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
gavmur [86]
3 years ago
13

Honey solidifies from the bottom whereas water from the top. Why?

Physics
1 answer:
Lera25 [3.4K]3 years ago
7 0

Answer:

it is due to anamolous expansion of water as water cools from 4dg.c to 0dg.c. it expand making ice lighter than water to float

You might be interested in
A car moving 12m east, then 20m west . What is the displacement?
Ludmilka [50]

Answer:

8 m west

Explanation:

If we say east is the +x direction, and west is the -x direction, then the displacement is:

Δx = 12 m + (-20 m)

Δx = -8 m

8 0
3 years ago
You do 25 J of work to move a 4N object 5 meters. Find your efficiency and write down the formula.
daser333 [38]
4*5=20;  ration of 20:25, 
20/25= %80 
3 0
3 years ago
A ball is hit so that it accelerates at 10 m/s2. The ball hits a glove with a force of 5 N. What is the mass of the ball?
jenyasd209 [6]

Answer:

0.5 kg

Explanation:

» <u>Concepts</u>

Newton's second law, the Law of Acceleration, states that F = ma, where F = Force in Newtons, m = mass in kg, and a = acceleration in m/s^2.

» <u>Application</u>

We are asked to find the mass of the ball using the equation F = ma. We're also given the force and acceleration, so the equation looks like 5 = 10(m).

» <u>Solution</u>

Step 1: Divide both sides by 10.

  • 5/10=10m/10
  • m=0.5

Thus, the mass of the ball is 0.5 kg.

8 0
2 years ago
While flying at an altitude of 5.75 km, you look out the window at various objects on the ground. If your ability to distinguish
Bingel [31]

Answer:

the smallest separation between two objects is 0.8067 m

Explanation:

Given the data in the question;

Altitude h = 5.75 km = 5750 m

Diameter D = 4.0 mm = 0.004 m

λ = 460 nm = 4.6 × 10⁻⁷ m

Now, Using Rayleigh criterion for Airy disks resolution.

we know that, Minimum angular separation for resolving two points is;

θ = 1.22λ / D

so we substitute

θ = (1.22 × 4.6 × 10⁻⁷)  / 0.004

θ = 5.612 × 10⁻⁷ / 0.004

θ = 1.403 × 10⁻⁴ rad  

so minimum separation d_{min =  θh

so we substitute

d_{min = (1.403 × 10⁻⁴) × 5750 m

d_{min = 0.8067 m

Therefore, the smallest separation between two objects is 0.8067 m

6 0
3 years ago
The acceleration of a falling rock that was initially moving 5 m/s, and had a final velocity of 11 m/s after accelerating for 3
yanalaym [24]

Answer:

2 m/s²

Explanation:

Given:

v₀ = 5 m/s

v = 11 m/s

t = 3 s

Find: a

v = at + v₀

11 m/s = a (3 s) + 5 m/s

a = 2 m/s²

3 0
3 years ago
Other questions:
  • A square metal block with mass (m) is suspended by five wires with the same length. One of these wires is made of iron at the ce
    15·1 answer
  • Which is a FALSE statement about elements? Select one: a. Each element has its own neutron number. b. Each element has its own a
    9·1 answer
  • Compared to a cold object, a hotter object of the same size emits most of its light at __________ wavelengths and emits _____ li
    15·1 answer
  • Astronomers observe a spectral analysis of a distant star where a particular element has a spectral line with a wavelength of 66
    13·1 answer
  • An object moves along the x axis. The graph shows it’s position x as a function of time t. Find the average velocity of the obje
    7·1 answer
  • What is the only planet where a day lasts longer than a year?
    6·1 answer
  • PLEASE HELP I HAVE NO TIME PLEASEEE DONT SKIP
    11·1 answer
  • Which of the following describes a displacement vs. time graph that looks like this?
    14·1 answer
  • How do you find the net force of 225 N
    7·1 answer
  • Plz don't copy from other people. 100 points. Brainliest
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!