The law of conservation of matter states that matter cannot be created nor destroyed but can change from one form to another.

The law of conservation of matter is important in chemical reactions as it helps in the balancing of chemical equations to ensure that the mass of reactants and products are equal at the end of the reaction.

Considering the given reactions:

A. 2 C₆H₁₄ + 19 O₂ --> 12 CO₂ + 14 H₂O

mass of reactants equal to the mass of products

B. 2C₈H₁₈ + 25 O₂ --> 16 CO₂ + 18 H₂O

mass of reactants equal to the mass of products

C. CH₄ + 2 O₂ --> CO₂ + 2 H₂O

mass of reactants equal to the mass of products

D. C₃H₈ + 6 O₂ --> 3 CO₂ + 4 H₂O

mass of reactants is not equal to the mass of products

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The momentum of an electron is given by p = mv, where m is the mass of the electron and v is its velocity.

The momentum of an electron is given by p = mv, where m is the mass of the electron and v is its velocity. Since the mass of an electron is 9.11 x 10^-31 kg

The momentum of an electron is given by p = mv, where m is the mass of the electron and v is its velocity. Since the mass of an electron is 9.11 x 10^-31 kg, we can find its momentum if we know its velocity. However, the question does not provide any information about the velocity of the electron, so we cannot determine its momentum PPP (or any momentum at all).
Additionally, it is unclear what is meant by "momentum PPP." It is possible that this is a typo or an acronym that is not commonly used. Without more information or context, it is impossible to provide an accurate answer.
Finally, it is important to note that the question asks for an answer expressed in kilogram-meters per second, which is the standard unit of momentum. However, the question also specifies that the answer should be to three significant figures. This means that the answer should have three digits after the decimal point, regardless of the actual value.
Since we cannot determine the momentum of the electron, we cannot provide an answer to this question.

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Answer:

Kiko writes a roport to compare and contrast the code of plants and animals. Which of the following statements is accurato arvd bolony in Kiko's report?

The cell membrane of animals is much tickow than those in plants

Vaculos in plants are much larger than those in animals

Animal colls do not have chromosomos

Plant colls do not have chloroplasts

Answer:

y(x, t) = A Sin(ωt ± kx)

Explanation:

Waves can be classifies as either stationary (standing), or progressive (travelling). A progressive wave is one the is a traveling wave, transferring energy along its path. While a stationary wave seems not to be moving.

The general equation for a progressive wave is;

y(x, t) = A Sin(ωt ± kx)

Where: A is its amplitude, t is the time, k is the wave number.

When the wave travels in the positive x-axis direction, the equation changes to;

y(x, t) = A Sin(ωt - kx)

When it travels in the negative x- axis direction, the equation becomes;

y(x, t) = A Sin(ωt + kx)

NB: ω = 2\(\pi\)f and k = 2\(\pi\)/λ.

The work required to deflect the spring by 24.04 cm from its rest position is approximately 1,635.42 joules.

The work required to deflect a linear spring can be calculated using the formula:

where k is the spring constant and x is the displacement from the rest position.

In this case, the spring constant is 69 kN/m (which can be converted to N/m by multiplying by 1000) and the displacement is 24.04 cm (which can be converted to meters by dividing by 100).

Plugging the values into the formula:

Calculating:

Therefore, the work required is approximately 1,635.42 J.

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The speed of the longitudinal wave is 1.584 or approximately 1.6 meters per second.

Longitudinal waves are waves in which the medium's vibration is parallel to the wave's travel direction and the medium's displacement is in the same direction as the wave's propagation.

Sound waves are one example of longitudinal waves. Waves of ultrasound P-waves from earthquakes

A longitudinal wave's key features include compression, rarefaction, wavelength, amplitude, period, and frequency.

To calculate the above answer multiply wavelength by frequency to get the speed of a wave.

That is:

2.4 x 0.66

= 1.584

Where the frequency is not given beforehand, you can divide 6 crests by 9.1 seconds to determine the frequency.

Hence, the speed of the longitudinal wave is 1.584 which is approximately 1.6.

