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
bogdanovich [222]
3 years ago
8

Which conditions are necessary for snow to form?

Physics
1 answer:
Anastasy [175]3 years ago
3 0
Cold weathers like Antarctica
You might be interested in
A hydraulic press has a safety feature which consists of a hydraulic cylinder with a piston at one end and a safety valve at the
Sergio039 [100]

Answer:

Explanation:

radius of cylinder r₁ = .02 m

radius of safety valve r₂ = .0075 m

force exerted by spring on safety valve = 950 x .0085 = 8.075 N .

Force required on piston of cylinder = F

Applying Pascal's law

8.075 / 3.14 x .0075²  =  F / 3.14 x .02²

F = 8.075 x .02² / .0075²

= 8.075 x 7.111

= 57.42 N .

6 0
3 years ago
How long in seconds will it take a car traveling at 100 miles/hour to travel the length of an American Football field?
Mrrafil [7]

Answer:

It will take 2.45 seconds.

Explanation:

A football field measured 120 yards, that is arround 0.068 miles, the car is moving with a constant speed so the formula we have to apply for this is:

t=\frac{x}{v}\\where\\x=distance\\v=speed\\

t=\frac{0.068}{100}\\t=0.00068hrs

in order to obtain the time in seconds:

tsec=0.00068hr*(\frac{3600sec}{1hr} )\\tsec=2.45 sec

6 0
3 years ago
What is the name of the galaxy in which the earth resides?
Crazy boy [7]
The answer is the Milky Way .
6 0
3 years ago
17. A 120 m long train is moving in a direction with speed 20 m/s. A train B moving with 30
nydimaria [60]
Answer is D.

Speed:
Use relative speed to simplify the situation. Since the trains are moving in opposite directions, you can add the speeds and pretend the first train is stationary (moving at 0m/s) and the second train is moving at 50m/s.

Distance:
The front of the second train needs to travel 120m to get from the front to the back of the first train. When the front of the second train is at the back of the first train, the back of the second train is still 10m in front of the first train. The back therefore has to travel 130m to clear the first train. The total distance over which the trains are overlapping in this scenario is therefore 120 + 130 = 250m.

You have speed and you have distance so now just calculate time:

v = d / t
50 = 250 / t
t = 5s
4 0
3 years ago
Contact lenses are designed to be gas permeable in order to allow oxygen to diffuse to the eye. If the edge of a contact lens is
guapka [62]

Answer: A

The diffusion time through the edge is double the diffusion time through the center.

Explanation:

Only the diffusion coefficient, thickness, surface area, distance affects the time it takes a gas such as oxygen to diffuse a given in a medium. The Diffusion time increases with the square of diffusion distance  Also, the Increased surface area increases the rate of diffusion or the diffusion time, whereas a thicker membrane reduces the rate of diffusion or time it takes the gas to be permeable. Also, The greater the distance that a substance must travel, the slower the rate of diffusion The diffusion coefficient determines the time it takes a gas to diffuse. Also the Diffusion time is inversely proportional to the diffusion coefficient.

Now, If the edge of a contact lens is double the thickness of the central portion of the lens, then it will take more time for the gas to diffuse through the thicker portion. since its edge is double the central position, then the diffusion time will also be doubled. So Option A is the best answer-

The diffusion time through the edge is double the diffusion time through the center.

6 0
4 years ago
Other questions:
  • A 1.0-mm-diameter ball bearing has 2.0 * 109 excess electrons. what is the ball bearing's potential?
    14·1 answer
  • A 56.3 N force is required to accelerate a toy rocket at 19.6 m/s squared.What must be the mass of the rocket (3 sig digs)
    11·1 answer
  • A metal sphere with radius ra = 1.30cm is supported on an insulating stand at the center of a hollow, metal, spherical shell wit
    5·1 answer
  • What is the atomic mass of silicon
    14·2 answers
  • Julie wanted to know if adding calcium fertilizer to tomato plants will help prevent a disease of tomato plants called blossom-e
    12·1 answer
  • If one bulb broke in series circuit the other will light up ?
    6·1 answer
  • What is the net force acting on Hector and the toboggan?
    7·1 answer
  • A Carnot heat engine uses a hot reservoir consisting of a large amount of boiling water and a cold reservoir consisting of a lar
    12·1 answer
  • A 3.0 µF capacitor is initially connected to a 6.0 V battery. Once the capacitor is fully charged the battery is removed and a 4
    5·1 answer
  • What is the area of S-t graph​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!