2 years ago

I need help someone help me

Physics

1 answer:

GaryK [48]2 years ago

5 0

what do you need , i mean your help , let me see if i can help

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Large electric fields in cell membranes cause ions to move through the cell wall. The field strength in a typical membrane is 1.

serg [7]

Explanation:

The given data is as follows.

Electric field (E) = $1 \times 10^{7} N/C$

Charge (e) = $1.6 \times 10^{-19}$ C

Formula to calculate the magnitude of force is as follows.

F = qE

= $1.6 \times 10^{-19} \times 1 \times 10^{7} N/C$

= $1.6 \times 10^{-12} N$

Therefore, we can conclude that magnitude of the force on a calcium ion with charge +e is $1.6 \times 10^{-12} N$ .

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2 years ago

Fill in the blank. When using a wrench if you double the length of the wrench (effort arm), you have ______ the required force t

OlgaM077 [116]

Answer:

halved

Explanation:

the formula

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2 years ago

Heeeelllllllpppp I need this right now

dem82 [27]

Static friction

hope this helps

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2 years ago

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The metal with the highest melting temperature is tungsten which melts at around 3400 K. What is the wavelength of the peak of t

alekssr [168]

Explanation:

It is given that, the metal with the highest melting temperature is tungsten which melts at around 3400 K, T = 3400 K

We need to find the wavelength of the peak of the black body distribution for this temperature. It can be calculated using Wein's displacement law as :

$\lambda\times T=k$

k is the constant, $k=2.89\times 10^{-3}\ m.k$

$\lambda=\dfrac{k}{T}$

$\lambda=\dfrac{2.89\times 10^{-3}\ m.k}{3400\ k}$

$\lambda=8.5\times 10^{-7}\ m$

$\lambda=850\ nm$

The wavelength of infrared is from 700 nm to 1 mm. So, the lies in infrared region of the spectrum. Hence, this is the required solution.

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2 years ago

Small pockets of synovial fluid that reduce friction and act as a shock absorber where ligaments and tendons rub against other t

Aloiza [94]

Answer:

bursae.

Explanation:

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2 years ago