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Mandarinka [93]
3 years ago
8

Which pieces of safety equipment should be worn if you are working with sodium hydroxide, a strong base, in a chemistry lab?

Physics
2 answers:
aleksley [76]3 years ago
8 0
The best and correct answer is B
slega [8]3 years ago
4 0
Answer should be B. goggles and apron.
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Many of the male characteristics come from which reproductive hormone?
motikmotik

Answer:

The answer is C. Testosterone.

Explanation:

Thats what make us a male.

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2 years ago
A circular loop of wire with radius 2.00 cm and resistance 0.600 Ω is in a region of a spatially uniform magnetic field B⃗ that
Anika [276]

Answer:

Incomplete questions

Let assume we are asked to find

Calculate the induced emf in the coil at any time, let say t=2

And induced current

Explanation:

Flux is given as

Φ=NAB

Where

N is number of turn, N=1

A=area=πr²

Since r=2cm=0.02

A=π(0.02)²=0.001257m²

B=magnetic field

B(t)=Bo•e−t/τ,

Where Bo=3T

τ=0.5s

B(t)=3e(−t/0.5)

B(t)=3exp(-2t)

Therefore

Φ=NAB

Φ=0.001257×3•exp(-2t)

Φ=0.00377exp(-2t)

Now,

Induce emf is given as

E= - dΦ/dt

E= - 0.00377×-2 exp(-2t)

E=0.00754exp(-2t)

At t=2

E=0.00754exp(-4)

E=0.000138V

E=0.138mV

b. Induce current

From ohms laws

V=iR

Given that R=0.6Ω

i=V/R

i=0.000138/0.6

i=0.00023A

i=0.23mA

5 0
3 years ago
What potential increase vac must an electron be accelerated through if the most energetic photon it can emit will scatter off of
nikitadnepr [17]
Referring to Compton scattering 
Δλ = h/m₀c (I- cos Ф)
λ' =λ = (0,0242×10⁻¹⁰) (1- cos 60°)
λ= λ' -(0.0242 × 10⁻¹⁰) (1- cos 60°)

7.19 ˣ 10⁻¹²m

The increased potential is given by 
Vₐc = hc/eλ = 6.625 × 10 ⁻³⁴ J,s) ( 3× 10⁸ m/s ( 1.6 ˣ 10 ⁻¹⁰C)
(7.19 ˣ 10⁻¹²m)

173kV.
7 0
3 years ago
What is the velocity of a wave with a frequency of 760 Hz and a wavelength of 0.45 m?
ad-work [718]
<span>342 m/s This should be correct, but please tell me if it is incorrect!</span>
3 0
3 years ago
Which of the bodies move,the sun⛅ or the Earth​
alekssr [168]

the Earth moves

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6 0
3 years ago
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