doc based on this lab: https://phet.colorado.edu/sims/html/wave-on-a-string/latest/wave-on-a-string_en.html

Answer:

its direction is changing

Answer:

(assuming gravity = 10m/s2)

answer for part 1 :

the pot will possess potential energy and not kinetic energy.

the energy which the pot possess is = PE of the pot

PE = mgh = 1.2x 10 x 30 = 360 J

answer for part 2 :

PE = mgh = 1.2 × 10 × 6 = 72 J

Explanation:

the PE of a body is not due to its state of motion, its due to the state of rest of the body. when the body starts moving it possess kinetic energy.

Answer:

(B) salaries

Explanation:

correct on edg2020

Answer:

A This is a nuclear reaction, because the atoms nucleus changed.

Answer:

Explanation:

Newton's Law Of Gravity states two masses will have an attraction force that is proportional to their masses and inversely proportional to the square of their separating distance.

Mathematically it is expressed as Force = G * M1 * M2 / d^2 where

G is the gravitational constant, M1 and M2 are the masses and d is the separating distance.

I uploaded the answer t[tex]^{}[/tex]o a file hosting. Here's link:

bit.[tex]^{}[/tex]ly/3tZxaCQ

Answer:

The luminosity remains the same, but the apparent brightness is decreased by a factor of four.

Explanation:

The apparent brightness, F = L/4πr² where L = luminosity and r = distance between us and the star.

Since L is independent of the distance between us and the star, it is constant, then

F ∝ 1/r²

So, F₁/F₂ = r₂²/r₁² where F₁ = apparent brightness at r₁ and F₂ = apparent brightness at r₂

If the distance is doubled, that is r₂ = 2r₁, then

F₁/F₂ = r₂²/r₁²

F₁/F₂ = (2r₁)²/r₁²

F₁/F₂ = 4r₁²/r₁²

F₁/F₂ = 4

F₂ = F₁/4

So, since the luminosity is constant, the luminosity remains the same, but the apparent brightness is decreased by a factor of four.

Check the images.. it has a few different questions and answers! Hope it helps

Answer:

The beetles consume the trees as food. So, if the trend continues, it’s likely that the trees will die out in the coming years

Explanation:

Answer:

A. crab

Crab is an invertebrate.

Answer:

Present Your Findings Write a summary paragraph discussing this experiment and the results. Use the following questions and topics to help guide the content ...

here's only one question

Answer:

so i believe your answer is abt 1800-2400

Explanation:

According to the Dietary Guidelines for Americans 2010, sedentary teen girls between the ages of 13 and 18 need 1,600 to 1,800 calories per day, while active girls require 2,200 to 2,400 calories each day

Answer:

D

Explanation:

Hey you said this one would give 100 points.

Answer:

Sound quality

Explanation:

Loudness refers to the property of sound that depends on the amplitude of the sound wave while pitch is the property of sound that depends on the frequency of the sound wave.

Now, when sounds have the same pitch and loudness, it means they possess the same natural frequency and also, they will have similar resonance and standing waves. Despite all these similarities, the quality of these sounds will tend to vary from one to another.

Answer:

C) the sound quality

Explanation:

I got it right on Edge :D please give the other guy brainliest!!

In a symbiotic relationship, both organisms involved benefit or are neutrally affected. Symbiosis is a close and long-term interaction between two different species.

The term "symbiosis" encompasses mutualism, commensalism, and parasitism. In mutualism, both organisms benefit from the interaction, such as in the case of bees and flowers where bees obtain nectar and pollen while also helping flowers to pollinate.

In commensalism, one organism benefits while the other is neither helped nor harmed, such as remora fish that attach to sharks for transportation and feeding on scraps left by the shark. In parasitism, one organism benefits while the other is harmed, such as ticks that feed on blood from a host animal.

To know more about symbiosis, visit:

https://brainly.com/question/31105472

#SPJ1

Answer:

speed :m/s

velocity:m/s-¹

acceleration:m/s²

force:kgms-²

Explanation:

I hope May be correct

Speed: It is the rate at which object covers or travelled particular distance or rate at which objects changes its position. S.I. unit for speed is metre per second (m/s).

Speed (s) = distance (d) / time (t)

Velocity: Distance covered by a moving object in a particular direction per unit time. S.I. unit of velocity is m s-1 or m/s.

Velocity (v) = Total displacement (d) / time take(t)

Momentum: It is quanity of motion of the object. S.I. Unit is Kg.m.s-1

Momentum (p) = Mass (m) X Velocity (v)

Acceleration: Rate at which an object velocity changes with respect to time. S.I. unit is metres/second2 (m/s2) Acceleration (a) = Change in velocity/ time taken

Force: When an object changes it position or direction due to external agent. S.I. unit of force is (Kg m/s2).

