help pleasee i give brainliest

1/Rt = 1/R1 + 1/R2 + 1/R3+ 1/R4+ 1/R5

1/Rt = 1/6+ 1/6+1/6+1/6+1/6

1/Rt = 5/6

Rt = 6/5

Rt = 1.2 ohm

so B is the answer

Answer:

C. It will move away from the second magnet because like poles repel.

Explanation:

Answer:

C

Explanation:

Answer:

Explanation:

The mass of a substance given it's molar mass and number of moles can be found by using the formula

mass = Molar mass × number of moles

From the question

molar mass = 283.03 g/mol

number of moles = 7.5 mol

So we have

mass = 283.03 × 7.5 = 2122.725

We have the final answer as

Hope this helps you

Let w denote the weight of the box, n the magnitude of the normal force (the sheet pushing up on the box), k the magnitude of the kinetic friction force, and µ the coefficient of kinetic friction.

The kinetic friction force doesn't kick in until the sheet is tilted at an angle θ₂. Since the box is sliding down at constant speed, it's in equilibrium and the forces acting on it sum to 0.

In the horizontal direction (literally left-and-right, parallel to the ground and not the sheet), we have only the horizontal components of the friction and normal forces to worry about, so that [tex]\mathbf n_x+\mathbf f_x=\mathbf0[/tex], which reduces to

f cos(θ₂) + n cos(90º + θ₂) = 0

(where we take the right to be positive and left to be negative)

Recall that cos(90º + x) = -sin(x) for all x, and that the friction force is proportional to the normal force by a factor of µ. This gives

µ n cos(θ₂) - n sin(θ₂) = 0

Solve for µ :

µ n cos(θ₂) = n sin(θ₂)

µ = sin(θ₂) / cos(θ₂)

µ = tan(θ₂)

Answer: C

A hypothesis is a testable explanation with some research behind it. An Hypothesis can be right or wrong.

The answer is C.

Hope it helps!

Answer:

c. is the answer but I'm not 100% sure

hypothesis

Harmonics, Loop and Harmonic number

Hope this helps :)

Answer:

melting.

Explanation:

The process in which a solid changes to a liquid is called melting. The melting point is the temperature at which a solid changes to a liquid. 

Answer: The ballon could get rub on a carpet to gain electricity and it would have enoght force

Explanation:

Answer:

d. is formed from pressure and heat

Explanation:

it is formed from hot magam

Answer:

47.4 ft/s

Explanation:

Using v² = u² - 2gs where u = initial vertical velocity of ball = 100sin30, v = final vertical velocity of ball at the time it was caught by the fielder, g = acceleration due to gravity = 32 ft/s² and s = vertical displacement = y₂ - y₁, y₁ = 3 ft and y₂ = 7 ft. s = y₂ - y₁ = 7 - 3 = 4 ft

Substituting these values into the equation, we have

v² = u² - 2gs

v² = (100sin30)² - 2 × 32ft/s² × 4 ft

v² = (100sin30 ft/s)² - 256 ft²/s²

v² = (50 ft/s)² - 256 ft²/s²

v² = 2500 ft²/s² - 256 ft²/s²

v² = 2244 ft²/s²

v = √2244 ft²/s²

v = 47.37 ft/s

v ≅ 47.4 ft/s

So, the velocity of the ball relative to the fielder at the instant the catch is made is 47.4 ft/s.

Answer:

Properties of a photon would be:

Explanation:

Remember that photons are a quantum of light that carry energy while having no mass, they're used mainly in cameras and in other machinery that helps emit radiation.

Hope this helps.

Answer:

I am not very sure of the first question

The second one which is why it discarted it is that because someone named Friedrich Wohler showed that it was possible to obtain an organic compound in the laboratory.

Answer:

Explanation:

the answer is gallons because i got it right on the exam

Answer:

The answer is B.

Explanation:

Because that's the one that's more-so higher up than the other soccer balls. This grants the ball to have higher potential energy than the rest.

Quote:

"Your body is as weak as your soul, so it is easy to separate the two."

- Akuma

The ball b would have the greatest amount of the potential energy as the mass of each ball is the same then the ball on the highest altitude would have the greatest amount of the potential energy contained with it.

Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total stored energy in the system which is represented by total potential energy.

The mechanical energy = potential energy + kinetic energy

As given in the problem, the image here shows four soccer balls at four different locations on an uneven soccer field very near sea level.

The potential energy of the ball = mass×gravity×height

Since each ball's mass is the same, the ball at the highest altitude would have the most potential energy within it. As a result, ball b would have the greatest quantity of potential energy.

Thus,the correct answer is option A.

