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
Tomtit [17]
3 years ago
14

Please , physics. A and B

Physics
1 answer:
stepladder [879]3 years ago
7 0

Answer:

a. -5,4

b. 28

Explanation:

(see how to solve in pic)

You might be interested in
When it is winter in the northern hemisphere we are receiving?
Vitek1552 [10]

Answer:

indirect sunlight

Explanation:

we're receiving some sunlight, but not much, if it's winter in one place, it's summer in another

8 0
3 years ago
Read 2 more answers
I drop an egg from a certain distance and it takes the egg 3.74 seconds to reach the ground. How high up was the egg?
Slav-nsk [51]

Answer:

The height from which the egg is dropped is <u>68.54 m</u>.

Explanation:

Given:

Initial velocity of egg is, u=0\ m/s(Dropped means initial velocity is 0)

Time taken is, t=3.74\ s

Acceleration experienced by egg is due to gravity, a=g=9.8\ m/s^2

The height from which the egg is dropped is, d=?

Now, we use Newton's equation of motion that relates the distance, initial velocity, time and acceleration.

So, we have the following equation of motion:

d=ut+\frac{1}{2}at^2

Plug in all the given values and solve for 'd'. This gives,

d=0+\frac{1}{2}\times 9.8\times (3.74)^2\\\\d=\frac{1\times 9.8\times 13.9876}{2}\\\\d=\frac{137.078}{2}\\\\d=68.54\ m

Therefore, the height from which the egg is dropped is 68.54 m.

8 0
3 years ago
Chanel has some cotton candy that came in a cloudy shape. She wants to make it more dense. Which describes the candy before and
Juliette [100K]
<span>The candy before has undergone physical change after manipulation because it says that it will make the cotton candy denser. Making it denser probably doesn't have to change any chemical components of the candy.</span>
8 0
3 years ago
Read 2 more answers
7. Explain why red plastic wrap appears to be red??
jolli1 [7]

Answer:

Cause of how light reflects on to it

7 0
3 years ago
An increase of 50 dB increases the sound intensity by a factor of
Artemon [7]

A factor of 50dB = a factor of 10^(50/10) = 10^5 = a factor of <em>100,000</em> .


5 0
4 years ago
Other questions:
  • The general electron configuration for atoms of the halogen group is
    13·1 answer
  • When you close the switch the needle of the voltmeter moves indicating that a flow of electrons is passing through the cell what
    8·1 answer
  • Electric potential energy is a characteristic of the electric field? True or False
    7·2 answers
  • Materials in which electric charges move freely such as copper and aluminum are called
    5·1 answer
  • Both deltas and mountains are
    10·1 answer
  • An ionic compound is not represented by a molecular formula because an ionic compound is
    14·1 answer
  • Which layer confirms that this sample is soil rather than a mineral mixture? A) silt B) clay C) sand D) organic matter
    7·1 answer
  • What is a volumetric flask
    12·1 answer
  • Which chemical reaction is the fastest?
    11·1 answer
  • 5.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!