What type of radiation is emitted by planets and star-forming clouds?.

Answer:

1. 4 seconds

2. 4.1

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Answer:

The will be C, but correct me if i am wrong

Answer:

D is the answer. Force can change the shape and size of an object.

The given statement "When light hits the boundary between two different materials, it can undergo both reflection and refraction" is true because Reflection occurs when the light bounces off the object and refraction leads  to bending and change in the direction .

The reflection defined as the bouncing back of the light when it strikes the smooth surface. The refraction defined as  the bending of the light rays when it will travels from the one medium to the another. Generally it occurs on the shinny surfaces that will only allow the rebounding of the light without permitting the penetration through it.

The reflection and the refraction both occurs when light hits the boundary between two different materials.

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the new distance between the central and the second-order bright fringe, when the screen is moved 1.0 m further away, is approximately 9.92 m.

y = (λL) / d

where:

y is the distance from the central bright fringe to the desired fringe (in this case, the second-order bright fringe),

λ is the wavelength of light,

L is the distance between the slits and the screen,

and d is the distance between the two slits.

Let's first calculate the distance between the slits using the given information:

λ = 520 nm

= 520 × \(10^(-9}{) m\)

L = 5.50 m

y = 8.40 cm

= 8.40 ×\(0^{(- 1 )}\)m

Using the equation, we can rearrange it to solve for d:

d = (λL) / y

Substituting the values, we have:

d = (520 × 10^(-9) m × 5.50 m) / (8.40 × 10^(-2) m)

d ≈ 3.40 × 10^(-3) m

So, the distance between the two slits is approximately 3.40 × 10^(-3)

L' = L + 1.0 m = 5.50 m + 1.0 m = 6.50 m

Using the same equation, we can find the new distance:

y' = (λL') / d

Substituting the values:

y' = (520 × 10^(-9) m × 6.50 m) / (3.40 × 10^(-3) m)

y' ≈ 9.92 m

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Answer:

6000 N toward west

Explanation:

F = ma

a = 30-15/10 = 1.5 m/s^2 towards west

m = 4000 kg

F = 4000 x 1.5 = 6000 N towards west

Explanation:

total distance travelled = 400m

total time taken = 4min 45sec = 4*60 + 45 = 285sec

Avg speed = 400/285

                   = 2.162162....m/s

                   = 2.162....m/s

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Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

From the question

mass = 10 kg

acceleration = 2 m/s²

We have

Force = 10 × 2

We have the final answer as

Hope this helps you

Answer:

Explanation:(3.9x100)(4.1x10,000)                

390x41,000

15,990,000

Answer:

Explanation:

The average speed of the car can be found by using the formula

\(s = \frac{d}{t} \\ \)

d is the distance

t is the time taken

From the question we have

\(s = \frac{300}{6} = 50 \\ \)

We have the final answer as

Hope this helps you

Answer:

50mph

Explanation:

Just do\(\frac{300}{6}\) (aka 300 divided by 6)

And you'll get 50 as your answer!

Hope this helps! Ty!

Answer:

A screw

Explanation:

In a spontaneous fusion reaction, the total mass of the products is greater than the mass of the original elements.

Why is the mass of the products less than the mass of the original elements?

This is in accordance with Einstein's famous equation E=mc², which states that mass and energy are equivalent and interchangeable. Fusion is the process of combining two lighter nuclei into a heavier nucleus, which releases energy due to the conversion of a small amount of mass into energy.

An example of a fusion reaction:

An example of fusion is the process that powers the sun, where hydrogen nuclei combine to form a helium atom. This process involves the fusion of four hydrogen atoms to make one helium atom and energy is also released in the process. Since in this reaction atoms are fusing, the mass of the resulting atom would be greater than the original elements involved.

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The maximum theoretical speed that can be achieved over a distance of 60 m by a car starting from rest depends on the coefficient of static friction and the weight distribution.

For a car with four-wheel drive, front-wheel drive, and rear-wheel drive, the maximum theoretical speeds can be determined using the principles of friction and weight distribution.

The maximum theoretical speed is limited by the maximum static friction force that the tires can provide. The maximum static friction force is determined by multiplying the coefficient of static friction by the normal force. In this case, the weight of the car is distributed differently depending on the drive type.

For four-wheel drive, the weight is evenly distributed between the front and rear wheels. For front-wheel drive, 60% of the weight is distributed to the front wheels, and for rear-wheel drive, 60% is distributed to the rear wheels.

Using the maximum static friction force, the maximum acceleration can be determined using Newton's second law, and then using the distance and acceleration, the maximum theoretical speed can be calculated using the equation v = √(2ad).

