2 years ago

Can someone explain and slove question 4

Physics

1 answer:

Sonbull [250]2 years ago

6 0

A. NaOH
B. PbNO3
C. FeSO4
D. P2O3
E. CSe2
F. HC2H3O2
G. HCIO
H. H2SO4

You might be interested in

The grocery store is 20 miles away

adoni [48]

Answer:

40mph

Explanation:

20miles .5 miles away if you go 20 mph you get there in a hour soo if you double to 40 mpg you get there in 0.5

5 0

2 years ago

Read 2 more answers

if the speed of sound through the air is rounder 80 meters per second what will be the change in temperature of the air

d1i1m1o1n [39]

hope it is if the speed in air is larger by 80m/s what is change in temperature.

Explanation:

hope this helps you

............

8 0

2 years ago

Please just give me an answer, thanks.

Colt1911 [192]

$\\ \rm\dashrightarrow P=VI\implies V=\dfrac{P}{I}$

$\\ \rm\dashrightarrow V=\dfrac{0.4\times 10^3}{33\times 10^{-3}}$

$\\ \rm\dashrightarrow V=0.012\times 10^{-6}$

$\\ \rm\dashrightarrow V=12mV$

$\\ \rm\dashrightarrow R=\rho \dfrac{\ell}{A}$

$\\ \rm\dashrightarrow \rho =\dfrac{RA}{\ell}$

$\\ \rm\dashrightarrow \rho=\dfrac{86.3(0.4\times 10^6)}{69}$

$\\ \rm\dashrightarrow \rho=0.5\times 10^{6}$

It should be silicon

Ohms law

$\\ \rm\dashrightarrow R=\dfrac{V}{I}$

$\\ \rm\dashrightarrow R=\dfrac{7(10^3)}{6(10^{-6})}$

$\\ \rm\dashrightarrow R=1.167\times 10^9\Omega$

7 0

1 year ago

How many photons with 10 ev are required to produce 20 joules of energy?

oee [108]

One electron Volt (eV) is equal to 1.6 x 10^-19 Joules. Therefore, 10 eV is equal to 1.6 x 10^-18 Joules. In order to produce 20 Joules of energy from 10 eV photons, we would require 20 x 1/(1.6 x 10^-18) = 1.25 x 10^19 particles. This demonstrates that in the world of particle physics, the Joule is a massive energy unit relative to the commonly used electron Volt.

6 0

3 years ago

The volume of a gas can be converted to moles by

BaLLatris [955]

B. Because I say so

6 0

2 years ago