Provide examples of foods high in protein

Answer:x rays are electromagnetic waves.

x rays are transverse waves

x rays travel at the speed of light

Explanation:

Only dense materials might condense during the formation of terrestrial planets; this is not the case with jovian planets.

The ones that couldn't condense dense materials are huge and gaseous and found further from the star, which is why they are rocky and smaller.

The main distinction is that while Jovian planets are predominantly formed of less dense hydrogen and helium, terrestrial planets are primarily made of rock, which is even more dense.

The density of a planet depends on its make-up. In contrast to the four outer planets, the four inner terrestrial planets are denser. Rock that is hard and thick makes up the majority of the inner planets. Since gas makes up the majority of the outer planets, their total density is lower.

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Answer:

The definition of a regular shape is that all the sides are equal and all the inside angles are equal. An irregular shape doesn't have equal sides or equal angles.

Explanation:

Hope this helps you

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A conductor is a substance that allows electrical charges to pass freely through it.

Starting your car, turning on a light, using an electric stove, watching Television, shaving with only an electric razor, playing computer games, using a phone, and charging a cell phone are examples of current electricity.

The quantity of electric charge passing through a conductor each second is known as current. It is responsible for transporting electrical energy from power plants to homes and businesses via the transmission and distribution networks. It is also referred to as electricity.

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Answer:

(d) zero

Explanation:

Net acceleration = (a - g)

a is downward so it is positive

F(net) = ma(net)

F = 100 x (9.8 - 9.8)

F = 0

The correct option is (d).

112.5 kJ is used when  a 75 watt light bulb used for 25m.

Energy  is a quantitative property given to a body or physical system, identifiable in the performance of work or in the form of heat and light. Standard mechanical size. Energy is Conserved - The law of conservation of energy states that energy can be transformed into form, but cannot be created or destroyed. The unit of measure for energy in the International System of Units (SI) is the joule (J). Common forms of energy include the kinetic energy of moving bodies, the potential energy stored in bodies (due to their position in the field, etc.), the elastic energy stored in fixed bodies, the chemical energy associated with chemical reactions, Radiant energy carried by electromagnetic radiation and internal energy contained in thermodynamic systems. All living things absorb and emit energy all the time.

Energy = Power x Time

  Time = 25 minutes

            = 25 x 60 sec = 1500 sec

Power = 75 watt

Energy = 75 x 1500

               112,500 Joules

Energy in KJ = 112,500/1000

                    = 112.5 KJ

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Answer:

If your birthday was celebrated already then you would be  23, but if your birthday isn't celebrated then you would be 22

Explanation:

Answer:

Formula = D = m/v

Given value of D = 19.3 and m = 13g

19.3 = 13/v

V × 19.3 = 13

v = 13/19.3

v = 0.67

Low mass stars vary in that they have longer life cycles and develop into white dwarfs. Supernova explosions occur in high mass stars, which also have shorter life cycles.

Circles are used in a Venn diagram to depict the relationships between individual items or small groups of things. Circles that overlap have certain qualities, but circles that do not overlap do not. Venn diagrams help you to more easily see the relationships and differences between two ideas.

Circles are used in a Venn diagram to depict the relationships between individual items or small groups of things. Circles that overlap have something in common, but circles that don't share nothing.

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Answer:

The maximum height reached by the two blocks is approximately 0.1147959 × v₀²

Explanation:

The mass of block B = m

The mass of block A = 3·m

The initial velocity of block B, v₂ = 0 m/s

The initial velocity of block A, v₁ = v₀

The amount of friction between the blocks and the surface = Negligible friction

By the Law of conservation of linear momentum, we have;

Total initial momentum = Total final momentum

3·m·v₁ + m·v₂ = (3·m + m)·v₃ = 4·m·v₃

Plugging in the values for the velocities gives;

3·m × v₀ + m × 0 = (3·m + m)·v₃ = 4·m·v₃

∴ 3·m × v₀ =  4·m·v₃

\(\therefore v_3 = \dfrac{3}{4} \times v_0 = 0.75 \times v_0\)

The kinetic energy, K.E. of the combined blocks after the collision is given as follows;

K.E. = 1/2 × mass × v²

\(\therefore K.E. = \dfrac{1}{2} \times 4\cdot m \times \left (\dfrac{3}{4} \cdot v_0 \right )^2 = \dfrac{9}{8} \cdot m\cdot v_0^2\)

The potential energy, P.E., gained by the two blocks at maximum height = The kinetic energy, K.E., of the two blocks before moving vertically upwards

The potential energy, P.E. = m·g·h

Where;

m = The mass of the object at the given height

g = The acceleration due to gravity

h = The height at which the object of mass, 'm', is located

Therefore, for h = The maximum height reached by the two blocks, we have;

P.E. = K.E.

