All categories

3 years ago

Ruth is 1.23m tall lee is 6 cm shorter than ruth. how tall is lee

Physics

1 answer:

charle [14.2K]3 years ago

7 0

Ok so 1.23m is 123cm, so now all you do is do 123-6=117

i hope this helped

please mark me as brainlest

You might be interested in

If the concentration of Ag+ is 0.0115 M, the concentration of H+ is 0.355 M, and the pressure of H2 is 1.00 atm, calculate the c

scoundrel [369]

Answer: The cell potential is 0.712 V

Explanation:

The substance having highest positive $E^o$ potential will always get reduced and will undergo reduction reaction. Here, silver will undergo reduction reaction will get reduced. Hydrogen will undergo oxidation reaction and will get oxidized

Half reactions for the given cell follows:

Oxidation half reaction: $H_2(1.00atm)\rightarrow 2H^{+}(0.355M)+2e^-;E^o_{H^{+}/H_2}=0.00V$

Reduction half reaction: $Ag^{+}(0.0115M)+e^-\rightarrow Ag(s);E^o_{Ag^{+}/Ag}=0.80V$ ( × 2 )

Net reaction: $H_2(1.00atm)+2Ag^{+}(0.0115M)\rightarrow 2H^{+}(0.355M)+2Ag(s)$

Oxidation reaction occurs at anode and reduction reaction occurs at cathode.

To calculate the $E^o_{cell}$ of the reaction, we use the equation:

$E^o_{cell}=E^o_{cathode}-E^o_{anode}$

Putting values in above equation, we get:

$E^o_{cell}=0.80-(0.00)=0.80V$

To calculate the EMF of the cell, we use the Nernst equation, which is:

$E_{cell}=E^o_{cell}-\frac{0.059}{n}\log \frac{[H^{+}]^2}{[Ag^{+}]^2}$

where,

$E_{cell}$ = electrode potential of the cell = ?V

$E^o_{cell}$ = standard electrode potential of the cell = +0.80 V

n = number of electrons exchanged = 2

$[Ag^{+}]=0.0115M$

$[H^{+}]=0.355M$

Putting values in above equation, we get:

$E_{cell}=0.80-\frac{0.059}{2}\times \log(\frac{(0.355)^2}{(0.0115)^2})\\\\E_{cell}=0.712V$

Hence, the cell potential is 0.712 V

4 0

3 years ago

17. If a good is a luxury, what type of response will it cause?

Pie

Money......... hehehehe

6 0

3 years ago

The rubber band contains .......potential energy as it is stretched.

kodGreya [7K]

Answer:

elastic potential energy

You input potential (stored) energy into the rubber band system when you stretched the rubber band back. Because it is an elastic system, this kind of potential energy is specifically called elastic potential energy.

Explanation:

4 0

2 years ago

Calculation using Ohm's Law: If a circuit has a voltage of 500 V and a resistance of 250 ohms, what is the current?

konstantin123 [22]

I = V / R

Current = (voltage) / (resistance)

Current = (500 V) / (250 ohms)

Current = (500/250) Amperes

Current = 2 Amperes

6 0

3 years ago

Read 2 more answers

A 2500-lb vehicle has a drag coefficient of 0.35 and a frontal area of 20 ft2. What is the minimum tractive effort required for

emmasim [6.3K]

Answer:

i put this in the calculator and my answer is 600. hope this helps

Explanation:

4 0

3 years ago