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Lelu [443]
2 years ago
14

Why do we use the halfway-mark as a point of comparison rather than at the point which all the disks are floating?

Physics
1 answer:
Llana [10]2 years ago
6 0

We use the halfway mark as a point of comparison rather than at the point at which all the disks are floating because If the experiment were to be repeated, we would require a set of reference points.

The net rates of photosynthesis can be compared at the point where half the initial number of disks are floating. The time it takes for half of the disks to float reduces as the net rate of photosynthesis rises, showing an inverse relationship between the value and the net rate.

As photosynthesis develops, oxygen is delivered into the leaf's interior, changing the buoyancy and raising the disks. The rate at which the disks increase is an indirect indicator of the net rate of photosynthesis because cellular respiration, which uses oxygen, is occurring concurrently.

To know more about floating disks refer to: brainly.com/question/6496355

#SPJ4

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An ideal gas is enclosed in a piston, and 1600 J of work is done on the gas. As this happens, the internal energy of the gas inc
Phantasy [73]

Answer:

- 1100 J heat flows out

Explanation:

dW = - 1600 J (as work is done on the gas)

dU = 500 J

dQ = ?

According to the first law of thermodynamics

dQ = dU + dW

dQ = 500 - 1600

dQ = - 1100 J

As heat is negative so it flows out.

3 0
3 years ago
HELP ME ANSWER THIS PLZ I WILL GIVE BRAINLIEST
disa [49]

Answer:

In mitosis, the products are identical to the parent cell, while in meiosis the products are different from the parent cell.

Explanation:

Mitosis replicates DNA at the beginning of the process, so it's always the same, but Meiosis uses a special process called crossing over which causes two chromosomes to swap information, which means that the DNA has changed.

5 0
3 years ago
An object initially at rest experiences an acceleration of 9.8 m/s2 how much time will it take it to achieve a velocity of 58 m/
Ber [7]

Answer:

The time required by object to achieve velocity 58 m/s is 5.918 second.

Given:

acceleration = 9.8 \frac{m}{s^{2} }

Initial velocity = 0 m/s

final velocity = 58 m/s

To find:

Time required by object = ?

Formula used:

According to first equation of motion is given by,

v = u + at

Where, v = final velocity

u = initial velocity = 0 (Given The particle is at rest initially)

a = acceleration

t = time

Solution:

According to first equation of motion is given by,

v = u + at

Where, v = final velocity

u = initial velocity = 0 (Given The particle is at rest initially)

a = acceleration

t = time

58 = 0 + 9.8 (t)

t = \frac{58}{9.8}

t = 5.918 s

The time required by object to achieve velocity 58 m/s is 5.918 second.



8 0
4 years ago
On land, coal is transported primarily by train. A typical large coal train may be about 1.5 km long and may consist of 120 cars
WINSTONCH [101]

Answer:

equivalent power = 6.60 × 10^{12} W

Explanation:

given data

coal train length = 1.5 km = 1500 m

contain = 120 cars

holding= 110 tonnes of coal each

train traveling speed = 100 km/h = 27.78 m/s

to find out

equivalent power in watts

solution

we take here energy produce by coal is 27 ×  10^{6} J/kg

and here total coal = 120 × 110  × 10³ kg

sop here energy produce by total coal is

energy produce by total coal = 27 ×  10^{6} × 120 × 110  × 10³  

and time required to cross that distance is

time = \frac{distance}{speed}    

time = \frac{1500}{27.78}  

time = 53.99 sec

so here equivalent power will be

equivalent power = \frac{energy}{time}  

equivalent power = \frac{27*10^6*120*110*10^3}{53.99}  

equivalent power = 6.60 × 10^{12} W

6 0
3 years ago
A generator connected to an RLC circuit has an rms voltage of 140 V and an rms current of 31 mA. Part A
vredina [299]

Answer:

53.06 ohm

Explanation:

We have given the rms voltage V =140 V

And the rms current i=31 mA

So the impedance Z=\frac{V}{i}=\frac{140}{3\times 10^{-3}}=46.666kohm

Resistance is given as R = 3 kohm

And capacitive reactance X_C=6.5kohm

We know that Z=\sqrt{R^2+(X_L-X_C)^2}

46.666=\sqrt{3^2+(X_L-6.5)^2}

Squaring both side 2177.1556=9+(X_L-6.5)^2

(X_L-6.5)^2=2168.155

(X_L-6.5)=46.5634

X_L=53.063ohm

8 0
3 years ago
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