\(m \cdot g \cdot h = \dfrac{9}{8} \cdot m\cdot v_0^2\)

\(h = \dfrac{\dfrac{9}{8} \cdot m\cdot v_0^2}{m \cdot g } = \dfrac{9}{8} \cdot \dfrac{ v_0^2}{ g } = \dfrac{9}{8} \cdot \dfrac{ v_0^2}{ 9.8} = \dfrac{42}{392} \cdot v_0^2 \approx 0.1147959 \cdot v_0^2\)

The maximum height reached by the two blocks, h ≈ 0.1147959·v₀².

Answer:

5 km/hr due south

Explanation:

We need to subtract the two velocities due to the fact that they are in opposite directions (one due south and the other one due north). Then, for an observer located on earth, the goose will be flying at :

20 km/hr - 15 km/hr = 5 km/hr

Answer:

Explanation:

V = 200.16 volts

Explanation:

V= IR

= (1.39 A)(144 ohm)

= 200.16 volts

Answer:

200.16

Explanation:

acellus

The angle between two vectors is found using the dot product of the vectors, so the angle between two vectors must be 90°

According to the question, two vectors of magnitudes 3 m and 4 m are given.

These two vectors' resultant has a magnitude of 1 m.

The angle between two vectors is calculated by using the dot product of the two vectors and dividing it by the product of the magnitudes of the two vectors.

Hence, the angle between the two vectors must be:cosθ= A . B/ |A||B| where A and B are the two given vectors.

Thus, the angle between two vectors is given bycosθ =1/ (3 × 4)cosθ = 1/12θ = cos−1(1/12)θ ≈ 84.3°Thus, the angle between two vectors is approximately 84.3°

Summary: Thus, the angle between two vectors is approximately 84.3°.

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Airport security uses X-rays to see items inside of luggage without having to open the bags. Hence, the type of electromagnetic waves that would be best for airport security to use is X-rays.

Electromagnetic waves are a type of wave that includes both electric and magnetic energy that propagate through space at the speed of light. They are created by the oscillation of electric and magnetic fields that are perpendicular to one another. They are classified according to their frequency or wavelength.

The different types of electromagnetic waves are:

X-rays are a form of electromagnetic radiation. They have a higher frequency and shorter wavelength than ultraviolet (UV) radiation. X-rays are used to take images of the inside of objects or to treat cancer.What are X-rays used for?X-rays are used for medical imaging, such as chest X-rays, mammograms, and dental X-rays. They are also used in the manufacturing industry to check for defects in products, in research to study the properties of materials, and in security to scan luggage at airports.

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Answer:

it will option B,hope it helps

C. The wavelength is longer.

A sound wave is called a longitudinal wave because compressions and rarefactions in the air produce it.

The air particles vibrate parallel to the direction of propagation.

A longitudinal wave consists of a repeating pattern of compressions and rarefactions.

Thus, the wavelength is commonly measured as the distance from one compression to the next adjacent compression or the distance from one rarefaction to the next adjacent rarefaction.

Longitudinal waves move through a medium from the point of the disturbance in the form of compressions (where particles of the medium are bunched together) followed by rarefactions (where particles of the medium are farther apart).

In longitudinal waves, the distance from one compression to the next is the wavelength.

Therefore,

In longitudinal wave the wavelength is longer.

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ANSWER:

3) 1234 m

STEP-BY-STEP EXPLANATION:

Precision refers to how close two measurements are to one another. The highest number with a significant digit is the most precise, the number that has the most significant figures. Therefore, the less accurate is the opposite.

Which means that in this case, the least precise number is 1234 m.