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Answer:

Real, inverted, equal to body size .

Answer:

Sample Response: The image created by the object is located on 2F behind the lens, real, inverted, and the same size as the actual object.

Explanation:

Edge 2021-2022 :)

The mean breaking force in a dry medium at a lower temperature:

Null hypothesis:

That is the difference between the mean breaking force in a dry medium at the higher temperature

(H) and at the lower temperature (4) is 100 N

Alternative hypothesis:

Ha μ->100

That is the mean breaking force in a dry medium at a higher temperature H is greater than

mean breaking force at the lower temperature 4 by more than 100 N.

Absolute zero is the lower limit of the thermodynamic temperature scale, the condition at which the enthalpy and entropy of a cooled ideal gas reaches a minimum, and is taken as zero Kelvin. Studies have shown that core body temperature declines with age.

Hypothyroidism or hypothyroidism, can also slow metabolism which can lead to a drop in body temperature.  You can say low temperature or just cold. View the activity for this post. The word temperature is value-neutral without modifiers. It doesn't mean hot or cold. The highest recorded temperature belongs to California's Death Valley,

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Explanation:

Let's say right is positive and left is negative.

F₁ = -150 N

F₂ = 220 N

Fnet = F₁ + F₂

Fnet = -150 N + 220 N

Fnet = 70 N

The magnitude of Fnet is 70 N, and since it's positive, the direction is to the right.

And since Fnet isn't 0, the force is unbalanced and the motion is changing.

Answer:

We can use Coulomb's law to solve this problem:

F = k * q1 * q2 / r^2

where F is the force between the two charges, k is Coulomb's constant (k = 9 x 10^9 N m^2 / C^2), q1 and q2 are the magnitudes of the charges, and r is the distance between them.

We know the force F, the distance r, and the magnitude of one of the charges q1. We can rearrange the equation to solve for the magnitude of the other charge q2:

q2 = F * r^2 / (k * q1)

Substituting the values we have:

q2 = (250 N) * (0.15 m)^2 / (9 x 10^9 N m^2 / C^2 * 6.5 x 10^-5 C)

Simplifying:

q2 = 8.65 x 10^5 C

Therefore, the magnitude of the other charge is 8.65 x 10^5 C.

There would be a total of 2 force vectors on a free-body diagram of an elevator suspended by a cable descending at constant velocity.

FBDs are valuable tools for describing the relative magnitude and direction of all forces operating on an object in a given condition. The meticulous drafting of a free-body diagram is the initial step in evaluating and describing most physical processes. In a free-body diagram, the size of the arrow denotes the magnitude of the force while the direction of the arrow denotes the direction in which the force acts.

A free-body diagram often includes the following elements:

The quantity of forces acting on a body is determined by the nature of the problem and the assumptions made. Air resistance and friction are frequently overlooked.

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Answer:

The recurve bows

Explanation:Vote brainliest plz

Answer:

In terms of the light spectrum, blue is a primary color, which means that it is one of the base colors that exist in the universe and it cannot be created by combining different colors together. The primary pigment colors are cyan, magenta, and yellow. Cyan absorbs red, yellow absorbs blue, and magenta absorbs green.

Explanation:

Hope this helped Mark BRAINLEST!!!

Answer:

i. Cyclist A travelled 15 km 1 h cyclist A had started his journey from point X

  Cyclist B travelled 18 km 1 h cyclist A had started his journey from point X

ii. cyclist B overtake cyclist A 6 km from the same starting point X.

Explanation:

From the question,

- Cyclist A and B cycled at an average speed of 15 km/h and 20 km/h respectively.

- Cyclist B started his journey 6 mins after cyclist A had started.

Let the cyclist A time be t.

Then, we can write that

For Cyclist A

Speed = 15 km/h

Time = t mins

For Cyclist B

Speed = 20 km/h

Time = (t - 6) mins

i) To determine the distances travelled by cyclist A and B 1h cyclist A had started his journey,

For Cyclist A

Speed = 15km/h

Time = 1h = 60 mins

From the formula

Speed = Distance / Time

Then,

Distance = Speed × Time

Putting the values into the equation,

Distance = 15km/h × 1h

Distance = 15 km

∴ Cyclist A travelled 15 km 1 h cyclist A had started his journey from point X

For cyclist B

Speed = 20km/h

Time = 1h - 6mins = 60mins - 6mins = 54mins = 54/60 hour = 0.9 h

Also, from

Distance = Speed × Time

Putting the values into the equation

Distance = 20km/h × 0.9h

Distance = 18 km

∴ Cyclist B travelled 18 km 1 h cyclist A had started his journey from point X

ii) To determine the distance cyclist B overtake cyclist A, that is, when the distance covered by cyclist A equals that covered by cyclist B.

