anyone know the answer?

Answer:

The force of gravity = 40 N

Explanation:

Given that,

The mass of a ball, m = 10 kg

The acceleration due to gravity on the surface of Mars, a = 4 m/s²

We need to find the force of gravity of the ball on Mars. The force of gravity on an object is given by :

F = mg

Substitute all the values,

F = 10 kg × 4 m/s²

F = 40 N

Hence, the correct option is (B).

Answer:

Electric potential = 0.00054 V

Explanation:

We are given;

Charge; q = 3 pC = 3 × 10^(-12) C

Radius; r = 2 cm = 0.02 m

Formula for the electric potential of this surface will be;

V = kqr

Where;

K is a constant = 9 × 10^(9) N⋅m²/C².

Thus;

V = 9 × 10^(9) × 3 × 10^(-12) × 0.02

V = 0.00054 V

Answer:

b

Explanation:

it melts yes but it's still water [same element] so there fore it's a physical change

Answer:

It does not change the chemical composition of water. Explanation: A physical reaction is defined as the reaction in which a change in shape, size takes place. No new substance gets formed in these reactions.

Explanation:

Hope this helped

Because that's what "uniform velocity" means.

Uniform velocity means constant speed in a straight line.

Acceleration means changing speed OR changing direction.

Answer:

Assimilation refers to the process by which a person or ethnic group that constitutes a minority people imitates the culture of the majority population and, when the process is complete, completely abandons its own culture. Thus, the original cultural differences disappear and society becomes a monoculture. For example, immigrant groups or colonized indigenous peoples may abandon their culture, either spontaneously or after religious persecution and coercive measures, called assimilation policies.

A number of immigrant groups were assimilated into American society during the 19th century in what is usually described as a cultural melting pot or Americanization. In this case, the adaptation was not one-way, and largely spontaneous.

Answer:

Efficiency in general means How well an object does with respect to its designated purpose for example a battery with Voltage of 10 volts won't exert 10 volts but slightly less due to internal resistance let's say 8V so efficiency will be 8/10 x100 = 80%

Same thing with a machine/engine If an engine is designed to produce 150 horsepower it won't give you the full energy due to part of the energy being dissipated in form of heat due to friction so let's say 145 hp is produced which is 96% efficiency

Answer:

A helpful mutation like camoflage would immensely help a species survive and flourish. The reason being the appliances of such a mutation. Camoflage is one of the most apllicable of abilities. It can be used as a defense mechanism, to hide in plain sight, it can be used offensively to avoid being seen while hunting and it can even be used as a form of communication between the species. All of these appliances would greatly benefit the species and would most definitely help it survive and flourish.

Answer:

if one bulb burns out the other bulbs will also turn off because they are connected to each other.

The current is increased by a factor of 8.

From 18/35 A. to 144/35 A.

The electric current changes from 0.514 ampere to 4.14 ampere, i.e, electric current flow in the circuit increases 8 times.

A stream of charged particles, such as electrons or ions, travelling through an electrical conductor or a vacuum is known as an electric current. The net rate of electric charge flowing through a surface or into a control volume is how it is calculated.

Initial electric current flowing through the circuit = (18 volt ÷ 35 ohms)

= 0.514 ampere.

When the initial voltage of 18 V is doubled, and the initial resistance of 35 Ohms is reduced by a factor of 4, electric current flowing through the circuit will be = (2 × 18 volt )÷ (35 ohms÷4)

= 4.114 ampere.

Hence, electric current changes from 0.514 ampere to 4.14 ampere, i.e., electric current flow in the circuit increases 8 times.

Learn more about electric current here:

https://brainly.com/question/2264542

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Answer:

D. Cooler

Explanation:

The Sun's surface has a temperature ranging from 6 000 Kelvin, thus it is very hot. The radioactive reaction in the core of the Sun is a nuclear fusion reaction. This reaction ensures continuous release of high energy from the surface of the Sun.

But during the reaction, some parts becomes cooler than other parts on its surface. Which is due to the release of high amount of energy into space. The Sun's spot can be found in the cooler part of the Sun.

