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tamaranim1 [39]
3 years ago
11

there are 3 ways heat can be transferred: through solids, called ___ , through liquids and gases , called ____ , and through ele

ctromagnetic waves, called ___
Physics
1 answer:
avanturin [10]3 years ago
6 0

Explanation :

The transfer of heat continues untill the two bodies reach thermal equilibrium.

The heat can be transferred in via some processes like conduction, radiation and transfer of energy by changing of phase.

(1) Conduction : It is the transfer of heat via a solid. Heat can be transferred from one solid body to another.

(2) Convection : It is the transfer of heat from one place to another by the movement of fluids. Fluids include both liquids and gases.

(3) Radiation : It is the process of transfer of heat through electromagnetic waves. It is generated by the thermal motion of particles. All matter having a temperature greater than absolute zero emits radiation.

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This painting represents the milky way galaxy as it might appear from a distance. Identify the indicated features.
aksik [14]

The indicated features of how the painting represents the milky way galaxy include the following:

  • Spiral arm
  • Bulge
  • Disk

<h3>What is Milky way?</h3>

This is the galaxy which comprises of our solar system and has a milky appearance when it's viewed from the earth.

The painting represented it as a result of the spiral arm and other features which are listed above.

Read more about Milky way here brainly.com/question/13956361

5 0
2 years ago
The distance covered by a car at a time, t is given by x = 20t + 6t4, calculate
Anni [7]

Answer:

(i) v = 44 m/s

(ii) a = 72 m/s^2

Explanation:

You have the following equation for the potion of a car:

x=20t+6t^4

(i) The instantaneous velocity is the derivative of x in time:

\frac{dx}{dt}=20+(6)(4)t^3=20+24t^3

for t = 1 is:

v(t=1)=\frac{dx}{dt}=20+24(1)^3=44m/s

(ii) The instantaneous acceleration is the derivative of the velocity:

\frac{dv}{dt}=24(3)t^2=72t^2

for t = 1

a(t=1)=\frac{dv}{dt}=72(1)^2=72m/s^2

8 0
4 years ago
The IMA of a lever can be increased by decreasing the length between the applied effort and the pivot.
mina [271]
<span>We never really used the acronym "IMA", or ideal mechanical advantage, but I'm assuming you are trying to increase the leverage and ease the effort. If so, the answer is false. You want larger movement on the effort side, and smaller movement on the resistant side of the fulcrum.</span>
3 0
3 years ago
Read 2 more answers
A car undergoing uniform acceleration travels 100 meters from a standing start in a given period of time. If the time were incre
iogann1982 [59]

Answer:

d = 1600 m

Explanation:

If car start from rest and accelerates uniformly then the displacement of the car is given as

d = v_i t + \frac{1}{2}at^2

now we know

d = 0 + \frac{1}{2}at^2

now if the same car will accelerate from rest for four times of the previous time interval

then we will have

d = 0 + \frac{1}{2}a(4t)^2

d = 16(\frac{1}{2}at^2)

so the distance will be 16 times more

d = 1600 m

5 0
4 years ago
A mover uses a ramp to load a crate of nails onto a truck. The crate, which must be lifted 1.5 m from the street to the bed of t
jonny [76]

Answer:

<h2>3</h2>

Explanation:

Using the efficiency formula. Efficiency = MA/VR * 100%

MA = Mechanical Advantage

VR = velocity ratio = \frac{distance\ moved\ by\ effort}{distance\ moved\ by\ load}

Distance moved by effort = 4.5m

distance moved by load = 1.5m

VR = 4.5/1.5 =3

Assuming efficiency is 100% (since friction can be ignored)

100% = MA/3 * 100%

1 = MA/3

MA = 3*1

MA = 3

Mechanical Advantage of the ramp is 3

8 0
4 years ago
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