A firework is launched with a force of 700 N and a momentum of 200 kg-m/s. How much time before is explodes?

Answer:

ballance

i just took the quiz

Answer:

01.

Explanation:

Half the acceleration. Its heavier and moves slower. If it moved the same acceleration, the forces would also have to be doubled since the mass was.

Answer:

6hours

Explanation:

because of 300km

Answer:

2.61 J

Explanation:

Since potential energy U = mgy where m = mass of object, g = acceleration due to gravity = 9.8 m/s² and y = height of object above the ground.

Now for the coffee mug, m= 0.422 kg and it is 0.63 m on a table, so it is 0.63 m above the ground. Thus, y = 0.63 m.

We compute U

U = mgy

= 0.422 kg × 9.8 m/s² × 0.63 m

= 2.605 J

≅ 2.61 J

So, the potential energy of the mug with respect to the floor is 2.61 J

The resonance angular frequency (ω0) in a simple AC circuit can be expressed in terms of the inductance (L) and capacitance (C) as ω0 = 1 / √(LC). To calculate the value of ω0 in radians per second, we need to substitute the given values of L and C into the equation.

In a simple AC circuit consisting of an inductor (L) and a capacitor (C), the resonance angular frequency (ω0) is the frequency at which the circuit exhibits maximum response or resonance. It can be calculated using the formula ω0 = 1 / √(LC), where L is the inductance and C is the capacitance.

To calculate the value of ω0, we substitute the given values of L = 0.085 H and C = 0.075 F into the equation. Plugging these values into the formula, we get ω0 = 1 / √(0.085 * 0.075).

Simplifying the expression, we find ω0 = 1 / √(0.006375) = 1 / 0.0799 ≈ 12.518 radians per second.

Therefore, the value of ω0, in radians per second, for the given circuit is approximately 12.518.

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The statements about limiting frictional force between two surfaces are given below(3) A and C is correct option.

The nature of surfaces in contact affects the limiting frictional force because the coefficient of friction depends on the properties of the surfaces in contact.

The area of surfaces in contact also affects the limiting frictional force because a larger surface area in contact results in a larger normal force, which increases the maximum frictional force that can be generated.

The normal reaction between the surfaces in contact is not directly related to the limiting frictional force, as it only affects the magnitude of the frictional force and not its limit. Therefore, statement B is not correct.

Thus the correct option is (3).

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The target cost per unit for Venture Inc. wants to introduce a new product with a unit selling price of $25 is $21.

Target costing, or target estimating technique, is an evaluating procedure that includes setting a cost for an item or administration in light of the expenses related with making it and the ideal net revenue. In target costing, everything is arranged around a particular price tag. The goal of target costing is to ensure that a product's final selling price covers all manufacturing costs while still allowing for the desired profit margin.

The primary objective of target costing is to produce a product or service at a cost that meets a predetermined target price while preserving its functionality and quality. As such, target costing is utilized to control costs so an organization can sell its items or administrations at the ideal price tag. If a company discovers that the product or service will not meet the desired target price, it may employ various cost-cutting strategies. It might also decide to put the project on hold for a while and come back to it later.

Target cost is computed as $25 - [($1,000,000 × 20%) / 50,000] = $25 - $4 = $21.

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The angular velocity of the elbow during the elbow flexion exercise is approximately 416.25 degrees/s.

To calculate the angular velocity of the elbow during the elbow flexion exercise, we need to use the formula:

Angular velocity = (final angle - initial angle) / time

Here, the initial angle of the elbow is 22 degrees at 0.3 s and the final angle is 155 degrees at 0.62 s. Therefore, the change in angle is:

Final angle - Initial angle = 155 degrees - 22 degrees

= 133 degrees

The time taken for this change is:

Time = 0.62 s - 0.3 s

= 0.32 s

Substituting these values in the formula, we get:

Angular velocity = 133 degrees / 0.32 s

= 416.25 degrees/s

It is important to note that angular velocity is a vector quantity and has both magnitude and direction. The direction of the angular velocity in this case would be in the direction of the flexion movement of the elbow, which is clockwise when viewed from above the arm.

