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ollegr [7]
3 years ago
8

Can someone pls help me with this. Need it for tomorrow

Physics
1 answer:
Oksi-84 [34.3K]3 years ago
3 0
1. condensation
2. freezing
3. gas particles
4. moth balls
5. leave liquid
6. reacting
7. state of matter
8. sublimation
______________________________

1. temperature
2. increasing heat
3. its temperature begins rising from -20 C
4. it stops rising and stays steady at 0 C; the ice is using the
added heat to change state, melt, and turn to liquid
5. between 0 C and 100 C
6. it stops rising and stays steady at 100 C; it's being absorbed
by the water, and the water is using it to change state, evaporate,
and turn to gas
7. the heat is making the molecules move around easier

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Use the following formula to answer the following statement. Round to the nearest tenth.
just olya [345]
I need help my self lol XD
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3 years ago
In anticipation of a long 10 upgrade, a bus driver accelerates at a constant rate of 5 ft/s2 while still on a level section of a
fgiga [73]

Answer:

S = 20903.4 ft

Explanation:

First we will determine the acceleration of the bus while it is moving upward

The equilibrium  equation would be

F - W sin\theta = ma'\\ma - W sin\theta = ma'\\m = \frac{W}{g} \\\frac{W}{g}*a - W sin\theta = \frac{W}{g} * a'\\\frac{a}{g} - sin\theta = \frac{a'}{g}\\\frac{x}{y} \frac{5}{32.2} - sin 10 = \frac{a'}{32.2} \\\a' = -0.59

Let the displacement be S_0

As per newton's third law of motion

v^2 -u^2 = 2as\\u = 80 \frac{mi}{h} =   117.33\frac{ft}{s}\\v = 50 \frac{mi}{h} =   73.33\frac{ft}{s}\\73.33 ^ 2 - 117.33^2 =  2 * (-0.59) * (S-S_0)\\\\S_0 = 0\\S = 20903.4

3 0
3 years ago
Q:
Shalnov [3]

Answer:

Explanation:

We will use the KE equation you wrote here and fill in what we are given:

36=\frac{1}{2}m(12)^2 and isolating the m:

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m = .50 kg

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3 years ago
As a train accelerates away from a station, it reaches a speed of 4.9 m/s in 5.1 s. If the train's acceleration remains constant
vodomira [7]
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acceleration = 4.9 m/s / 5.1 s = 0.96 m/s^2

To determine the velocity after 7.1 s, we multiply 7.1 s to the acceleration. 

speed or velocity = 0.96 x 7.1 = 6.52 m/s
3 0
4 years ago
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Assuming the same current is running through two separate coils, why is it easier to thrust a magnet into a wire coil with one l
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The magnetic field strength in a coil is directly proportional to the number of turns, or loops, in the coil.
Therefore, when there are four loops instead of one, the magnetic field strength has increased four times, making it harder to push the magnet in.
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