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
puteri [66]
3 years ago
11

Define thermal conductivity.

Physics
1 answer:
ladessa [460]3 years ago
4 0

Answer:

A measure of the ability of a material to transfer heat.

Explanation:

Please mark me as brainliest please

You might be interested in
A body of mass 25kg, moving at 3 ms per second on a rough horizontal floor brought to rest after sliding through a distance of 2
erastova [34]
You have to solve this by using the equations of motion:
u=3
v=0
s=2.5
a=?
v^2=u^2+2as
0=9+5s
Giving a=-1.8m/s^2

Then using the equation:
F=ma
F is the frictional force as there is no other force acting and its negative as its in the opposite direction to the direction of motion.

-F=25(-1.8)
F=45N

Then use the formula:
F=uR
Where u is the coefficient of friction, R is the normal force and F is the frictional force.

45=u(25g)
45=u(25*10)

Therefore, the coefficient of friction is 0.18

Hope that helps




5 0
3 years ago
A baseball rolls off a 1.20m high desk and strikes the floor 0.50m away from the base of the desk . How fast was it rolling?
noname [10]

The initial velocity of the ball is 1.01 m/s

Explanation:

The motion of the ball rolling off the desk is a projectile motion, which consists of two independent motions:

- A uniform horizontal motion with constant horizontal velocity

- A vertical accelerated motion with constant acceleration (g=9.8 m/s^2, acceleration due to gravity)

We start by analyzing the vertical motion: we can find the time of flight of the ball by using the following suvat equation

s=ut+\frac{1}{2}gt^2

where

s = 1.20 m is the vertical displacement (the height of the desk)

u = 0 is the initial vertical velocity

g=9.8 m/s^2

t is the time of flight

Solving for t,

t=\sqrt{\frac{2s}{g}}=\sqrt{\frac{2(1.20)}{9.8}}=0.495 s

Now we analyze the horizontal motion. We know that the ball covers a horizontal distance of

d = 0.50 m

in a time

t = 0.495 s

Therefore, since the horizontal velocity is constant, we can calculate it as

v_x = \frac{d}{t}=\frac{0.50}{0.495}=1.01 m/s

So, the ball rolls off the table at 1.01 m/s.

Learn more about projectile motion:

brainly.com/question/8751410

#LearnwithBrainly

4 0
3 years ago
Sound waves are mechanical waves in which the particles in the medium vibrate in a direction parallel to the direction of energy
ch4aika [34]

C longitudnal waves

4 0
3 years ago
Read 2 more answers
Identify the region in the image where lighter elements, such as hydrogen or helium, are more likely to be found in a liquid or
Annette [7]

Lower in an arrangement

3 0
3 years ago
Read 2 more answers
Which statement best describes the effect of the magnet on the block of
barxatty [35]

The magnet (south pole of the magnet) has magnetized the right side of the block.

<h3>Direction of electric field in the magnetic material</h3>

The direction of electric field of the atom of the magnetic material is unpolarized.

From the diagram in the image, the right hand side of the magnetic material is being attracted to south pole of the magnet.

Thus, we can conclude that, the magnet has magnetized the right side of the block.

Learn more about magnetic material here: brainly.com/question/22074447

#SPJ1

7 0
2 years ago
Other questions:
  • A proposed space elevator would consist of a cable stretching from the earth's surface to a satellite, orbiting far in space, th
    6·1 answer
  • When a container decreases in size, what will happen to an amount of gas in the container??
    5·1 answer
  • How will a wave change as it moves from a layer of higher velocity into a lower layer of lower velocity?
    6·1 answer
  • Ionic solutes are considered strong electrolytes. What does this mean for the conductivity of the solution?
    5·2 answers
  • Real images can be upright or inverted.
    6·1 answer
  • Which two statements about an electric motor are true?
    8·2 answers
  • A small ball is attached to one end of a spring that has an unstrained length of 0.175 m. The spring is held by the other end, a
    5·1 answer
  • What does digital media allow you to do?
    15·1 answer
  • A 1-kg collar (located at point (2,2) from the origin) is pulled along a vertical, frictionless bar with a force of 10 N applied
    6·1 answer
  • Formula:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!