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False.As a star's luminosity increases, there is no direct relationship with the width of the absorption lines in its spectrum.

As a star's luminosity increases, the width of the absorption lines in its spectrum does not necessarily increase. The width of absorption lines in a star's spectrum is primarily determined by the temperature and pressure conditions in the star's atmosphere, as well as other factors such as the composition and velocity of the gas in the star.

The width of absorption lines is primarily affected by the natural broadening mechanisms, such as thermal broadening and pressure broadening. Thermal broadening is caused by the random motion of particles at different temperatures, while pressure broadening is caused by the collisions between particles in the star's atmosphere.

Luminosity, on the other hand, refers to the total amount of energy emitted by a star per unit of time. It is related to the star's size, temperature, and intrinsic brightness. Changes in luminosity do not directly impact the width of absorption lines in a star's spectrum.

In conclusion, as a star's luminosity increases, there is no direct relationship with the width of the absorption lines in its spectrum. The width of absorption lines is determined by temperature, pressure, and other factors in the star's atmosphere, while luminosity relates to the total energy emitted by the star.

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Graph A best represents the relationship between pull is doubled, gravity and distance. depends on the mass and the force of gravity. Option A is correct.

Newton's law of gravity states that each particle having mass in the universe attracts each other particle with a force known as the gravitational force.

The expression for the gravitational force is given as;

\(\rm F = G\frac{Mm}{r^2}\)

Gravitational force is proportional to the product of the masses of the two bodies and inversely proportional to the square of their distance.

Decreasing the distance would increase the gravity of the planet.

Gravity is the attraction force that draws two mass-containing objects together. the gravitational distance's strength.

The force of gravity weakens as the distance between the items rises. if the separation is just one-fourth as great as previously. In the graph, the link between pull and doubled is best represented by A.

Hence option A is correct.

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The maximum volume of water that can be poured into one of the branches is 2 cm² x 3.4 cm = 6.8 cm³.

Let's first find the volume of the mercury in the tube.

The height of the mercury in the tube is 6.8 cm. Since the cross-sectional area of the tube is uniform, the volume of the mercury is given by:

Volume of mercury = area of cross-section x height of mercury

= 2 cm² x 6.8 cm

= 13.6 cm³

Now, let's find the maximum volume of water that can be poured into one of the branches. We'll assume that all the mercury in that branch is pushed up to the top of the branch, and that the water is poured in until it reaches the same height.

Let's call the height of the water in the branch "h".

The volume of water in the branch is then given by:

The volume of water = area of cross-section x height of water

= 2 cm² x h

For the water to reach the same height as the mercury in the other branch, we need:

Volume of water = Volume of mercury

2 cm² x h = 13.6 cm³

Solving for h, we get:

h = 6.8 cm³ / 2 cm²

h = 3.4 cm

Therefore, the maximum volume of water that can be poured into one of the branches is 2 cm² x 3.4 cm = 6.8 cm³.

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Answer: Your answer is 2 grams!

Explanation: Hope this helps!

Answer:

2000 mg = 2 grams

Explanation:

Have a great rest of your day
Sincerely, the one and only
-Mr. Universe

Answer:

Check Explanation

The fission reactions include

239 Pu + n → Ce + Kr + 2n

And

295 Am + in → 154 La + 95 Sr + 3 n

Explanation:

A fission reaction is a radioactive reaction in which an atom with a heavy nuclei splits into atoms with smaller or lighter nuclei usually brought about by the attack of a fundamental particle and accompanied by the release of some fundamental particles (neutrons mostly) and energy.

Although, the reactions to be examined aren't totally clear, we can still guess which element is which and know which of the reactions has a heavier nuclei splitting into smaller ones.

