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bogdanovich [222]
2 years ago
6

A person makes a cup of coffee by first placing a 200 W electric immersion heater in 0.32 kg

Physics
1 answer:
alexdok [17]2 years ago
8 0

Answer:

Answer is D. 8.04 x 10^4 J

Explanation:

1. D

2. A

3. D

4. B

5. C

6. B

7. D

8. C

9. B

10. D

All correct i promise you that

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Please help me I have been struggling
disa [49]
  1. High/low notes have high/low frequency, not high/low amplitude.
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4 0
3 years ago
On Earth, friction can be _____ but not removed.
Whitepunk [10]

Answer:

reduced

Explanation:

The use of bearing surfaces that are themselves sacrificial, such as low shear materials, of which lead/copper journal bearings are an example

4 0
2 years ago
The spin-drier of a washing machine revolving at 900.RPM slows down uniformly to 300.RPM while making 60. revolutions. Find the
jeyben [28]
<h2>Answer:</h2>

<u>Acceleration is </u><u>-10.57 rad/s²  </u>

<u>Time is </u><u>6 seconds</u>

<h2>Explanation:</h2><h3>a) </h3>

u=900rpm= 94.248 rad/s  

v =300rpm= 31.416 rad/s  

s=60 revolutions= 377 rad  

v²= u²+ 2as  

31.416² = 94.248²+ 2 * a * 377  

a = v²-u² / 2s

a= -10.57 rad/s²  

<h3>b) </h3>

Using 1st equation of motion

v-u/a = t

Putting the values

t = (31.4 - 94.2)/-10.57

t = 6 seconds

3 0
2 years ago
Two pebbles are dropped into a pool of water as shown. If a new wave with a
Kazeer [188]

Answer:

Constructive interference

Explanation:

3 0
2 years ago
Read 2 more answers
A football player pushes against another player trying to block him from moving any farther down the field. Which term best desc
Juli2301 [7.4K]

Answer:

its a negative work, not a negative force

Explanation:

I took the quiz first i put negative force i got it wrong

then when i put negative work it was right

Hope it help:)♥︎ plz mark me as brainliest

8 0
3 years ago
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