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3 years ago

15

Explain why liquid particles at a high pressure would need more energy to change to a gas than liquid particles at a low pressur

e.

1 answer:

jenyasd209 [6]3 years ago

8 0

Jsjsjjewiqoowodofofocpcco Ossis

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How does the energy of the marble remain the same at all points on the ramp

Elenna [48]

Answer:

It depends on the potential energy it has ontop of the ramp. The marble has the same potential energy was the kinetic energy without changing the ramp incline or moving it. What kinetic energy shows is what potential energy made it to be, so we look at how the ramp is placed. If the ramp is a steep incline the kinetic energy will be fast. It depends on the weight of the marble too. If the marble is heavy the potential energy will slowly tansition to kinetic energy while a light marble will transition to kinetic energy fast. But marbles are light so there we have it. It basically goes from potential energy to kinetic energy to thermal energy to potential energy. Make me brainliest pls :)

Explanation:

7 0

3 years ago

Alcohol consumption slows people's reaction times.In a controlled government test,it takes a certain driver 0.320 s to hit the b

svetoff [14.1K]

Answer:

When the person is drunk the car travels 20.1 meters more than when the person is sober. The distance traveled by car is:

Person drunk: 28.1 m

Person sober: 8 m

Explanation:

The distance traveled can be found using the following equation:

$v = \frac{x}{t} \rightarrow x = v*t$

Where:

v: is the speed = 90 km/h

t: is the time

When the person is sober, the time that takes to hit the brakes is 0.320 s, so we have:

$x = v*t = 90 \frac{km}{h}*\frac{1 h}{3200 s}*0.320 s = 8 \cdot 10^{-3} km = 8 m$

And when the person is drunk, the time is 1.00 s, hence the distance is:

$x = v*t = 90 \frac{km}{h}*\frac{1 h}{3200 s}*1 s = 0.0281 km = 28.1 m$

The distance traveled by the car when the person is drunk compared when the person is sober is:

$d = 28.1 m - 8 m = 20.1 m$

Therefore, when the person is drunk the car travels 20.1 meters more than when the person is sober.

I hope it helps you!

6 0

3 years ago

a sports car can move 100 m in the first 4.4s of canstant accerationacceleration. what is the cars acceleration

Thepotemich [5.8K]

Hey 440 is your answer now pls thank me

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3 years ago

A monoenergetic beam of electrons is incident on a single slit of width 0.500 nm. A diffraction pattern is formed on a screen 25

Dmitry_Shevchenko [17]

Answer:

KE=1.366×10⁻¹⁶J or

KE=854ev

Explanation:

single slit diffraction pattern occur where sinФ=mλ/a for m=±1,±2,±3,.......

Here λ is wavelength

The spacing between successive minima is then

Δy= $y_{m+1}-y_{m}$

Δy=λ(L/a)

as given Δy=2.10cm, L=25cm and a=0.500nm

so for λ

λ=Δy(a/L)

$=(2.10*10^{-2}m )(\frac{(0.500*10^{-9}m)}{25*10^{-2}m} )$

λ=4.2×10⁻¹¹m

The momentum of one of these electrons is then

p=h/λ

$p=\frac{6.63*10^{-34} }{4.2*10^{-11}}\\ p=1.578*10^{-23}kgm/s$

Assuming the electron is non-relativistic, its kinetic energy is

$KE=p^{2}/2m_{e}\\ KE=\frac{(1.578*10^{-23} )^{2} }{2(9.11*10^{-31})}\\ KE=1.366*10^{-16}J$

Convert joules into electronvolt we get

KE=854ev

6 0

3 years ago

We see different phases of the Moon on Earth. How are the phases of the Moon proof of

Leni [432]

Answer:

The Moon itself does not generate light

Explanation:

The Moon itself does not generate light; it is lit up by the Sun. As the Moon orbits the Earth, the portion of illuminated Moon that we see changes – giving rise to the phases of the Moon. Starting at the New Moon phase, the Moon appears to expand in illumination.

8 0

2 years ago