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Dominik [7]
3 years ago
5

This type of heat transfer occurs when heat moves from one molecule to another.

Physics
2 answers:
SpyIntel [72]3 years ago
6 0
I believe the answer would be conduction since its definition is the transfer of heat between substances that are in direct contact with each other. 

katrin [286]3 years ago
5 0
Conduction. is a transfer of energy by direct contact
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Can an object be in motion and not in motion at the same time? Explain.
kolezko [41]
It could rotate while not advancing distance
5 0
3 years ago
Select to show the energy of pendulum 1. Be sure that friction is set to none. Drag the pendulum to an angle (with respect to th
iragen [17]

Answer:

it have Potential energy

Explanation:

given data

Drag the pendulum to an angle 30∘

to find out

what form of energy does it have

solution

we know that pendulum start no kinetic energy when it release from any rest position then in starting it have potential energy only so that when pendulum is angle 30∘ at some height from ground so when it start it have potential energy same as in starting.

we know that the total energy is always conserve  

so it have potential energy

3 0
3 years ago
A block of mass 0.510 kg is pushed against a horizontal spring of negligible mass until the spring is compressed a distance x. T
maria [59]

Answer:

x=0.46m, speed=7.9m/s

Explanation:

Using the concept of conservation of energy:

1. kinetic energy of mass m and velocity v: E_k=\frac{1}{2}mv^2

2. gravitational potential energy of mass m, grav. acc. g and height h: E_g=mgh

3. potential energy in a spring with spring constant k and displacement from equilibrium x: E_s=\frac{1}{2}kx^2

Calculating x:

\frac{1}{2}mv_a^2=\frac{1}{2}kx^2

x=\sqrt{\frac{m}{k}}v_a

Calculating the speed:

\frac{1}{2}mv_a^2 +mgh_a=\frac{1}{2}mv_b^2+mgh_b + W_{friction}

h_a=0, h_b=2R,W_{friction}=F_{friction}\times distance=7\pi R

\frac{1}{2}mv_a^2=\frac{1}{2}mv_b^2+2mgR+7\pi R

Solving for v_b:

v_b=\sqrt{v_a^2-4gR-14\pi\frac{R}{m}}

7 0
3 years ago
Please help me! It says on the directions to compete the covalent bonds
Alona [7]
H2 or H:H 

hope this helps 
5 0
3 years ago
Before the invention of a wheel turning on an axle, ancient people moved heavy loads by placing rollers under them. (Modern peop
matrenka [14]

Answer:K.E.=36.277+1.0429=37.319 J

Explanation:

Velocity of Top most point of wheel is twice the Velocity of centre of mass of wheel

i.e V_{wheel}=2V_{cm}=0.319 m/s

Thus angular velocity is given by

\omega =\frac{V_{cm}}{R}

\omega =0.465 rad/s

Kinetic\ Energy=Rotational + transtational

K.E.=\frac{1}{2}m_{stone}V^2+2\left [ \frac{1}{2}m_{cyl}\left [ \frac{V}{2}\right ]^2\right ]+2\left [ \frac{1}{2}I\omega ^2\right ]

K.E.=\frac{V^2}{2}\left [ m_{stone}+\frac{m_{roller}}{2}\right ]+I\omega ^2

K.E.=\frac{0.319^2}{2}\left [ 672+\frac{82}{2}\right ]+\frac{82\times 0.343^2\times 0.465^2}{2}

K.E.=36.277+1.0429=37.319 J

3 0
3 years ago
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