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tresset_1 [31]
3 years ago
11

A group of letters used at the start of a word to change its meaning?

Physics
1 answer:
Diano4ka-milaya [45]3 years ago
6 0

Answer:

prefix

Explanation:

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Describe what happens to the particles of a liquid, in terms of movement and kinetic energy, as it is cooled to its freezing poi
nataly862011 [7]
As a system is cooled to its freezing point, the kinetic energy of the particles in the system will lower so the movement are much slower. Cooling means taking out heat from the system. This process is a physical change because it is only the phase of the system is changed and it is still the substance after the process.
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3 years ago
Read each scenario and then answer the question scenario a 120 J of work is done in 6 seconds Scenario b 160 J of work is done i
Zielflug [23.3K]

Answer:

all scenarios are using the same power

Explanation:

we know that power is defined as P(Watts)=W(Joules)/t(seconds).

When applying this formula to each of the scenarios we find:

\frac{120J}{6s}=\frac{160J}{8s}=\frac{200J}{10s}= 20W

Done

7 0
3 years ago
How are hot spots used to track plate motion
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When plates move they sometimes open small cracks that release heat from under earths plate, coming from the mantle or even the core at times, this heat allows scientists to determine where the plates are moving from and where they are moving to.
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3 years ago
Read 2 more answers
A circular conical reservoir has depth 20 feet and radius of the top 10 feet. water is leaking out so that the surface is fallin
levacccp [35]

As per given condition we know that vertex angle of the cone is given as

tan\theta = \frac{R}{H}

so here we can say that vertex angle will remain constant

so here

\frac{r}{y} = \frac{R}{H}

\frac{r}{8} = \frac{10}{20}

r = 4 feet

now for the volume we can say

V = \frac{1}{3}\pi r^2 y

also we can say

r = \frac{y}{2}

so here we will have

V = \frac{1}{3}\pi (\frac{y}{2})^2y = \frac{1}{12}\pi y^3

now for volume flow rate

Q = \frac{dV}{dt} = \frac{3}{12}\pi y^2\frac{dy}{dt}

Q = \frac{1}{4}\pi y^2 v_y

now plug in all data

Q = \frac{1}{4} \pi (8)^2 (12) ft^3/h

Q = 603.2 ft^3/h

4 0
3 years ago
When rocks are put under stress, they may fold, causing ________ to form.
disa [49]
Faults are cracks on the ground that is caused by the movement of the plate tectonics.  They usually cause rocks to break. 

Anitclines and synclines form when rocks are also put under stress, but they fold, not necessarily break apart. They create sharp folds. 

Island arcs are formed through volcanic events and not rocks. 

Mid ocean ridges are formed when oceanic plates move apart.  

Looking at their differences, the answer to your question is B. 
3 0
3 years ago
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