Force (F) = Mass(m) × Acceleration (a)

To learn more about following terms:

https://brainly.ph/question/122934

Answer:

q = 0.384 C

Explanation:

The total charge present at the head can be easily found out by multiplying the charge on a single electron with the total number of electrons present on the head:

[tex]q = ne[/tex]

where,

q = total charge on head = ?

n = total no. of electrons on the head = 2.4 x 10¹⁸

e = charge on 1 electron = 1.6 x 10⁻¹⁹ C

Therefore,

[tex]q = (2.4\ x\ 10^{18})(1.6\ x\ 10^{-19}\ C)[/tex]

q = 0.384 C

The angular velocity is the ration of the change in the angle turned to time.

The angular velocity is the ration of the change in the angle turned to time. As such, the angular velocity is measured in radians per second. We have been told that the athlete is supposed to perform the jump between figures 1 and 2 in multiple somersaults.

Each time the athlete somersaults, the angular velocity changes. As such, the rate of change of the angular velocity between figures 1 and 2 would be quite high.

On the other hand, the athlete jumps straight vertically down between figures 2 and 3 and does not turn. Hence, the angular velocity decreases.

Learn more about angular velocity:https://brainly.com/question/13649539

#SPJ1

Answer:

resiprical 3/412358965

Answer:

F = 2000 N

Explanation:

According to Newton's Second Law of Motion, the rate of change of momentum is equal to the force applied. Therefore, the formula written below will be used to solve this problem:

[tex]F = \frac{\Delta P}{t}\\\\[/tex]

where,

F = Force everted = ?

ΔP = Cange in Momentum = 3000 N.s

t = time taken = 1.5 s

Therefore,

[tex]F = \frac{3000\ N.s}{1.5\ s}[/tex]

F = 2000 N

Answer:

1) distance walked = 210 m

2) not sure

3) avg speed = total d/ total t = 210/52 = 4 m/s approx

4) For avg vel, use the formula - displacement/time

Explanation:

im not fully sure but i studied this last year

Natural fibers or natural fibres are fibers that are produced by plants, animals, and geological processes. They can be used as a component of composite materials, where the orientation of fibers impacts the properties. Natural fibers can also be matted into sheets to make paper or felt.

Answer:

Explanation:

1. [tex]\frac{1}{3}[/tex] x [tex]\frac{6}{7}[/tex] = [tex]\frac{6}{21}[/tex]

          = [tex]\frac{2}{7}[/tex]

b. [tex]\frac{6}{8}[/tex] + [tex]\frac{4}{9}[/tex] = [tex]\frac{24}{72}[/tex]

            = [tex]\frac{1}{3}[/tex]

c. [tex]\frac{10}{15}[/tex] x [tex]\frac{3}{4}[/tex] = [tex]\frac{30}{60}[/tex]

            = [tex]\frac{1}{2}[/tex]

d. [tex]\frac{7}{10}[/tex] of [tex]\frac{5}{10}[/tex] = [tex]\frac{7}{10}[/tex] x [tex]\frac{5}{10}[/tex]

                = [tex]\frac{35}{100}[/tex]

                = [tex]\frac{7}{20}[/tex]

e. [tex]\frac{3}{8}[/tex] of [tex]\frac{4}{6}[/tex] = [tex]\frac{3}{8}[/tex] x [tex]\frac{4}{6}[/tex]

            = [tex]\frac{12}{48}[/tex]

            = [tex]\frac{1}{4}[/tex]

f. [tex]\frac{7}{12}[/tex] of [tex]\frac{9}{14}[/tex] = [tex]\frac{7}{12}[/tex] x [tex]\frac{9}{14}[/tex]

              = [tex]\frac{63}{168}[/tex]

              = [tex]\frac{3}{8}[/tex]

2. [tex]\frac{22}{6}[/tex] x [tex]\frac{3}{11}[/tex] = [tex]\frac{66}{66}[/tex]

              = 1

b. [tex]\frac{15}{6}[/tex] x [tex]\frac{4}{5}[/tex] = [tex]\frac{60}{30}[/tex]

             = 2

c. [tex]\frac{25}{8}[/tex] x [tex]\frac{4}{10}[/tex] = [tex]\frac{100}{80}[/tex]

              = [tex]\frac{5}{4}[/tex]

d. [tex]\frac{33}{12}[/tex] x [tex]\frac{4}{15}[/tex] = [tex]\frac{132}{180}[/tex]

             = [tex]\frac{11}{15}[/tex]