Help me on question 5 pls I’m giving out brainlest!!

Answer:

A

Explanation:

C = (F-32)*5/9 = 73*5/9 = 40.55555

since the answers are spread apart, technically you can just estimate by doing -32

and then /2

since 5/9 is close to 1/2

Answer:

Osmosis is the movement of solvent particles across a semipermeable membrane from a dilute solution into a concentrated solution. ... Diffusion: Diffusion is the movement of particles from an area of higher concentration to lower concentration. The overall effect is to equalize concentration throughout the medium.

Answer:The foot exerts a force on the ball during a well-defined

duration t (time extent of the contact)

Explanation:

Answer:

Angle of Refraction ?

Explanation:

My decided answer on this question

Answer:

Shorter string produces more frequency in two different strings because the equation for frequency is velocity/wavelength , this means that a shorter string creates a shorter wavelength which essentially increases the total frequency produced

Answer:

unperscriebed drugs can e harmful to your body

Explanation:

Answer:

The ball falls 0.3 m in the first 1/4 seconds, and it falls 0.92 m in the second 1/4 second

Explanation:

Horizontal Launch

When an object is thrown horizontally with a speed v from a height h, it describes a curved path ruled exclusively by gravity until it eventually hits the ground.

To calculate the vertical distance (y) traveled by the object in terms of the time (t) we use:

[tex]\displaystyle y=\frac{g.t^2}{2}[/tex]

The fastball is thrown horizontally. The distance the ball falls in t=1/4 seconds = 0.25 seconds, is:

[tex]\displaystyle y_1=\frac{9.8*0.25^2}{2}[/tex]

[tex]\displaystyle y_1=0.30625\ m[/tex]

The distance the ball falls in t=1/2 seconds = 0.5 seconds is:

[tex]\displaystyle y_2=\frac{9.8*0.5^2}{2}[/tex]

[tex]\displaystyle y_2=1.225\ m[/tex]

The distance it falls in the second 1/4 second is:

[tex]y_2-y_1=1.225\ m-0.30625\ m[/tex]

[tex]y_2-y_1=0.91875\ m[/tex]

The ball falls 0.3 m in the first 1/4 seconds, and it falls 0.92 m in the second 1/4 second

Answer:

That is Gravitational potential energy.

Answer: Wind follows a pattern because the Earth is spinning in one motion. If we were spinning in one way then another we would have one day go by then the spinning cycle would change and we would have to go through that day all over again, it would not be logical because then we would be in the same season as well, we would be in one season for the rest of our lives until we died.

I don't know if this was helpfull or not but I hope it was somewhat close to helpful? If it is not then please do not report this, I am sorry if this was the least bit helpful.

HAVE A NICE DAY! :)

Answer:

67.5 N

Explanation:

From the question given above, the following data were obtained:

Charge 1 (q₁) = 3.0×10¯⁶ C

Charge 2 (q₂) = 2.5×10¯⁷ C

Distance apart (r) = 1 cm

Force (F) =?

Next, we shall convert 1 cm to m. This can be obtained as follow:

100 cm = 1 m

Therefore,

1 cm = 1 cm × 1 m / 100 cm

1 cm = 0.01 m

Thus, 1 cm is equivalent 0.01 m.

Finally, we shall determine the electrical force between the two points charges as follow:

Charge 1 (q₁) = 3.0×10¯⁶ C

Charge 2 (q₂) = 2.5×10¯⁷ C

Distance apart (r) = 0.01 m

Electrical constant (K) = 9×10⁹ Nm²C¯²

Force (F) =?

F = Kq₁q₂ / r²

F = 9×10⁹ × 3.0×10¯⁶ × 2.5×10¯⁷ / (0.01)²

F = 0.00675 / 0.0001

F = 67.5 N

Therefore, the electrical force between the two points charges is 67.5 N

Answer:

static friction is the friction that resists the motion between two objects that are not moving

Answer:

Check the diagram from the photo

Explanation:

Answer:

darn this too much lololpop

Answer: someone took down my answer I don’t know why when I took this test and got it right but the answer is C like the other person said.