Learn more about mechanical energy from here, refer to the link;

brainly.com/question/12319302

#SPJ2

Answer:

The correct option is;

A) It is the only force acting on the block that is causes by microscopic interactions

Explanation:

The force of friction is the force due to the relative motion of two surfaces in the presence of a perpendicular force acting between the surfaces.

The force of friction comes into play from the additional effect of the adhesion that is present between surfaces, the roughness of the surfaces, the contamination or deformation of the surfaces which is generated by the microscopic interactions be between the two surfaces, rather than the applied force.

The characteristics of the friction force, you can find which statements are correct:

   D) It is the sum of all the microscopic contact forces between the bottom of the block and the surface.

The force is an image of the interactions between bodies, these interactions create binding energy that can be formed and broken, the friction force is the macroscopic sum of all these microscopic interactions between two different surfaces.

The magnitude of the friction force depends on the type of each surface, on rough surfaces the interaction area is high, therefore the friction force is high, on smooth surfaces the interaction area is small, therefore the force is small, a way to create superficiality is to place a layer of air between the two surfaces.

Based on these explanations, let's review the different statements:

A) False. The friction forces are caused by interaction, but between two bodies not within the same body, this is what maintains the shape and volume of the body.

B) False. The contact area depends on each surface and therefore each type of material

C) False. The gravitational force is this in the line of interaction between the two bodies, in this case the force is perpendicular to movement, not in the line of interaction.

D) True. It is the sum of the interactions in the contact between the two bodies, it agrees with the explanation above.

Using the characteristics of the friction force, we can find the statements that are correct is:

   D)  It is the sum of all the microscopic contact forces between the bottom of the block and the surface.

Learn more about friction force here: brainly.com/question/1714663

Given parameters:

Speed of car = 50m/s

Time of travel = 5minutes (300s)

Unknown;

Distance of travel = ?

To solve this problem, we need to understand how speed relates with distance and time.

 Speed is a physical quantity. It is the distance traveled divided by time taken.

                Speed  = [tex]\frac{distance}{time}[/tex]

   So,

                Distance  =  speed x time

Input the parameters and solve for the distance;

               Distance  = 50m/s x 300s

               Distance  = 15000m

The distance covered during this time interval and speed is 15000m

the answer is B your welcome

The  true statement about a series circuit is: the current flow through every part of the circuit is the same. Hence, option (B) is correct.

Electrical networks and two-terminal components can be linked either serially or parallelly. The electrical network that results will have two terminals and be capable of operating in either a series or parallel topology.

It depends on your point of view whether a two-terminal "thing" is an electrical network (like resistors connected in series) or an electrical component (like a resistor). In this article, a two-terminal "thing" that participates in series/parallel networks will be referred to as a "component."

Each component connected in series travels the same "electrical path" and carries the same amount of current—equal to the network's current—through it.

Learn more about series circuit here:

https://brainly.com/question/14997346

#SPJ2

Explanation:

Initial speed, u = 0 km/h

Final sped, v = 50 km/h

Time, t = 8 s

1 minute = 60 seconds

⇒ 1 s = (1/60) minutes

⇒8 s = 0.1334 minutes

Acceleration,

[tex]a=\dfrac{v-u}{t}\\\\a=\dfrac{50\cdot\dfrac{5}{18}}{8}\\\\a=1.73\ m/s^2[/tex]

Hence, this is the required solution.

Answer:

t = 2.97[s]

Explanation:

To solve this problem we must use the following kinematics equations, we must bear in mind that the positive sign of the acceleration value means that the car is increased its speed.

[tex]v_{f}^{2} =v_{o}^{2} +(2*a*(x-x_{o} ))[/tex]

where:

x - xo = 180 [ft]

a = acceleration [ft/s^2]

Vo = initial velocity = 53 [ft/s]

Vf = final velocity = 68 [ft/s]

Now replacing we find:

(68^2) = (53^2) + (2*a*180)

a = 5.04 [ft/s^2]

Now using the following equation:

[tex]v_{f}=v_{0}+a*t[/tex]

68 = 53 + (5.04*t)

t = (68 - 53)/5.04

t = 2.97[s]

Answer:

Either A or D

Explanation:

Answer:

c

Explanation:

its c because high winds foRM A HURRICAN AND WARM TO AND ESPECIALY IF IT IS 80 DEGRESES

1800 sec = 30 min

Hi there !

18km = 18×1000m = 18000 m

1 s ............... 10m

x s ...............18000m

x = 1×18000/10 = 1800 sec = 30 min

Good luck !

Answer:333

Explanation:

Answer:

I think is B. sound, nuclear, electrical

but if I wrong then I am so sorry

Answer:

He was scared

Explanation:

Answer:

He Feared persecution .

Explanation: