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
nikdorinn [45]
3 years ago
10

Which of the following objects conducts heat the best?

Physics
1 answer:
Ivanshal [37]3 years ago
6 0
A metal spoon is the best conductor, but a hot air balloon would conduct more heat than a metal spoon.
You might be interested in
A candle is placed 30 cm in front of a convex mirror with a focal length of 20 cm, as shown in the diagram. What is the distance
lora16 [44]
I think the answer is 60 cm.
5 0
3 years ago
Read 2 more answers
Ch 27 HW Exercise 27.12 10 of 20 Constants A horizontal rectangular surface has dimensions 2.80 cm by 3.15 cm and is in a unifor
deff fn [24]

Answer:

Magnetic field, B = 0.88 T

Explanation:

It is given that,

The dimension of rectangular surface is 2.80 cm by 3.15 cm. The area of rectangular surface is, A=8.82\ cm^2=0.000882\ m^2

Angle between the uniform magnetic field and the horizontal, \theta=31

Magnetic flux, \phi=4\times 10^{-4}\ Wb

Let B is the magnitude of magnetic field in which the rectangular surface is placed. It is given by :

\phi=BA\ cos\theta

\theta is the angle between magnetic field and the area

Here, \theta=90-31=59^{\circ}

B=\dfrac{\phi}{A\ cos\theta}

B=\dfrac{4\times 10^{-4}}{0.000882\times cos(59)}

B = 0.88 T

So, the magnitude of magnetic field is 0.88 T. Hence, this is the required solution.

7 0
3 years ago
At a constant pressure, 10 L of a gas at 546 K is cooled to 273 K
lisabon 2012 [21]

Answer:

5 L

Explanation:

Ideal gas law:

PV = nRT

If P, n, and R are constant, then:

n₁R/P₁ = n₂R/P₂

Using ideal gas law, we can rewrite this as:

V₁/T₁ = V₂/T₂

This is known as Charles' law.

Plugging in values:

10 L / 546 K = V / 273 K

V = 5 L

8 0
3 years ago
A 77.0 kg firefighter climbs a flight of stairs 8.0 m high. how much work is required? 0 incorrect: your answer is incorrect. j
Alex73 [517]
<span>6160 joules

    to lift 1 newton 1 metre requires 1 joule
 there are 10 newtons in one kilo

    so 77(kg) x 8 (metres) x 10 (newtons/kilo) = 6160 joules</span>
5 0
3 years ago
Which state(s) of matter is/are made up of atoms and molecules that have a comparatively high amount of kinetic energy, which al
Rom4ik [11]

Answer:

A. gas only

Explanation:

In a gas, the molecules are in continuous, random, straight-line motion.

The molecules are independent of one another i.e The forces of attraction (cohesive forces) and repulsion between the molecules are small and negligible,As such they possess greater kinetic energy which allows them to break the force of attraction between them

In liquid, the molecules have a less random pattern of motion and they can only slide past one another.

In solid, the motion are restricted to a small place as the molecules are not free to move about but merely vibrate about their lattice points.

7 0
3 years ago
Other questions:
  • Help?? This is for my Physics class
    14·1 answer
  • A motorcycle accelerated from 10 metre per second to 30 metre per second in 6 seconds. How far did it travel in this time ?
    5·1 answer
  • What do scientitsts do to easily share mesurment data they can understand
    14·1 answer
  • What is a constellation as astronomers define it today? What does it mean when an astronomer says, “I saw a comet in Orion last
    11·1 answer
  • A box resting on a flat surface is pulled to the right with 20N of force and the left with 24N of force. In which direction does
    10·1 answer
  • The following nuclear reaction is balanced.<br><br><br><br> True<br> False
    8·2 answers
  • The turn on voltage for forward basing a PN junction diode is within the range of​
    7·1 answer
  • NEED HELP ASAP, ILL GIVE YOU BRAINLIEST IF CORRECT (30POINTS)
    5·1 answer
  • Helpppppppp pleaseeeee!!
    12·1 answer
  • Pls help 100 points plssssssss
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!