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Tresset [83]
3 years ago
7

To keep dry ice from forming a gas, what needs to happen

Physics
2 answers:
dexar [7]3 years ago
7 0
It need to melt because it will steam
Zarrin [17]3 years ago
7 0
You need to <span>Remove the heat energy - it will limit the movement of particle</span>
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A ball is thrown straight up. For which situation are both the instantaneous velocity and the acceleration zero?
leva [86]

The correct option is b i.e none is correct.

The instantaneous velocity would be zero at the top but the acceleration would not be zero at that point. This is because the acceleration is the rate of change of velocity. since, the velocity is not constant, hence the acceleration would not be zero. The correct answer would be option b: None is correct.

6 0
4 years ago
What happens when an experiment with new information or new technology produces results that support an existing theory?
Dimas [21]
A theory does <em>not </em>become a law! So, C is already out. 

In science, we always want to be updating and revising our information. We don't just say 'Oh, this supports my theory. Ah ha! It's proven! No more research is needed'. 

The best option here will most likely be B. =)
6 0
3 years ago
Read 2 more answers
Define position <br> i am not sure?
FrozenT [24]

A position is the point where something is located, as on a map, or the posture it's arranged in, such as an "upright position." Position has many meanings. ... As a verb it can mean lay, place, pose, or set.
5 0
3 years ago
A carpenter lifts a 10 kg piece of wood to his shoulder 1.5 m above the ground. What is the wood's potential energy on the carpe
Burka [1]

Answer:

The wood's potential energy on the carpenter's shoulder is 150 J.

Explanation:

Given;

mass of the wood, m = 10 kg

height through which the wood was raised, h = 1.5 m

acceleration due to gravity, g = 10 m/s²

The  wood's potential energy on the carpenter's shoulder is calculated as;

P.E = mgh

P.E = 10 x 10 x 1.5

P.E = 150 J

Therefore, the wood's potential energy on the carpenter's shoulder is 150 J.

8 0
3 years ago
Two open organ pipes, sounding together, produce a beat frequency of 8.0 Hz . The shorter one is 2.08 m long. How long is the ot
s344n2d4d5 [400]

Answer:

The length of the longer pipe is L = 2.30 m

Explanation:

Given that:

Two open organ pipes, sounding together, produce a beat frequency of 8.0 Hz . The shorter one is 2.08 m long.

How long is the other pipe?

From above;

The formula for the frequency of open ended pipes can be expressed as:

f = \dfrac{nv}{2L}

where n = 1 ( since half wavelength exist between those two pipes)

v = 343 m/s  and L = 2.08 m

Thus, the shorter pipe produces a frequency of :

f = \dfrac{1*343}{2*2.08}

f = \dfrac{343}{4.16}

f =82.45 \ Hz

Also; we know that the beat frequency was given as 8.0 Hz

Then,

The lower frequency of the longer pipe = ( 82.45 - 8.0 )Hz

The lower frequency of the longer pipe = 74.45 Hz

Finally;

From the above equation; make Length L the subject of the formula. Then,

The length of the longer pipe is L = \dfrac{nv}{2f}

The length of the longer pipe is L = \dfrac{1*343}{2*74.45}

The length of the longer pipe is L = \dfrac{343}{148.9}

The length of the longer pipe is L = 2.30 m

6 0
4 years ago
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