3 years ago

ASAP PLEASE HELPPP

Physics

1 answer:

34kurt3 years ago

4 0

Answer: 3000k and centauri A

Explanation:

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A sophomore with nothing better to do adds heat to a mass 0.300 kg of ice at 0.0 âc until it is all melted.

kramer

Melting ice? Man, that's cold

8 0

3 years ago

To the nearest square foot, how many square feet are there in an area of 4.4 square meters?

vichka [17]

Answer:

4.4 square meters = 47 square foot

Explanation:

We have

1 meter = 3.28084 foot

1 square meter = 3.28084 x 3.28084 square foot = 10.76 square foot

4.4 square meters = 4.4 x 10.76 = 47.36 square foot = 47 square foot

4.4 square meters = 47 square foot

3 0

3 years ago

6. A 50 N block is raised 2 m. If the net work done on the block is 50 J, what is the applied force on the block?

geniusboy [140]

Answer:

F = 75[J]

Explanation:

We know that work is defined as the product of force by distance.

In this way we have two forces, the weight of the block down, and the force that bring about the block to rise.

$W = -(F_{weight*d})+(F_{upward}*d)$

where:

W = work = 50 [J]

d = distance = 2 [m]

Fweight = 50 [N]

Fupward [N]

Now replacing:

$50=-(50*2)+(F_{upward}*2)\\50+100=F_{upward}*2\\F_{upward}=150/2\\F_{upward}=75[J]$

5 0

3 years ago

Một người đi đều với vận tốc 1,5 m/s, muốn đi quãng đường dài 1,5 km thì người

andrezito [222]

T=s/v=>t=1500/1,5=1000s
1,5km=1500m

6 0

2 years ago

I need some help pls

Lina20 [59]

Answer:

And the bigger intensity

Explanation:

4 0

3 years ago