1 year ago

Matter can undergo chemical reactions and nuclear reactions, which

Physics

1 answer:

asambeis [7]1 year ago

8 0

Answer:

Explanation:

they involve breaking and making chemical bonds

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pressure A vertical piston cylinder device contains a gas at an unknown pressure. If the outside pressure is 100 kPa, determine

ycow [4]

Answer:

Explanation:

When Cylinder is vertical Let gas pressure inside is $P_1$ and atmospheric Pressure be

$P_0=100 KPa$

Area of Piston $A=0.2 m^2$

mass of Piston $m=20 kg$

from FBD

$mg+P_0A=P_1A$

$P_1=P_0+\frac{mg}{A}$

$P_1=100+\frac{20\times 9.8}{0.2}$

$P_1=100+0.98$

$P_1=100.98 KPa$

(b)If cylinder is upside down

From FBD

$mg+P_2A=P_0A$

$P_2=-\frac{mg}{A}+P_0$

$P_2=100-\frac{20\times 9.8}{0.2}$

$P_2=100-0.98=99.02 KPa$

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3 years ago

A 40 kg-skier starts at the top of a 12-meter high slope. At the bottom, she is traveling 10 m/s. How much energy does she lose

julia-pushkina [17]

2704 j is my answer i did the math. good luck

8 0

3 years ago

Read 2 more answers

Superman ferma in 5,0 ∙10^(-3) s un treno inizialmente in corsa alla velocitá di 216km/h. Qual é l’accelerazione media del treno

kotykmax [81]

Answer:

$1.2*10^4 m/s^2$

Explanation:

The formula to find average acceleration is a=Δv/Δt.

Convert 216 km/hr to m/s

216 km/hr * 1000 m/km * 1 hr/60 mins * 1 min/60 secs = 60 m/s

So a= (60 m/s)/(5.0*10^-3) = 12000 m/s^2

Put that into scientific notation to get 1.2*10^4 m/s^2

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3 years ago

Which type of nuclear waste can be disposed of in a landfill?

marysya [2.9K]

Low-level nuclear waste can be disposed of in a landfill.

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3 years ago

Constants A capacitor is connected across an ac source that has voltage amplitude 59 0 V and frequency 77 0 Hz Part C What is th

Vladimir79 [104]

Answer:

$C = 1.77 \times 10^{-4} F$

Explanation:

As we know that in AC circuit we have

$V = i x_c$

here we have

V = 59 V

i = 5.05 A

so we will have

$x_c = \frac{59}{5.05}$

$x_c = 11.68 ohm$

also we know that

$x_c = \frac{1}{\omega C}$

here we will have

$11.68 = \frac{1}{(2\pi 77)C}$

$C = 1.77 \times 10^{-4} F$

7 0

2 years ago