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
riadik2000 [5.3K]
2 years ago
12

Need help with these 2 questions ??????!!!!! Hurry this is due soon

Physics
2 answers:
Readme [11.4K]2 years ago
7 0

Answer: The first one is A and C

Explanation:

jarptica [38.1K]2 years ago
3 0

Answer:

2 is A

3 is C

Explanation:

The reason why two is a is think of it like this. atoms have to be combined together to make a molecule. So in other words you need letters to create a word.

3 is c because in a recipe you have to have the right proportions. Just like you have to have the right proportions of atoms to create a molecule.

You might be interested in
A) A 12 kg object has a velocity of 37.5 m/s. What is its momentum?
Mkey [24]

Answer:

The answer would be 450 m kg/s

Explanation/ Explanation / Example:

Provided an object traveled 500 meters in 3 minutes , to calculate the average velocity you should take the following steps: Change minutes into seconds (so that the final result would be in meters per second). 3 minutes = 3 * 60 = 180 seconds , Divide the distance by time: velocity = 500 / 180 = 2.77 m/s .

If this doesn't help let me know!

4 0
2 years ago
The distance between the first and fifth minima of a single-slit diffraction pattern is 0.500 mm with the screen 37.0 cm away fr
WARRIOR [948]
In the single-slit experiment, the displacement of the minima of the diffraction pattern on the screen is given by
y_n= \frac{n \lambda D}{a} (1)
where
n is the order of the minimum
y is the displacement of the nth-minimum from the center of the diffraction pattern
\lambda is the light's wavelength
D is the distance of the screen from the slit
a is the width of the slit

In our problem, 
D=37.0 cm=0.37 m
\lambda=530 nm=5.3 \cdot 10^{-7} m
while the distance between the first and the fifth minima is
y_5-y_1 = 0.500 mm=0.5 \cdot 10^{-3} m (2)

If we use the formula to rewrite y_5, y_1, eq.(2) becomes
\frac{5 \lambda D}{a} - \frac{1 \lambda D}{a} =\frac{4 \lambda D}{a}= 0.5 \cdot 10^{-3} m
Which we can solve to find a, the width of the slit:
a= \frac{4 \lambda D}{0.5 \cdot 10^{-3} m}= \frac{4 (5.3 \cdot 10^{-7} m)(0.37 m)}{0.5 \cdot 10^{-3} m}=  1.57 \cdot 10^{-3} m=1.57 mm

7 0
3 years ago
A car is traveling at 24.0 m/s when the driver suddenly applies the brakes, causing the car to slow down with constant accelerat
Elan Coil [88]

Answer:

The answer to your question is : vf = 15.18 m/s

Explanation:

Data

vo = 24 m/s

d = 120 m

vf = ? when d = 60.0 m

Formula

              vf² = vo²  + 2ad

For d =100m

            a = (vf² - vo²) / 2d

            a = (0 -24²) / 2(100)

            a = -576/200

             a = 2.88 m/s²

Now, when d = 60

        vf² = (24)² - 2(2.88)(60)

        vf² = 576 - 345.6

        vf² = 230.4

        vf = 15.18 m/s

4 0
3 years ago
Read 2 more answers
Suppose you observe that at night, the air just above the ground feels cooler than the air above it. then in the middle of a sun
yanalaym [24]
The answer is convection
6 0
3 years ago
How do scientists classify species?
serious [3.7K]

Answer:

D. By comparing traits

Explanation:

Because age isn't genetic, as well as names, as well as who discovered, but traits are genetic.  

6 0
3 years ago
Read 2 more answers
Other questions:
  • A commuter train passes a passenger platform at a constant speed of 40.0 m/s. The train horn is sounded at its characteristic fr
    9·1 answer
  • Which of the following statements is true? The atmosphere is an example of a solution. In a glass of sugar water, sugar is the s
    5·2 answers
  • Do 3-7 for me? It is science and i hate doing science hw.
    15·1 answer
  • On an asteroid, the density of dust particles at a height of 3 cm is ~30% of its value just above the surface of the asteroid. A
    11·1 answer
  • What is an example of velocity?
    7·1 answer
  • What are the names of the components (each shown with a leader and a line) of a circuit shown in the diagram?
    5·1 answer
  • A rope is vibrating at high frequency. The length of the rope is 2.40 meters. A snapshot of the rope at a given moment in time
    9·1 answer
  • What is the gravitational force between two objects?​
    7·2 answers
  • A person is 88 J of work lifting a grocery bag straight off the ground to a height of 1.7 m what is a grocery bags mass
    6·1 answer
  • As a block falls through the air by 40 meter it does work equal to -1800 joule. Determine the mass of a block.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!