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The system described by the transfer function G(s) = -co² s² + 2a + w², with a damping ratio of 1.3 and a natural frequency of 0.5, has an overdamped unit step response. So, the correct option is (E)

The transfer function of the system is given as G(s) = -co² s² + 2a + w², where co represents the damping ratio, a represents an arbitrary constant, and w represents the natural frequency of the system. We are given that the natural frequency is 0.5 and the damping ratio is 1.3.

To determine the type of unit step response, we need to analyze the damping ratio (co) in relation to the critical damping value (co_critical).

The critical damping ratio (co_critical) is defined as the value where the system is on the threshold between being overdamped and underdamped. It is given by the formula co_critical = 2 * sqrt(a * w²).

In our case, the natural frequency (w) is 0.5, so we can calculate co_critical as follows: co_critical = 2 * sqrt(a * 0.5²).

Since the damping ratio (co) is given as 1.3, we can compare it with co_critical to determine the type of unit step response.

If co > co_critical, the system is considered overdamped (Option E).

If co = co_critical, the system is considered critically damped (Option D).

If co < co_critical, the system is considered underdamped (Option C).

Based on the given values, we can determine that the system is overdamped (Option E) because the damping ratio (1.3) is greater than the critical damping ratio.

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The breaking of chemical bonds can either absorb or release energy, depending on the type of chemical reaction. Some chemical reactions release energy when bonds are broken, while others absorb energy. So the correct answer is option: 4.

In exothermic reactions, the energy released by the breaking of chemical bonds is greater than the energy required to break the bonds. Therefore, the excess energy is released in the form of heat, light, or sound.

In endothermic reactions, the energy required to break the bonds is greater than the energy released. Therefore, energy must be absorbed from the surroundings in order to break the bonds. Correct option is 4.

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--The complete Question is, The breaking of chemical bonds

1. releases energy.

2. Absorbs energy.

3. Neither absorbs nor releases energy.

4. Either absorbs or releases energy depending on the type of reaction --

Answer:

(A) A pitch that is higher than the pitch actually produced

Explanation:

Doppler effect

Answer:

10

Explanation:

This is due to the fact that occluded fronts combine two cold air masses, which causes one of the cold air masses to go downward.

When a warm air mass is sandwiched between two cold air masses, an occluded front occurs. In an occlusion, the warm front passes over the cold front, which dives beneath it.

In a front is obscured, the warm front is fully supplanted by the cold front, in which the warm air masses have completely disappeared. Furthermore, there are frequent shifts in the various weather producing circumstances because of the cold front's relatively low temperature.

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Answer:

m = 3.75 [kg]

Explanation:

We must remember that momentum is defined as the product of mass by Velocity, therefore it can be represented by means of the following equation.

\(P=m*v\)

where:

P = momentum = 93.75 [kg*m/s]

m = mass [kg]

v = velocity = 25 [m/s]

Now replacing, we can clear the mass:

\(P=m*v\\m=P/v\\m=93.75/25\\m=3.75 [kg]\)

Answer:

A vegetarian diet that includes no meet is the best description of a balanced diet

Answer:

I should be B

Explanation:

extra characters lolhrhhdhfhdjdbfjsjf

Answer:

Potential, tell me if that's wrong, and sorry if its wrong.

Explanation:

The most important factor in determining if you react with a threat or challenge response is your perception of the situation.

The way we perceive a situation can trigger different physiological and psychological responses, which can prepare us to either confront or avoid a potential threat.

If we perceive a situation as threatening, our body will activate the sympathetic nervous system, which triggers the fight or flight response, leading to increased heart rate, breathing rate, and blood pressure, among other physiological changes.

On the other hand, if we perceive a situation as a challenge, our body may activate the parasympathetic nervous system, leading to a different set of physiological responses, such as increased focus and concentration.

Perception can be influenced by a number of factors, including past experiences, cultural and social background, personality traits, and cognitive biases.

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They are free electrons that can be used by any atom.

ok, i will try to explain this the best i can.

Okay, so we know that in the first shell there are 2 electrons. Only 2 electrons can fit into the first shell.