First, we will determine the time at which the distances covered by both cyclists were equal.

From

For Cyclist A

Speed = 15 km/h

Time = t hour  

Distance = Speed × Time

Distance = 15t km

For Cyclist B

Speed = 20 km/h

Time = (60t - 6) mins = (t - 0.1) hour

Distance = 20 × (t - 0.1) = (20t - 2) km

Equate the distances

15t = 20t - 2

15t - 20t = -2

-5t = -2

5t = 2

t = 2/5

t = 0.4 hour

Hence, cyclist B overtake cyclist A 0.4 hour after cyclist A had started.

For the distance cyclist B overtake cyclist A,

From

Distance = (20t - 2) km

Distance = (20×0.4 - 2) km

Distance = (8 - 2) km

Distance = 6 km

Hence, cyclist B overtake cyclist A 6km from the same starting point X.

By using a hot wire anemometer and measuring the dominant frequency of the flow, we can determine the velocity of the flow around the flagpole.

To measure the dominant frequency of vibrations in the flow around a flagpole using a hot wire anemometer, the following components are needed:

Flagpole: This is the main structure being investigated, with a known diameter of 20 cm and a Strouhal number (Sr) of 0.2.

Hot wire anemometer: The anemometer consists of a thin wire made of a temperature-sensitive material, such as platinum or tungsten. The wire is mounted in the flow and heated to a constant temperature using electrical current.

Signal conditioning circuitry: This circuitry is responsible for controlling the current passing through the wire and measuring the voltage across it.

Data acquisition system: This system records the electrical signal from the hot wire anemometer for further analysis.

The physical principle behind the hot wire anemometer is that as the flow velocity increases, it cools the heated wire, causing a change in its resistance. This change in resistance leads to a variation in the voltage across the wire, which is proportional to the flow velocity.

By measuring the dominant frequency of the flow using the hot wire anemometer, valuable information can be obtained.

In this case, if the measured frequency is f = 20 Hz, and the Strouhal number (Sr) is known to be 0.2, we can calculate the flow velocity (V) as follows:

V = Sr * f * d

where d is the diameter of the flagpole. Plugging in the values, we have:

V = 0.2 * 20 Hz * 0.2 m

V = 0.8 m/s

Therefore, the obtained information is that the flow velocity around the flagpole is 0.8 m/s.

In conclusion, by using a hot wire anemometer and measuring the dominant frequency of the flow, we can determine the velocity of the flow around the flagpole.

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Answer:

water seeks its own level

Answer:

water

Explanation:

Answer:the object does not have displacement

Explanation:

Answer: 63.43 m

Explanation:

Given

Car lands 68.38 m away from the base of the garage

Stuntman drove the car with speed \(u=19\ m/s\)

Since there is no acceleration in the horizontal direction, so there is no change in velocity

\(\Rightarrow 68.38=19\times t\\\Rightarrow t=3.598\ s\)

time taken to cover 68.38 m is 3.598 s

In this time car travels a vertical distance of h

Such that we can write

\(\Rightarrow h=u_vt+\frac{1}{2}at^2\\\\\Rightarrow h=\frac{1}{2}gt^2\\\\\Rightarrow h=0.5\times 9.8\times (3.598)^2=63.43\ m\)

Answer:

A crossroads of trade is a place where many trade routes converge, often leading to the exchange of goods and ideas between different cultures. Historically, cities and towns located at crossroads of trade have been important centers of commerce and cultural exchange. For example, the ancient city of Alexandria in Egypt was a crossroads of trade between Europe, Africa, and Asia, and played a key role in the exchange of goods and ideas between these regions. In modern times, cities such as Dubai and Singapore have become important crossroads of trade due to their strategic location and well-developed infrastructure for transportation and logistics.

This is merely a custom. The field lines show us the motion of a positive test charge on one of those field lines. As a result, the field lines point in the direction of negative charges and away from positive charges.

The force that would be acting on a positive charge would be pointed in that direction by the electric field. Because to its negative charge, an electron will flow in the opposite direction of the electric field. As a result, it will migrate to the left.

From the negative terminal to the positive terminal, electrons move. Common current, often known as current, functions as though positive charge carriers are what produce current flow.

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44.76

There are two options for formulas to use here, both work.

0=(m1)(V1f)+(m2)(V2f)

Or

(m1)(V1f)=—(m2)(V2f)

Both formulas should give you the answer of 44.763514, which can be rounded to the specifications of whatever you need it for.

Blessings in the Name of Jesus Christ our Lord!