1) H + H → He + 2n

Two hydrogen atoms combine to give an helium atom and release neutrons too, showing that here, smaller molecules combine to form a bigger one. Hence, this isn't a fission reaction, rather, it's a fusion reaction.

2) 239 Pu + n → Ce + Kr + 2n

Here, Pu (Plutonium, atomic mass 239), a heavy nuclei that splits into smaller nuclei, Ce (Cerium, atomic mass 140) and Kr (Krypton, atomic mass 84) together with some neutrons to fit the definition of a fission reaction. Hence, this reaction is a fission reaction.

3) 295 Am + n → 154 La + 95 Sr + 3 n

Here, Pu (Americium, atomic mass 295), a heavy nuclei that splits into smaller nuclei, Ce (Lamthanium, atomic mass 154) and Sr (Strontium, atomic mass 95) together with some neutrons to fit the definition of a fission reaction. Hence, this reaction is a fission reaction.

4) 13C + H → 14N

Carbon 13 combines with a hydrogen element to mutate and give nitrogen-14, a heavier nuclei, showing all signs of a nuclear fission and not fission.

Hope this Helps!!!

Answer:

b and c

Explanation:

got it correct on edg

Answer:

Explanation:

operantly conditioned; positively reinforced

To find the distances traveled by plane in the northerly and westerly directions after 2.10 hours, we need to calculate the displacement in each direction.

Given that the plane's velocity components are vnorth = 625 km/h (north) and vwest = 553 km/h (west), we can calculate the distances traveled using the formula:

Δd = v * t

Where Δd is the displacement, v is the velocity, and t is the time.

For the northerly direction:

Δdnorth

= vnorth * t

= 625 km/h * 2.10 h

= 1312.5 km

For the westerly direction:

Δdwest = vwest * t = 553 km/h * 2.10 h = 1161.3 km

Therefore, the plane has traveled approximately 1312.5 km north and 1161.3 km west after 2.10 hours.

It's important to note that these calculations assume constant velocity and a straight-line path of travel. In reality, factors like wind speed and direction, air traffic control, and adjustments made by the pilot may affect the actual distance traveled in each direction.

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a) The average annual evaporation from the catchment is approximately 180.29 mm/year.

b) The exact value of evapotranspiration from the irrigated area cannot be calculated due to missing information.

a) Average annual evaporation from the catchment in mm/year:

First, we calculate the total annual rainfall that is collected by the catchment area:

800,000,000 m² × 0.2 m = 160,000,000 m³/year

Since this is the only source of water for the catchment, the total amount of water available to the catchment area per year will be 160,000,000 m³/year.

We know that the average annual discharge at the outlet of a catchment is 0.5 m³/s, and since there are 31,536,000 seconds in a year, we can calculate the total volume of water that is discharged per year:

0.5 m³/s × 31,536,000 s = 15,768,000 m³/year

So, the total volume of water that is lost through evaporation per year will be:

160,000,000 m³/year - 15,768,000 m³/year = 144,232,000 m³/year

To convert this into millimeters, we need to divide this value by the area of the catchment in square meters, and then multiply by 1000 (since 1 m = 1000 mm):

144,232,000 m³/year ÷ 800,000,000 m² × 1000 mm/m = 180.29 mm/year

Therefore, the average annual evaporation from the catchment is approximately 180.29 mm/year.

b) Evapotranspiration from the irrigated area in mm/year:

Since we know that the size of the irrigated area is 10 km² = 10,000,000 m², we can calculate the total volume of water that is used for irrigation each year by multiplying this area by the amount of discharge that is lost as a result of the irrigation project:

10,000,000 m² × (0.5 m³/s - 0.175 m³/s) × 31,536,000 s/year = 4,422,480,000 m³/year

To calculate the amount of water that is lost through evapotranspiration from the irrigated area, we need to know the crop coefficient and the reference evapotranspiration (ET0) for the area. However, since this information is not provided in the question, we cannot calculate the exact value of evapotranspiration from the irrigated area.

