Jimmy is cooking pasta in a pot of water on the stove. He uses a stopwatch to see how long the pasta takes to cook depending on the temperature of the water in the pot. What is the independent variable and why?

Answers

Answer 1

Answer:

stove

Explanation:

The stove is the independent variable in this question as it does not depend on anything like other variables such as pot, water, temperature and of cause pasta.

The pot depends on the stove, the water depends on the pot and stove, the pasta depends on the water and its temperature.

Cheers.  


Related Questions

Plants are eaten by grasshoppers, which are eaten by mice, which are eaten by snakes.

Answers

Answer:

food chain / web lol? was this a question?

What type of wave is created here?
A) longitudinal
B) transverse

Help me plssss!!!

Answers

Answer:

b

Explanation:

Answer:

this is a longitudinal wave!!!

Explanation:

because you can see the compressions and rarefactions.

If a 2 kg spring is compressed by exerting a force of 10 newtons a distance of 50 cm how much work is done?

Answers

convert cm into meters,
50/100=0.5m

work done= 10x0.5
=5J

we dont consider the weight of the spring as it acts downwards.

In which of these can plasma be
found?

lightning
neon signs
microwave ovens
all of these

Answers

Answer:

The sun and other stars consist of plasma. Plasma is also found naturally in lightning and the northern and southern lights. Human-made plasma is found in fluorescent lights, plasma TV screens, and plasma spheres

Explanation:

hope this helps if so mark me brainliest <3

Plasma can be found in lightning, therefor the answer for the above question is option A.

a girl is riding her bike and coasting down a hill. When she gets to the bottom of the hill, her bike continues to move without her pedaling. What type of energy is her bike using ?

a. potential
b. kinetic
c. solar
d. thermal

y’all, i have so many more questions

Answers

Answer:

Her bike is using kinetic energy

B

Explanation:

Which factor is a component of skill-related fitness?

Answers

Answer:

There are six skill-related fitness components: agility, balance, coordination, speed, power, and reaction time. Skilled athletes typically excel in all six areas. Agility is the ability to rapidly and accurately change the direction of the body.

Explanation:

Suppose a worker is pushing a
wheelbarrow. He used a force of 625N to
perform 3500J of work on the wheelbarrow.
How far did he push it?
F 5.6 m
G
0.18 m
H
10.2 m
J
14.3 m

Answers

Answer:

5.6m

Explanation:

given

Applied force(F)=625N

workdone(w)=3500J

distance travelled by wheel barrow(s)=w/F

= 3500/625

= 5.6m

Which best explains how thermal energy is transferred when someone holds a hand above a fire?

a) It is transferred by conduction and radiation.
b) It is transferred by only convection.
c) It is transferred by only conduction.
d) It is transferred by radiation and convection.

Answers

According to my calculations the answer should be A. If not so sorry

Calculate the weight in Newtons of a person who has a mass of 69 kg.

Answers

I believe the answer would be 676.65885 rounded to 676.7
just multiply by 10,

69 x 10= 690N

What are some of the similar features of position vs time and velocity vs time

Answers

I agree with the other comment

a girl stands 1.5 m in front of a plane mirror, what is the distance of her image,and what are four image characteristics

Answers

Answer:

the distance to the image is 1.5 m

Explanation:

To find the position of the image let's use the equation of the constructor

       [tex]\frac{1}{f} = \frac{1}{p} + \frac{1}{q}[/tex]

where p and q are the distance to the object and the image, respectively, and f is the focal length.

In this case a plane mirror has a focal length at infinity, if we substitute in the equation

        1 / p = - 1 / q

         q = -p

therefore the distance to the image is 1.5 m

this image has some characteristics:

* It is a virtual image, this means that light rays do not pass through it

* It is a right image, that is, the image is in the same direction of the object.

* the magnification is 1, since the height of the image and the object are the same

* has the right - left direction reversed

A layer of water Δx m thick which lies x m above the bottom of the tank will be rectangular with length 8 m. Using similar triangles, we can see that it will have widt of_____m

Answers

Answer:

x

Explanation:

The question relates to the energy required to pump water out of the

spout at the top of the triangular prism tank.

The width of the layer of water Δx thick is x m.

Reasons:

The location of the layer Δx m thick = x meters above the bottom

The length of the triangular (cross-section) prism tank = 8 meters

The length of the layer Δx thick layer = 8 meters

From the attached drawing of the cross-section of the tank, we have;

The height of the triangular tank cross-section = 3 meters

The length of the base of the triangular cross-section = 3 meters

By similar triangles, we have;

[tex]\dfrac{Height \ of \ Tank}{Base \ length \ of \ tank}= \dfrac{Height \ of \ layer \ with \ thickness \ \Delta x }{Width \ of \ layer \ with \ thickness \ \Delta x}[/tex]

Which gives;

[tex]\dfrac{3}{3} =\dfrac{x}{Required \ width}[/tex]

[tex]\dfrac{3}{3} =1 = \dfrac{x}{Required \ width}[/tex]

Required width × 1 = x

The required width = x m

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what were the difficulties ​

Answers

What do u mean about that
what do you mean about this

Which force is an attractive force that is affected by the masses of objects?
A) tension force
B) magnetic force
C) normal force
D) gravitational force

Class: Physical Science B

Answers

Answer:

D) gravitational force

a train is sitting still at the top of 990-m mountain. it then coasts down the mountain and back up another mountain that is 520 m high. what is the train's speed at the top of the second hill?

Answers

Answer:

Explanation:

At the top of 520 m high mountain , the train will lose potential energy due to loss of height from 990 m to 520 m and gain kinetic energy .

Loss of height = 990 - 520 = 470 m

Loss of potential energy = m x g x 470 where m is mass of the train .

Gain of kinetic energy = 1/2 m v² where v is velocity of train at the top of 550 m high mountain .

1/2 m v² = m x g x 470

v² = 2 x 9.8 x 470

v = 95.98 m /s

Why would a cell phone not make a sound in space?

Answers

Answer:

because there is no sound in space

sound can't be heard in space due to no molecules for them to vibrate against or travel by, due to the vacuum of space.
It on googIe

Which has the greater volume?
A. wood
B. white block
C. equal

Answers

Answer:

B.white block

hope it's the answer ....❤❤❤❤❤❤

It should be white block depends

When the
temperature of the air in a
hot air balloon increases,
what happens to the
volume of the gas?

Answers

Answer:   What do you think happens to the volume of gas inside the balloon? As the temperature increases, the gas particles absorb more heat energy. They speed up and move farther away from one another. So the increase in temperature causes an increase in volume.

Explanation:

Which changes with location?
1weight and gravity
2gravity
3weight
4mass ​

Answers

Answer:

fxfvhzsegjyfetvhtde ftgfrdedddfvygy

Explanation:

mass

John flies directly east for 20km, then turns to the north and flies for another 10 km before dodging a flock of geese. what’s the distance and displacement?

Answers

Answer:

displacement:  22.4 distance  30km

Explanation:

hope I helped

The required distance and displacement are both approximately 22.36 km.

What are Pythagorean triplets?  

In a right-angled triangle, its sides, such as the hypotenuse, are perpendicular and the base is Pythagorean triplets.

Here,
The distance John travels is the total length of his path, which can be found using the Pythagorean theorem since he forms a right-angled triangle:

Distance = √(20² + 10²) = √500 = 10√5 ≈ 22.36 km

To find the displacement, we need to draw a straight line from John's starting point to his ending point, which forms the hypotenuse of the right-angled triangle. The length of this line is the displacement.

The displacement is equal to the distance between John's starting point and his ending point, which can be found using the Pythagorean theorem as well:

Displacement = √20² + (10 km - 0 km)²
                       = √400 + 100 = √500
                       = 10√5 ≈ 22.36 km

So, the distance and displacement are both approximately 22.36 km.

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Can anyone please help meee!!!​

Answers

Answer:

The centripetal acceleration is given by  

a = v 2 r = 10 2 25 = 4   m s − 2

Using Newton's Second Law, the centripetal force acting is  

F = m a = 900 ⋅ 4 =3600 N

Explanation:

HELPPPPPPP!!!!!

why are cations drawn towards cathode and anions towards anode?​

Answers

Explanation:

Cations are positive and anions are negative, since opposite charged attract, the cations are drawn towards the cathode, which is the negatively charged electrode and anions are drawn towards the anode (positive electrode)

Answer:

because cations are negatively charged particles and their attracted towards a positive electrode that is anode while anions and positively charged particles and I attracted towards the negative electrode that is cathode

Explanation:

Two charged objects originally felt 12N of attraction. One charge

is changed from 3C to 6C and their distance changes from 15cm

apart to 45cm apart. What is the new force of attraction?

Answers

Answer:

The new force of attraction will be [tex]F_{new}=2.67\: N[/tex]

Explanation:

The electrostatic force equation is given by:

[tex]F=k\frac{q_{1}q_{2}}{r^{2}}[/tex]

Where:

q(1) is the first charge, let's use this one to the 3 Cq(2) is the second charger is the initial distance (r = 0.15 m)

Then, the original force could express as:

[tex]F_{original}=k\frac{3q_{2}}{0.15^{2}}=12[/tex]

This force is 12 N.

Now, we know that q(1) changes its value to 6 C and the new distance between the charges is 0.45 m, which means:

[tex]F_{new}=k\frac{6q_{2}}{0.45^{2}}[/tex]

We can rewrite this force in terms of the original force.

[tex]F_{new}=k\frac{2\cdot 3q_{2}}{(3\cdot 0.15)^{2}}[/tex]

[tex]F_{new}=\frac{2}{9}k\frac{3q_{2}}{0.15^{2}}[/tex]

[tex]F_{new}=\frac{2}{9}F_{original}[/tex]

[tex]F_{new}=\frac{2}{9}12[/tex]

Therefore, the new force of attraction will be [tex]F_{new}=2.67\: N[/tex]

I hope it helps you!

most of the energy we use on earth comes from the sun—how does that energy(light and thermal)end up?

As ____energy in our food
As ____energy of wind or moving water
As ____energy that was our lights
As ____energy when we move around

Answers

most of the energy we use on earth comes from the sun—how does that energy(light and thermal)end up?

As ____energy in our food

A golfer collected data on the distance a golf cart traveled in a straight line and plotted it on a graph
Which of these does NOT describe the cart’s motion on this graph?
The cart was at rest between 5 s and 7 s.
The cart moved toward the starting point between 7 s and 12 s.
The cart moved away from the starting point between 8 s and 10 s.
The cart moved away from the starting point between 2 s and 5 s.

Answers

Answer:

The cart moved away from the starting point between 8 s and 10 s.

Explanation:

Given that :

Which of these does NOT describe the cart’s motion on this graph?

The cart was at rest between 5 s and 7 s : From the distance of golf cart Vs time graph ; the car was at rest between 5s and 7s as the graph was flat with that time interval, meaning there was no change in distance.

The cart moved toward the starting point between 7 s and 12 s. : The graph depicts a negative slope at this time interval as the distance from starting point fell from about 26 m to 10 m

The cart moved away from the starting point between 8 s and 10 s. : At this time interval, the cart moved towards the starting not and not away. This could be seen in the decrease in Distance from starting point between the tune interval.

The cart moved away from the starting point between 2 s and 5 s. - - > The cart moved away from the starting point, with the positive slope signifying an increase in distance.

Therefore, The cart moved away from the starting point between 8 s and 10 s does not describe the motion of the cart on the graph.

A spring has a constant of 875 N/m. What hanging mass will cause this spring to stretch 4.5 m?

Answers

Answer:

8) A hanging 7.5 kg object stretches a spring 1.1 m. What is the spring constant? 1 . 1 66. 82 NIMO 9) A spring has a constant of 875 N/m. What hanging mass will cause this spring to stretch 4.5 m? Iouliply then divide 875 X 4. 2- - (4 04. 7919) 10) A spring with a spring constant of 25 N/m is stretched 65 cm. What was the force used? 11) A 25 N force stretches a spring 280 cm. What was the spring constant? 12) A 75 N force stretches a spring 175 cm. What was the proportionality constant? 8) 66.82 N/m 9) 401.79 kg 10) 16.25 N 11) 8.93 N/m 12) 42.86 N/m

Explanation:

A spring has a constant of 875 N/m. and the mass which will cause this spring to stretch 4.5 meters is 401.78 kg.

What is Spring constant?

The spring constant is a characteristic of a spring which is defined as the ratio of the force affecting the spring to the displacement which is caused by that force. The SI unit of spring constant is N.m⁻¹ (Newton per meter).

The spring constant is:

F = -k/ x

where, k is the spring constant

F denotes the force,

and x denotes the change in the length of the spring.

k = 875N/m

x = 4.5m

We know that

Kx = mg

m= kx/ g

m = 875 × 4.5/ 9.8

m = 401.78kg

Therefore, the mass which will cause this spring to stretch 4.5 meters is 401.78 kg.

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Tiny cell structure that carry out specific functions within the cell

Answers

Answer:

Organelles

Explanation:

I learned this in science.

1. If a rock is dropped from a 600 meter cliff, how long will it take to hit the ground?
Dl

Answers

Answer:

11.1s

Explanation:

Given parameters:

Height of cliff  = 600m

Unknown:

How long it takes to hit the ground  = ?

Solution:

To solve this problem, we use one of the kinematics equation;

    H  = ut  +  [tex]\frac{1}{2}[/tex]gt²  

H is the height

u is the initial velocity  = 0m/s

t is the time taken

g is the acceleration due to gravity

             600 = [tex]\frac{1}{2}[/tex] x 9.8 x t²  

              600  = 4.9t²  

                 t²  = 122.5

                 t  = 11.1s

a girl pushes her little brother down a snowy hill on a sled and he rides quickly to the bottom of the hill

which one of Newton's Laws is this ​

Answers

Answer:

Newton's First Law of Motion.

Explanation:

Inertia can be defined as the tendency of an object or a body to continue in its state of motion or remain at rest unless acted upon by an external force.

In physics, Sir Isaac Newton's First Law of Motion is known as law of inertia and it states that, an object or a physical body in motion will continue in its state of motion at continuous velocity (the same speed and direction) or, if at rest, will remain at rest unless acted upon by an external force.

In this scenario, a girl pushes her little brother down a snowy hill on a sled and he rides quickly to the bottom of the hill. The push from the little boy's sister is the external force acting on him and consequently, causing him to be in motion down the snowy hill.

Most personal computers have a firewall and virus protection. Why are these
security programs needed?
A. They keep people from storing personal information on the
computer.
B. They keep harmful programs from entering the computer from the
Internet.
C. They keep analog signals from entering the computer from the
Internet.
D. They make sure digital information is sent out as a digital signal.

Answers

Answer:

B. They keep harmful programs from entering the computer from the

Internet.

Explanation:

Did the test !

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