All categories

3 years ago

How many chirps will a snowy tree cricket give is 21 seconds at a temperature of 22 degree celcius

1 answer:

Studentka2010 [4]3 years ago

7 0

There is an established correlation between the number of chirps of a cricket and temperature. The function is
ln C = -6713.2 / T + 25.868

Where c is the number of chirps per min and T is the temperature in K
We are given
T = 22 C + 273 = 295K

Solving for C
ln C = -6713.2 / 295 + 25.868
C = 22.45 chirps/min

In 21 seconds, the number of chips is
22.45 chirps / min (1 min/60 s) (21 s) = 7.86 chirps <span />

You might be interested in

What are four minerals that are commonly taken from ores

Umnica [9.8K]

If it helps or doesn't I'm sorry, but if you even played the game Minecraft just remember it.

Gold, silver, coal, and iron come from ores.

5 0

3 years ago

The generator at a power plant produces AC at 20,000 V. A transformer steps this up to 355,000 V for transmission over power lin

Masja [62]

Answer:

Number of coil in the output is 39938

Explanation:

We have given a step up transformer

Input voltage of transformer, that is primary voltage $v_p=20000volt$

Output voltage, that is secondary voltage $v_s=355000volt$

Number of turns in primary $N_p=2250$

For transformer we know that $\frac{V_p}{V_s}=\frac{N_p}{N_s}$

$\frac{20000}{355000}=\frac{2250}{N_s}$

$N_s=39937.5$

As the number of turns can not be in fraction so number of turns in the output coil is 39938

7 0

3 years ago

What is the most abundant element in the universe?<br> A. helium<br> B. hydrogen<br> C. carbon

Naya [18.7K]

The answer is Carbon

3 0

3 years ago

Read 2 more answers

Addition of a lubricant such as oil to a surface will __ friction ?

Mashcka [7]

Answer:

decrease

Explanation:

Addition of a lubricant such as oil to a surface will decrease friction. This makes the surface more greasy or slippery. This is very much efficient in machines, for example.

5 0

2 years ago

A soccer ball with a mass of 0.45 kg is rolling with a momentum of 9 kg*m/s, what is it's velocity?

Lelu [443]

Answer: 20 m/s

Explanation:

P = mv

since we're trying to find the velocity, you change the formula to v = P/m

v = ?

P = 9 kgm/s

m = 0.45 kg

v = 9 kgm/s / 0.45kg = 20 m/s

3 0

2 years ago