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Explanation:

E = hc / wavelength

Given that:

h = 6.626 × 10-34 Js

c = 2.998 x 10^8 m/s

wavelength = 263 x 10^-9 m

\(\huge{ \mathrm{  \underline{ Answer }\:  \:  ✓ }}\)

Total force acting on right side = 800 N

Total force acting on left side :

Now, equivalent force acting on the plane is :

And the direction of equivalent force will be the direction of greater force, that is right direction.

Hence, Correct option is :

_____________________________

\(\mathrm{ \:TeeNForeveR\:}\)

Answer:

Carbon is the cornerstone of most biologically produced organic compounds such as proteins, carbohydrates, fats and DNA. All of these compounds contain, in addition to carbon, many other elements, including hydrogen, nitrogen and oxygen.

Explanation:

Between the value 400 nm and 700 nm there is an infinite amount of real values that can represent the length of a wavelength.

If we consider that each differente wavelength represents a different color, therefore there are infinite possible colors in the interval from 400 nm to 700 nm.

But if we consider only certain intervals of wavelength as certain colors, we can have for example 7 colors:

Violet, Indigo, Blue, Green, Yellow, Orange, Red.

The bubble's diameter just as it reaches the surface of the lake, where the water temperature is 20 degrees Celsius, will be larger than 1.0 cm.

When a scuba diver exhales a bubble underwater, the bubble undergoes changes in size due to the variation in pressure and temperature between the depths and the surface. As the bubble rises towards the surface, the surrounding water pressure decreases, causing the bubble to expand. Additionally, the temperature of the water also affects the bubble's size.

In this scenario, the initial diameter of the bubble is given as 1.0 cm at a depth of 50 meters in a freshwater lake with a temperature of 10 degrees Celsius. As the bubble ascends towards the surface, the water temperature increases to 20 degrees Celsius. According to the ideal gas law, the volume of a gas is inversely proportional to the product of pressure and temperature. As the temperature increases, the volume of the gas also increases.

Therefore, as the bubble reaches the surface where the water temperature is higher, the bubble's diameter will be larger than the initial 1.0 cm diameter. The exact increase in diameter can be calculated using the ideal gas law and considering the change in temperature and pressure throughout the ascent.

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I'm gonna have to guess B) Automation sorry if I get it incorrect

The statement that matches refraction is Waves bend while passing from one medium to another.

Generally, Your definitions for the terms reflection, diffraction, transmission, absorption, and refraction are correct.

Here are a few more examples to help solidify your understanding:

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It is typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantity's magnitude.

Answer:

They have magnitude +direction

Explanation:

eexample : force,displacement, velocity e.t.c

Answer:

It has to be the "New Moon" because that is when the moon is between the sun and the earth.

A lunar eclipse can occur when the earth is between the sun and the moon.

Savings account is where she can have access to her money anytime in case of an emergency.

This is a type of account run by a financial institution which yields interests on deposits made.

This type of account usually comes with features in which the money can be withdrawn via an ATM card or by visiting the bank to collect it. This therefore makes it the most appropriate choice for Analisa.

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Answer:

-28990N

Explanation:

F = mass * acceleration = 2899kg * 10m/s^2 = -28990N (because it is a normal force applying pressure upward).

Answer:

To find the distance the car traveled before coming to a halt, we can use the formula:

distance = initial velocity x time + (1/2) x acceleration x time^2

In this case, initial velocity is 15m/s², time is 5 seconds, and acceleration is -15m/s² (negative because the car is decelerating to a stop).

So, distance = 15m/s² x 5 seconds + (1/2) x -15m/s² x (5 seconds)^2

The distance the car traveled before coming to a halt is approximately 168.75 meters.

Answer:

blue

Explanation:

blue is the only color being reflected, meaning it's the only one that will be visible