Answer:

11.37 m/s

Explanation:

We are given;

Mass; m = 0.001 kg

Initial velocity; v1 = 0 m/s (since it was released from rest)

Initial height; h1 = 20.6m

From the attached image of the bead in the loop, we can see that height at A; h2 = twice the radius = 2R = 2 × 7 = 14 m

g = 9.8

To solve for the speed at point, we will use formula for conservation of energy. Thus;

½m(v1)² + mgh1 = ½m(v2)² + mgh2

Divide through by m to get;

½(v1)² + gh1 = ½(v2)² + gh2

Plugging in the relevant values;

½(0²) + (9.8 × 20.6) = ½(v2)² + (9.8 × 14)

Rearranging, we have;

½(v2)² = ½(0²) + (9.8 × 20.6) - (9.8 × 14)

Simplifying, we have;

½(v2)² = 64.68

Multiply both sides by 2 to get;

(v2)² = 2 × 64.68

(v2)² = 129.36

v2 = √129.36

v2 = 11.37 m/s

You have a cart that has a mass of 400 kg and a KE of 500 J, you remove some of the things on the cart to make it lighter. If it is moving at the same speed as before, and the KE is now 125 J, what is the new mass?

kinetic energy : the energy which a body possesses by the virtue of motion

velocity : it is the rate at which a body covers displacement.

The mass of the cart given initially is : 400kg

The kinetic energy given initially is : 500J

now we know the kinetic energy formula : KE = \(\frac{1}{2}mv^{2}\)

in the first case lets apply this formula and get the velocity first.

500 = (1/2)x(400)x\(v^{2}\)

500x2 = 400x\(v^{2}\)

\(v^{2}\) = 1000/400

\(v^{2}\) = 10/4

therefore \(v^{2}\) = 10/4 \(m^{2}/s^{2}\)

now that we found the velocity of the body, lets use this to find the new mass.

now in the second case, we have
new kinetic energy : 125J

let the new mass be m.

lets substitute the given info in the formula , we get

125 = (1/2)x(m)x\(v^{2}\)

but we know \(v^{2}\) = 10/4

so we have,

125 = (1/2)x(m)x(10/4)

125x2 = (10m/4)

150x4 = 10m

60=m

therefore the new mass of the body is 60kg

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Answer:

1. e

2. f

3. b

4. g

5. a

6. c

7. d

8. j

9. k

10. i

The points of Column A with Column B related to unit measurement, temperature and energy are matched with their appropriate option.

\(1-2-3-4-5-6-7-8-9-10\\ e-f-b-g-a-c-d-j-k-l\)

Energy is the capacity of a object to do a work. More the energy object posses, more the work it can do.

The main categories of energy

Let's match the point of Column A with Column B.

Thus, the points of Column A with Column B related to unit measurement, temperature and energy are matched with their appropriate option.

\(1-2-3-4-5-6-7-8-9-10\\ e-f-b-g-a-c-d-j-k-l\)

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Answer:

2m/s

Explanation:

speed = distance÷time

speed =90÷45=2m/s

A 750kg car with an acceleration of 7.8m/s^2 will be as fast as 54.6m/s when it travels for 7 seconds.

It is a rate at which velocity changes with time, in terms of both speed and direction. A point or an object moving in a straight line is accelerated if it speeds up or slows down.

How to calculate the speed of 750kg car when traveling in 7 seconds?
Vf = Vo + a*t

Vo = initial speed = 0 (the car is at rest at a red light)

Vf = final speed

a = acceleration = 7.8m/s^2

t =time = 7s

Vf = Vo + a*t

Vf = 0 + 7.8 * 7
Vf = 54.6m/s

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Answer:

the sand will heat up faster than the water

Explanation:

water has slow heat conduction

and sand had high heat conduction

Answer:A gas heater working

Explanation:because from the system of it it could be coal or just air being heated up it takes energy to make it hot! In other words convection

The factor by which the displacement will change is 3.0, and the answer is option b.

The displacement of a spring's lower end is directly proportional to the weight suspended from it. This relationship is expressed by Hooke's law, which states that the displacement (x) of a spring is equal to the force (F) applied to it divided by its spring constant (k), or x = F/k.
In this scenario, we are tripling the weight suspended vertically from a coil spring. According to Hooke's law, if the weight is tripled, the force applied to the spring will also triple. Since the displacement is directly proportional to the force, we can say that the displacement will also triple.
Therefore, the factor by which the displacement will change is 3.0, and the answer is option b.

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