Answer:

C. Cooler

Explanation:

Solution :

Given :

Wavelength of the thin beam of light, λ = 50 μm

Distance of the screen from the slit, D = 3.00 m

Width of the fringe, Δy = ±8.24 mm

Therefore, width of the slit is given by :

[tex]$d=\frac{n \lambda D}{\Delta y}$[/tex]

  [tex]$=\frac{2 \times 50 \times 10^{-9} \times 3}{2 \times 8.24 \times 10^{-3}}$[/tex]

  = 0.000018203 m

  = 0.0182 mm

  = 0.018 mm

The intensity of light is given by :

[tex]$I=I_0\left(\frac{\sin \beta /2}{\beta/ 2}\right)^2$[/tex]   , where [tex]$\beta=\frac{2 \pi D \sin \theta}{\lambda}$[/tex]

[tex]$I=I_0\left(\frac{\sin \frac{\pi d \sin \theta}{\lambda}}{\frac{\pi d \sin \theta}{\lambda}}\right)^2$[/tex]

[tex]$I=I_0\left(\frac{\sin \frac{\pi d y}{D\lambda}}{\frac{\pi d y}{D\lambda}}\right)^2$[/tex]

Now, [tex]$\frac{dy}{D \lambda} = \frac{8.24 \times 10^{-3}\times 0.018 \times 10^{-3}}{4 \times 50\times 10^{-9}\times 4}$[/tex]

               = 0.1854

               ≈ 0.18

[tex]$I=I_0\left(\frac{\sin 0.56}{0.56}\right)^2$[/tex]

  [tex]$=I_0 \times 0.81$[/tex]

  = 2  x0.81

  [tex]$= 1.62 \ W/m^2$[/tex]

Answer:

D

Explanation:

Answer:

i would pick c

Explanation:

because, w and y it is very bright and bright can be very conductive like it said.

solute + solvent = a solution

I found a really good image for this situation:

Answer:

B because the earth rotational axis tilt away from the sun.

Answer:

pitch

Explanation:

Answer:

depends the ancient humans or the start of the solar system

Explanation:

if its the humans the earth was in the middle of everything.

but the beginning of the solar system lets say when earth just formed the orbits where unstable and planet ending impacts happed a lot.

ill do the proto planetary disc too

the disc formed the gas giants first then the rockey  planets formed out of the disc  

Answer:

v = 8.0 m/s

Explanation:

The diagram clearly shows that the string is vibrating in the 5th harmonic. Hence, the length of string in terms o wavelength can be given as:

[tex]L = \frac{5}{2}\lambda\\\\\lambda = \frac{2}{5} L[/tex]

where,

λ = wavelength = ?

L = Length of string = 1 m

Therefore,

[tex]\lambda = \frac{2}{5}(1\ m)\\\\\lambda = 0.4\ m[/tex]

Now, the speed of the wave can be given by the following formula:

[tex]v = f\lambda\\[/tex]

where,

v = speed of wave =?

f = frequency of wave = 20 Hz

Therefore,

[tex]v = (20\ Hz)(0.4\ m)\\v = 8\ m/s\\[/tex]

Hence, the correct answer is:

v = 8.0 m/s

Answer:

the answer is b i think

Answer:Within an individual organism, the specific combination of alleles for a gene is known as the genotype of the organism, and (as mentioned above) the physical trait associated with that genotype is called the phenotype of the organism.

Explanation:

The phenotype is the trait those genes express. ... Looking at the possible offspring, each box (or possible offspring) has two copies of the dominant gene. This means there is a 100% chance of the offspring having brown eyes, or being BB. It's important to note here that each box represents a possible offspring.

Answer:

I think it is 5.6. This is my answer

Answer:

yes they can

Explanation:

sure if they want

Answer:

do u have a picture of the question?

Explanation:

it would be easier to solve

[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\blue{sw}}{\pink{er}} {\color{blue}{:}}}}}[/tex]

Elements are one type of atom.

Elements are complete chemical substances which relate to a single entry in the modern periodic table. Elements consist of one kind of atoms only.

Answer:

Undersea mountain ranges are mountain ranges that are mostly or entirely underwater, and specifically under the surface of an ocean. If originated from current tectonic forces, they are often referred to as a mid-ocean ridge. In contrast, if formed by past above-water volcanism, they are known as a seamount chain.

Explanation:

Answer:

primary voltage/secondary voltage = number of turns on primary coil/number of turns on secondary coil

V1/V2= N1/N2

1.5/5 = 150/N2

0.3 = 150/N2

N2= 150/0.3

N2 = 500

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Answer:

A

Explanation:

potential energy is energy due to position

Answer:

ice is a poor conductor of heat and less dense than water. During winter, ice floats and insulates the water under it. Below the frozen layer, the water remains in its liquid state and does not freeze. Also, oxygen is trapped beneath the layer of ice. This makes it possible for aquatic animals to survive during winter.

Hello. You did not present the photos to which the question refers, which makes it impossible for your question to be answered. However, I will try to help you in the best possible way.

Your question informs us that the photos are of a star-forming molecular cloud. The molecular cloud has dust, especially when the star is forming. In this case, we must keep in mind that in photos taken in visible light, the dust is able to appear, especially in space, where this dust would not reflect light, unlike the star in formation. In this case, we can conclude that in the case of the photo taken in visible light, we could see the molecular cloud as a dark spot, due to the dust. However, it would not be possible to view it in a photo taken with infrared light.