Explanation:

The microwave radiation referred to in this context is radiation that was released as matter formed in the early universe. Therefore option A is correct.

Microwave radiation, also known as cosmic microwave background radiation (CMB), is a faint radiation that permeates throughout the universe.

It is considered to be the remnants of the thermal radiation released shortly after the Big Bang, during a phase called recombination. At this time, the universe transitioned from a hot, dense plasma to a state where neutral atoms could form, allowing photons to travel freely.

The cosmic microwave background radiation is isotropic, meaning it is uniformly distributed in all directions, and it has a characteristic temperature of approximately 2.7 Kelvin (-270.45 degrees Celsius).

It was first detected in 1965 by Arno Penzias and Robert Wilson, who were awarded the Nobel Prize in Physics for their discovery.

The presence of cosmic microwave background radiation provides strong evidence for the Big Bang theory and helps to support the understanding of the early universe's formation and evolution.

It serves as an important tool for studying cosmology and provides insights into the structure, age, and composition of the universe.

Know more about CMB:

https://brainly.com/question/30416668

#SPJ4

Answer:its b

Explanation:

Answer:

Sam is providing the biggest power i.e. 50 W

Explanation:

Sam is moving house and is carrying a 300N box of books up a flight of steps 5m high, it takes her 30 seconds.

Sam's power :

[tex]P_1=\dfrac{W_1}{t_1}\\\\P_1=\dfrac{F_1d}{t_1}\\\\P_1=\dfrac{300\times 5}{30}\\\\P_1=50\ W[/tex]

Gary follows her carrying a bag of clothes doing 1000 J of work; it only takes him 25 seconds.

Gary's power :

[tex]P_2=\dfrac{W_2}{t_2}\\\\P_2=\dfrac{1000}{25}\\\\P_2=40\ W[/tex]

So, it is clear that Sam is providing the biggest power.

Answer:

The correct option is;

B. Earth is currently experiencing a period of global warming

Explanation:

From the graph, we have;

1) From 1880 to 1900 the temperature anomaly (°C) averages a few degrees below the average surface temperature

2) The decrease below the average surface temperature is larger from  1900 to 1920

3) The surface temperature rises more steadily from below average to a little above average from 1920 to 1940

4) Between 1940 to 1980, the temperature hovers around the average surface temperature

5) The Earth's surface temperature is more or less steadily increasing from 1960 to present

Therefore, the Earth is experiencing a period of global warming

well, you get some DNA from both of your parents, so when you hear the phrase, "You have your mother's eyes!" That means you have some of your mother's DNA that gave you her eye color. The DNA you get from your parents help determine how you look today

Explanation:

The pH scale is an index ranging from 0-14 which measures the acidity or basicity of substances. The closer the pH of an acid to 0 the stronger it is and the closer the pH of a base to 14,the stronger it is.

Explanation:

Hooke's Law: Fe = kx

x = Fe / k = (22.0N) / (4.00N/cm) = 5.50cm.

10.00cm + 5.50cm = 15.50cm

The new length of the spring is 15.50cm.

Answer:

B

Explanation:

The force and friction cancel each other.

20N - 20N = 0N acting on the object.

Answer:

A. Athlete running in a race

Explanation:

Kinetic energy haves something to do with movement

Answer:

A. 12

Explanation:

Answer:

0.8J

Explanation:

Given parameters:

Force  = 20N

Compression  = 0.08m

Unknown:

Spring constant  = ?

Elastic potential energy  = ?

Solution:

To solve this problem, we use the expression below:

           F = k e

F is the force

k is the spring constant

e is the compression

             20  = k x 0.08

              k  = 250N/m

Elastic potential energy;

       EPE  = [tex]\frac{1}{2}[/tex] k e²    =  [tex]\frac{1}{2}[/tex]  x 250 x 0.08²

 Elastic potential energy = 0.8J

Answer:

c

Explanation:

energy doesnt affect to mass of a object

Answer:

A solids molecules are tightly packed to get her and an examle of a sold is a rock

Explanation: