1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
inysia [295]
3 years ago
5

Which best explains why making a pancake from batter is an example of a chemical change?

Physics
2 answers:
kenny6666 [7]3 years ago
8 0

Answer:

A. the pancake that forms is a different state of matter.

Explanation:

because the pancake mix is liquid ,and when you cook it you for a solid.

DanielleElmas [232]3 years ago
7 0

Answer:

The answer is C. A new substance forms when the batter is cooked.

Explanation:

I had taken the test and got it right.

You might be interested in
Name all the harry potter books 1-7
miss Akunina [59]

Answer:

1) Harry Potter and the Philosophers Stone (Sorcerers Stone)

2) Harry Potter and the Chamber of Scerets

3)Harry Potter and the Prizoner of Azkaban

4) Harry Potter and the Goblet of Fire

5) Harry Potter and the Order of the Phonix

6) Harry Potter and the Half-Blood Prince

7) Harry Potter and the Deathy Hallows

Explanation:

3 0
2 years ago
Read 2 more answers
Which property makes radio waves most useful for communication? They have low frequencies. They have long wavelengths. They tran
Mila [183]
I think it would be that they have long wavelengths
6 0
4 years ago
Read 2 more answers
A roller coaster car is traveling on a track without any friction or added energy. The people, car, and track of the roller coas
Harlamova29_29 [7]

Answer:

This might not be right but i think it is "Speedway Coasters, Inc., reserves the right to exact a $50.00 fine"

Explanation:

3 0
4 years ago
Read 2 more answers
A 500 g model rocket is on a cart that is rolling to the right at a speed of 3.0 m/s. The rocket engine, when it is fired, exert
liberstina [14]

Answer:

x = 7.62 m

Explanation:

First we need to calculate the weight of the rocket:

W  = mg

we will use the gravity as 9.8 m/s². We have the mass (500 g or 0.5 kg) so the weight is:  

W  = 0.5 * 9.8 = 4.9 N

We know that the rocket exerts a force of 8 N. And from that force, we also know that the Weight is exerting a force of 4.9. From here, we can calculate the acceleration of the rocket:

F - W = m*a

a = F - W/m

Solving for a:

a = (8 - 4.9) / 0.5

a = 6.2 m/s²

As the rocket is accelerating in an upward direction, we can calculate the distance it reached, assuming that the innitial speed of the rocket is 0. so, using the following expression we will calculate the time which the rocket took to blast off:            

y = vo*t + 1/2 at²

y = 1/2at²

Solving for t:

t = √2y/a

t = √2 * 20 / 6.2

t = √6.45 = 2.54 s

Now that we have the time, we can calculate the horizontal distance:

x = V*t

Solving for x:

x = 3 * 2.54 = 7.62 m            

4 0
4 years ago
Light of wavelength O is passed through a diffraction grating with N lines/meter and then lands on a screen a distance L from th
rodikova [14]

Condition for diffraction

dsin\theta = m\lambda

Where

a = Distance between slits

m = Order of the fringes

\lambda = Wavelength

\theta = At the angle between the ray of light and the projected distance perpendicular between the two objects

For small angles

sin\theta = \approx tan\theta

Where

tan\theta = \frac{Y}{L}

Where L is the distance between the slits and Y the length of the light.

Replacing we have

d\frac{Y}{L} = \lambda m

Y = \frac{m\lambda L}{d}

The distance between slits d can be expressed also as d= \frac{L}{N} Where N is the number of the fringes, then

Y_n = mN\lambda L

Similarly when there is added a new Fringe we have the change of the distance would be :

Y_{n+1} = (m+1)N\lambda L

Linear distance between fringes is

\Delta Y = \Delta Y_{m+1}-Y_m

\Delta Y = (m+1)N\lambda L - mN\lambda L

Therefore the answer is

\Delta Y = N\lambda L

8 0
3 years ago
Other questions:
  • A car Excel accelerates from the rest to a velocity of 5 m in four seconds what is the average acceleration
    8·1 answer
  • The deuterium nucleus starts out with a kinetic energy of 1.24 × 10-13 joules, and the proton starts out with a kinetic energy o
    12·1 answer
  • Question 4
    10·1 answer
  • In forced convection, the fluid is forced to move by external means such as a fan, pump, or the wind. You must provide an answer
    11·1 answer
  • What will be the pressure exerted by the object if 5000N of the force is acting on an area of 200 cm square
    8·2 answers
  • A person is walking on a treadmill. The treadmill is moving backwards at a speed of 3.0 m/s. The person is moving forward relati
    9·1 answer
  • If a car changes ita velocity from 32km/hr to 54km/hr in 8.0 seconds, what is its acceleration
    7·1 answer
  • A nonconducting sphere of diameter 10.0 cm carries charge distributed uniformly inside with charge density of +5.50 µC/m3 . A pr
    13·1 answer
  • A fuse in an electric circuit is a wire that is designed to melt, and thereby open the circuit, if the current exceeds a predete
    8·1 answer
  • At a sudden contraction in a pipe the diameter changes from D 1 to D 2 . The pressure drop, Δ p , which develops across the cont
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!