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Andrei [34K]
3 years ago
14

Help me on question 4 pls I’m giving out brainlest!!

Physics
1 answer:
Dafna11 [192]3 years ago
7 0
You can not find the density of the box 1 only including the mass. You need the volume as well. Density is mass divided by volume.
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I need help on 4 and 5 please
Ivan

Answer:

c

Explanation:

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The magma in the wake the core
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If a person looking at a poster sees green instead of yellow and doesn't see red at all, this person most likely has color blind
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Consider two parallel plate capacitors. The plates on Capacitor B have half the area as the plates on Capacitor A, and the plate
vichka [17]

Answer:

CB = 4.45 x 10⁻⁹ F = 4.45 nF

Explanation:

The capacitance of a parallel plate capacitor is given by the following formula:

C = ε₀A/d

where,

C = Capacitance

ε₀ = Permeability of free space

A = Area of plates

d = Distance between plates

FOR CAPACITOR A:

C = CA = 17.8 nF = 17.8 x 10⁻⁹ F

A = A₁

d = d₁

Therefore,

CA = ε₀A₁/d₁ = 17.8 x 10⁻⁹ F   ----------------- equation 1

FOR CAPACITOR B:

C = CB = ?

A = A₁/2

d = 2 d₁

Therefore,

CB = ε₀(A₁/2)/2d₁

CB = (1/4)(ε₀A₁/d₁)

using equation 1:

CB = (1/4)(17.8 X 10⁻⁹ F)

<u>CB = 4.45 x 10⁻⁹ F = 4.45 nF</u>

5 0
3 years ago
In proof testing of circuit boards, the probability that any particular diode will fail is 0.01. Suppose a circuit board contain
Sergio039 [100]

Answer: 2 diodes

Explanation:

Given : In proof testing of circuit boards, the probability that any particular diode will fail is 0.01.

The number of diodes contained by circuit board = 200

Then , the expected number of diodes to fail is given by :-

0.01\times200=2

Therefore, there are 2 diodes that we will expect to fail.

7 0
3 years ago
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