Then we have the second shell which can fit only 8 electrons.

Then, lets say we have a third shell. The third has one electron in the valence shell. The ion is "unhappy/unbalanced". We need to remove that electron to make the ion balance. So we need to remove that one electron and transfer it to another ion to make that ion "happy/balanced".

hope this helps you understand.

Answer:

about 4 km

Explanation:

15 minutes is a quarter of an hour, so you divide 16km by 4 to get your answer

Thus, the total potential is then V_total = \(-1.2 * 10^9V\)

The potential at a point due to a charge is given by V = kQ/r, where k is Coulomb's constant (~\(9x10^9 Nm^2/C^2\)), Q is the charge, and r is the distance from the charge.

The total potential at the center of the square is the sum of the potentials due to each charge.

The distance of each charge to the center is half the diagonal of the square, which is \(\sqrt2 * side/2 = \sqrt2 * \sqrt4.5/2 = 1.5m.\)

The total potential is then V_total

= \(k * [(510^8/1.5) + (210^8/1.5) - (510^8/1.5) - (710^8/1.5)] = -2 * k * 10^8 / 1.5 \\= -1.2 x 10^9 V.\)

Thus, the total potential is then V_total = \(-1.2 * 10^9V\)

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Answer:

You could claim that Pluto is a planet as it rotates around our sun.

Explanation:

Hope that helps :)

Answer:

IAU downgraded the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet. Essentially Pluto meets all the criteria except one it has not cleared its neighboring region of other objects.

At the base of the incline, Sam is moving at a speed of 15.73 m/s. who weighs 75 kg puts on his skis and begins to descend a 50 m-high, 20 frictionless slope.

Sam's bottom-of-the-screen speed is determined using the Work-Energy Theorem as follows: An object moves parallel to the plane on a slope with no friction. Both the normal force and the gravitational perpendicular component cancel each other out because they are acting in the same speed. Therefore, an object on a frictionless slope is solely accelerated by the gravitational parallel component. On a surface on an inclined plane with no friction, any item accelerates.

delta W is equal to the delta kinetic energy for frictionless slope

(36750 - 27472) = 1/2*75*(v2 -0).

9278=37.5(v^2)

v^2 = 9278/37.5(v2)

v^2 = 247.4v = 15.73 m/s

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Answer:

The acceleration during the take-off from the moon is 4.3 m/s²

Explanation:

Given;

the mass of the fully-loaded module, m = 2000 kg

The thrust of its engines,  F =  8600 N

Apply Newton's second law of motion to determine the acceleration during the take-off from the moon;

F = ma

where;

a is the acceleration

a = F / m

a = 8600/2000

a = 4.3 m/s²

Therefore, the acceleration during the take-off from the moon is 4.3 m/s²

The nuclear fusion of hydrogen atoms releases a huge amount of energy. So the correct choice is C. Conversion of mass to energy.

What is nuclear fusion?

When two small nuclei join to form a new nucleus, then this process is termed nuclear fusion. A huge amount of energy is released when there occurs nuclear fusion between the two nuclei. And a new element is formed.

It has been observed that the amount of energy released in nuclear fusion is equal to the mass difference between the mass of the formed nucleus and the total mass of old nuclei. Hence in the nuclear fusion of hydrogen nuclei to form a helium nucleus, the energy is released due to the conversion of mass into energy.

The pressure is increased to make the hydrogen atoms fuse but this change in pressure does not contribute to the energy released in the fusion of hydrogen.

The magnitude of the gravitational field is too low and it does not contribute to the energy released in the fusion of hydrogen.

The gravitational collapse does not occur between the two hydrogen atoms. This phenomenon occurs in celestial bodies so this also does not contribute to the energy released in the fusion of hydrogen.

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Answer:

176.4 m

Explanation:

To calculate the distance, the equation would be:

distance = acceleration X time² / 2

Assuming the stone is held at a complete stop before dropping, the acceleration would be equal to gravity which is 9.8m/s².  So:

d = (9.8m/s²)( 6s)² / 2

   = (9.8m/s²)(36s²) / 2

   = 176.4 m