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RSB [31]
1 year ago
5

Instructions:Drag the tiles to the correct boxes to complete the pairs. Match each term with its definition. Tiles conductor rad

iation insulator convection conduction Pairs heat transfer involving direct contact of particles arrowBoth heat transfer in fluids arrowBoth heat transfer that doesn’t need a medium arrowBoth substance that doesn’t allow heat through arrowBoth substance that allows heat through arrowBoth
Physics
2 answers:
Vladimir [108]1 year ago
5 0

Explanation:

1. The conductor is the substance that allows the transfer of heat.

2. In the case of radiation, the transfer of heat happens without any medium.

3. The insulators do not allow the transfer of heat.

4. Convection - This process occurs in the case of fluids. The rate of convection depends on the temperature of the fluid and the temperature of the surface.

5. Conduction - It is the process of the transfer of heat when there is a collision between the existing particles.

UNO [17]1 year ago
4 0

<span>High SchoolPhysics5+3 pts</span><span>Instructions:Drag the tiles to the correct boxes to complete the pairs. Match each term with its definition. Tiles conductor radiation insulator convection conduction Pairs heat transfer involving direct contact of particles arrowBoth heat transfer in fluids arrowBoth heat transfer that doesn’t need a medium arrowBoth substance that doesn’t allow heat through arrowBoth substance that allows heat through arrowBoth

These are the answers:

</span>Conductor - <span>substance that allows heat through 
</span>Radiation - <span> heat transfer that doesn’t need a medium
</span>Insulator -  <span>substance that doesn’t allow heat through 
</span>Convection - <span>heat transfer in fluids
Conduction - </span>heat transfer involving direct contact of particles 
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a plane travels 204 km, northeast in 15.0 minutes. It also increases elevation by 1.6 km, upward in the same amount of time. Wha
mina [271]

Answer:

230 m/s northeast, 1.8 m/s up

Explanation:

204 kilometres = 204000 metres

15.0 minutes = 900 seconds

Velocity = Distance / Time

= 204000 / 900

= 230 m/s northeast (to 2 sf.)

1.6km = 1600 metres

Velocity = 1600 / 900

= 1.8 m/s up (to 2 sf.)

7 0
1 year ago
An astronaut takes what he measures to be a 10-min nap in a space station orbiting Earth at 8000 m/s. A signal is sent from the
svet-max [94.6K]

Answer:

longer than

Explanation:

given,

time of nap = 10 min

speed of orbiting earth = 8000 m/s

c is the speed of light

using the equation of time dilation

t' = \dfrac{t}{\sqrt{1-\dfrac{v^2}{c^2}}}

now inserting all the values

t' = \dfrac{10}{\sqrt{1-\dfrac{8000^2}{3\times 10^8)^2}}}

t' = \dfrac{10}{0.9999}

t' = 10.001 s

on solving the above equation we will get a value greater than 10minutes.

hence, On earth time of nap measured will be longer than 10 min

3 0
2 years ago
13) Can two nonzero perpendicular vectors be added together so their sum is zero? Explain.
Neporo4naja [7]

In order for two vectors to add to zero, they must have the same magnitude and point in opposite directions.

Two perpendicular vectors, by definition, make a right angle with each other whereas two vectors pointing in opposite directions form a straight line.

Because of this, two perpendicular vectors with nonzero magnitudes will never add to zero.

3 0
1 year ago
Read 2 more answers
A rectangular loop of wire with length a=2.2 cm, width b=0.80 cm,and resistance R=0.40m ohms is placed near an infinitely long w
ser-zykov [4K]

Answer:

magnetic flux ΦB = 0.450324 ×10^{-7}  weber

current I = 1.02484 10^{-8}  A

Explanation:

Given data

length a = 2.2 cm = 0.022 m

width b = 0.80 cm = 0.008 m

Resistance R = 0.40 ohms

current I = 4.7 A

speed v = 3.2 mm/s = 0.0032 m/s

distance r = 1.5 b = 1.5 (0.008) = 0.012

to find out

magnitude of magnetic flux and the current induced

solution

we will find magnitude of magnetic flux thorough this formula that is

ΦB = ( μ I(a) /2 π ) ln [(r + b/2 ) /( r -b/2)]

here μ is 4π ×10^{-7} put all value

ΦB = (4π ×10^{-7}  4.7 (0.022) /2 π ) ln [(0.012+ 0.008/2 ) /( 0.012 -0.008/2)]

ΦB = 0.450324 ×10^{-7}  weber

and

current induced is

current =  ε / R

current = μ I(a) bv / 2πR [(r² ) - (b/2 )² ]

put all value

current = μ I(a) bv / 2πR [(r² ) - (b/2 )² ]

current = 4π ×10^{-7} (4.7) (0.022) (0.008) (0.0032) /  2π(0.40) [(0.012² ) - (0.008/2 )² ]

current = 1.02484 10^{-8}  A

5 0
2 years ago
A 2600-m-high mountain is located on the equator. how much faster does a climber on top of the mountain move than a surfer at a
puteri [66]

The climber move 0.19 m/s  faster than surfer on the nearby beach.

Since both the person are on the earth, and moves with the constant angular velocity of earth, however there linear velocity is different.

Number of seconds in a day, t=24*60*60=86400 sec

The linear speed on the beach is calculated as

V1=\frac{2πr}{t}

Here, t is the time

Plugging the values in the above equation

V1=\frac{2π*6.4*10^6}{86400}=465.421 m/s

Velocity on the mountain is calculated as

V2=\frac{2π(r+h)}{t}

Plugging the values in the above equation

V2=\frac{2π(6.4*10^6+2600}{86400}=465.61 m/s

Therefore person on the mountain moves faster than the person on the beach by 465.61-465.421=0.19 m/s

5 0
1 year ago
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