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
lara [203]
4 years ago
12

3 In a tempering process, glass plate, which is initially at a uniform temperature Ti , is cooled by suddenly reducing the tempe

rature of both surfaces to Ts. The plate is 20 mm thick, and the glass has a thermal diffusivity of 6 107 m2 /s.

Physics
1 answer:
aalyn [17]4 years ago
8 0

Answer:

t=63s

tempersture gradient -2.36 x 10⁴

Explanation:

You might be interested in
Use the information and diagram to answer the following question.
Mumz [18]

Answer:b

Explanation:

Because I don’t know

8 0
3 years ago
A hockey player is wearing ice skates and pushes against the wall propelling her backward on the ice. According to Newton's thir
Amiraneli [1.4K]

I do not know of the following in your class, but the wall is still and non-moving, while the hockey player is pushing off of it, as stated. So, this is not inertia, for a fact, because the wall is not moving towards the hockey player.

5 0
3 years ago
A car starts from rest at a stop light and reaches 20m/s in 3.5s. Determine the acceleration of the car
olga55 [171]

The car accelerated at around ~5.7 m/s

8 0
3 years ago
An object at rest does not _____ and an object in motion does not _____, unless an _____ force acts upon it
mel-nik [20]

Answer:

An object at rest does not move and an object in motion does not change its velocity, unless an external force acts upon it

Explanation:

This statement is also known as Newton's first law, or law of  inertia.

It states that the state of motion of an object can be changed only if there is an external force (different from zero) acting on it: therefore

- If an object is at rest, it will remain at rest if there is no force acting on it

- If an object is moving, it will continue moving at constant velocity if there is no force acting on it

This phenomenon can be also understood by looking at Newton's second law:

F = ma

where

F is the net force on an object

m is the mass

a is the acceleration

If the net force is zero, F = 0, the acceleration of the object is also zero, a = 0: therefore, the velocity of the object does not change, and it will continue moving at the same velocity (which can be zero, if the object was at rest).

5 0
3 years ago
1. Butterflies usually are identified by the colors and patterns on their wings. Butterflies have four wings. The two wings near
tia_tia [17]

Answer:

Can't answer without a picture

Explanation:

7 0
4 years ago
Other questions:
  • Lisa has three classes that each last 50 minutes qhat ia the total nuber of minutes of minutes of the three classe?
    7·2 answers
  • In t-ball, young players use a bat to hit a stationary ball off a stand. The 140 g ball has about the same mass as a baseball, b
    15·1 answer
  • How does geomagnetism help scientist understand the motion of earth’s plates?
    5·1 answer
  • When a beam of light, originally traveling in air, enters a piece of glass having an index of refraction of 3/2, its frequency__
    7·1 answer
  • The volume of a gas can be converted to moles by
    12·1 answer
  • Which of these is most likely to lead directly to a black market?
    5·2 answers
  • PLLEEEASE HELP!!! How does archimedes' principle explain how much fluid is displaced by an object?
    12·1 answer
  • Vector → A has a magnitude of 3.7 units, and vector → B has a magnitude of 11.5 units. If the value of → A ⋅ → B is 22.4 units s
    14·1 answer
  • The strength of a gravitational force between two objects depends on
    7·1 answer
  • What is the triboelectric effect?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!