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3 years ago

8

Daniel is holding an extremely hot cup of coffee in his hand he tells his friend that thermal energy is flowing from his hands t

o the cup is Daniel right or wrong why or why not

1 answer:

cestrela7 [59]3 years ago

4 0

Answer:

Daniel is wrong.

Explanation:

Daniel needs to reverse the order. Thermal energy flows from the cup to his hand.

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Which of the following is a list of

KonstantinChe [14]

Answer:

c. metallic, sub metallic, or nonmetallic

4 0

3 years ago

3. What distance will a car, traveling 65 km/hr, cover in 3.0 hrs? (195 km)

qwelly [4]

Answer:

$\boxed{\sf Distance \ travelled \ by \ car = 195 \ km}$

Given:

Speed = 65 km/hr

Time = 3.0 hrs

To Find:

Distance

Explanation:

Distance = Speed × Time

= 65 × 3

= 195 km

7 0

4 years ago

consider the three vectors, A=3i+4j, B=2i-2j+4k, and C=-i+5j-3k. Show that the sum of the three vectors can alternatively be com

REY [17]

Answer:

A+B+C=7j+k

Explanation:

A=3i+4j

B=2i-2j+4k

C=i+5j-3k

A=3i+4j

+

B=<u>2</u><u>i</u><u>-</u><u>2</u><u>j</u><u>+</u><u>4</u><u>k</u>

i+2j+4k

A+B=i+2j+4k

+

C=<u>-i+</u><u>5</u><u>j</u><u>-</u><u>3</u><u>k</u>

7j+k

A+B+C=7j+k

4 0

2 years ago

How much water remains unfrozen after 62.2 kJ is transferred as heat from 364 g of liquid water initially at its freezing point?

Amanda [17]

Answer:

177.213 grams

Explanation:

Given:

Total amount of water = 364 grams

Latent heat of fusion = 333 kJ/kg

Heat transferred = 62.2 kJ

The amount of water frozen = 62.2/333 = 0.186786 kg = 186.786 grams

Hence, the amount of water remained unfrozen = Total water - Amount of water frozen

the amount of water remained unfrozen = 364 grams - 186.786 grams = 177.213 grams

6 0

4 years ago

Please answer this question

steposvetlana [31]

Hope you understand

Have a nice day

5 0

2 years ago