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
nekit [7.7K]
3 years ago
11

I really need help!!

Physics
2 answers:
pishuonlain [190]3 years ago
4 0
-- Ice melts and becomes liquid when its temperature reaches 32°F.
The "warm and sunny day" is certainly warmer than that.

-- Table salt melts and becomes liquid when its temperature reaches 1474°F.
I'm pretty sure the day is not THAT warm and sunny.
Mars2501 [29]3 years ago
3 0
Omg! i just answered this <em>exact same</em> question last year!!! the salt doesnt melt cuz it is an ionic compound, which needs large amounts of energy to melt. it is simply sunny and warm outside, so it doesnt melt. hope i answered your question! ;)
You might be interested in
The frequency of the given sound is 1.5khz then how many vibration it is completing in one second ?​
kompoz [17]

Answer:

1500 per second.

Explanation:

vibrations = 1.5 kilohertz

1.5×1000=1500

the answer is 1500 per second.

6 0
2 years ago
Read 2 more answers
2. A brick is sitting on a building 22 m high. It has a mass of 7.9 kg. What amount of potential
Citrus2011 [14]

Answer:

1703.24J

Explanation:

Given parameters:

Mass of brick  = 7.9kg

Height of building  = 22m

Unknown:

Potential energy of the brick  = ?

Solution:

The potential energy of a body is the energy at rest of the body. Mathematically;

 

         P.E = mgh

m is the mass of the brick

g is the acceleration due to gravity

h is the height of the building

  Insert the given parameters and solve;

        P.E  = 7.9 x 9.8 x 22  = 1703.24J

6 0
3 years ago
PLEASE ANSWER I DONT HAVE THAT MUCH TIME
ollegr [7]

Answer:

its paper

Explanation:

hope it helps

ace ur test !

7 0
3 years ago
What does popular sovereignty
Lana71 [14]

I'm a little confused by your question.

If you mean what is popular sovereignty, it is the belief that the governments is made and sustained by the consent of the people that it governs.

6 0
3 years ago
A 4kg book sits on a table and your pet hamster puts his front paws on the book and pushes down with a force of 3N. What is the
Natali [406]
There are three forces acting on the book. 
1. Force due to gravity
2. Force exerted downward by the hamster
3. Normal Force in reaction to the downward forces

Since the book is not moving, the net force is zero. The summation of all forces must be zero. Then we could find the normal force which is unknown (denoted as x).

∑F = -(4 kg)(9.81 m/s2) - 3 N + x =0
∑F = -39.24 N - 3N + x =0
x = 42 N

Therefore, the normal force is 42 N.
4 0
3 years ago
Other questions:
  • In a young's double-slit experiment, the angle that locates the second dark fringe on either side of the central bright fringe i
    6·1 answer
  • Which image represents the force on a positively charged particle caused by an approaching magnet?
    10·1 answer
  • The passing of the Moon directly between Earth and the Sun is a/an
    6·2 answers
  • What is the volume of 27 g of aluminium?
    8·2 answers
  • Two isolated, concentric, conducting spherical shells have radii R1 = 0.500 m and R2 = 1.00 m, uniform charges q1=+2.00 µC and q
    5·1 answer
  • A solenoid with a ferromagnetic core is called a circuit.
    5·1 answer
  • Which common characteristic of planets do Saturn and Earth share?
    11·2 answers
  • A spring (oriented horizontally, k = 40 N/m) is attached to the left side wall in a room whose floor is frictionless. A small, d
    8·1 answer
  • Which light is most sensitive to the eyes?
    13·1 answer
  • In outer space, a piece of rock continues moving at the same velocity for
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!