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zvonat [6]
2 years ago
13

A 53 g ice cube at −30◦C is dropped into a container of water at 0◦C. How much water freezes onto the ice? The specific heat of

ice is 0.5 cal/g · ◦ C and its heat of fusion of is 80 cal/g. Answer in units of g.
Physics
1 answer:
vladimir2022 [97]2 years ago
4 0

For A 53 g ice cube at −30◦C is dropped into a container of water at 0◦C, the amount of water that freezes onto the ice?  is mathematically given as

x = 9.93 g

<h3>What is the amount of water that freezes onto the ice?</h3>

Where

Energy received = energy given out

Generally, the amount of water is mathematically given as

(53)(0.5)(30) = (80)(x)

Therefore

x = (49)(0.5)(16)/(80)

x = 9.93 g

In conclusion, the mass of water

x = 9.93 g

Read more about  mass

brainly.com/question/15959704

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A 200 kg wood crate sits in the back of a truck. The coefficients of friction between the crate and the truck are ????s = 0.9 an
Xelga [282]

Answer:

Maximum acceleration of the truck is 5.25 m/s^2

Explanation:

To find the maximum acceleration the truck first we need to calculate friction between truck and wood. Because of wood is not moving, coefficient of c_{s} need to be used for it. Then the formula will be:

F_{s}=c_{s}*200*9.8*cos(20)\\F_{s}=0.9*200*9.8*0.94\\F_{s}=1657.62

1657.62 Newton is the friction.

So force against friction need to be at most 1657.62 N. Then equation will be:

F_{s}=F_{a}+F_{m}\\1657.62=200*9.8*sin(20)+200*a*cos(20)\\1657.62=670.36+187.94*a\\987.26=187.94*a\\a=5.25

Maximum acceleration of the truck need to be 5.25 m/s^2

4 0
3 years ago
I cant belive im doing this- i will mark brainliest if this gets answered- mostly correct.
Nataly [62]
I’m going to send a picture
7 0
3 years ago
Urgent!
Alla [95]

I think it's 0.6.                 ∞

Hopefully, it's correct... ∵-∵

7 0
3 years ago
How many fewer H+ ions are there in a solution at a pH = 11 than in a solution at a pH = 6?
slega [8]
See attachment file below.


Hope it helped!

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3 years ago
MORE POINTS, BRAINLIEST!!!
Rashid [163]

Answer: An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space.

Explanation: The parts of a circut bit can easily be found online, but heres a pic i found.

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2 years ago
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