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4 years ago

What is the mass, in grams, of the object being measured in the triple beam balance shown below?

Physics

2 answers:

Nikitich [7]4 years ago

5 0

Answer:

Reading will be

m = 25.5 g

Explanation:

As we know that here the scale is divided into three parts

total reading is the sum of reading due to each part

here from first scale the reading is given as

$m_1 = 20 g$

from second scale the reading will be

$m_2 = 0$

from third scale the reading will be

$m_3 = 5.5 g$

so total reading will be

$m = 20 + 0 + 5.5$

$m = 25.5 g$

Vikki [24]4 years ago

3 0

I believe the answer is B) 25.5 g

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faltersainse [42]

Answer:

They are a lot of religions and faiths across the globe. 

Explanation:

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4 years ago

If the magnitude of the magnetic field is 2.50 mT at a distance of 12.6 cm from a long straight current carrying wire, what is t

Aleksandr-060686 [28]

Answer:

The magnetic field at a distance of 19.8 cm from the wire is 1.591 mT

Explanation:

Given;

first magnetic field at first distance, B₁ = 2.50 mT

first distance, r₁ = 12.6 cm = 0.126 m

Second magnetic field at Second distance, B₂ = ?

Second distance, r₂ = ?

Magnetic field for a straight wire is given as;

$B = \frac{\mu I}{2 \pi r}$

Where:

μ is permeability

B is magnetic field

I is current flowing in the wire

r distance to the wire

$Let \ \frac{\mu I}{2\pi} \ be \ constant; = K\\\\B = \frac{K}{r} \\\\K = Br\\\\B_1r_1 = B_2r_2\\\\B_2 =\frac{B_1r_1}{r_2} \\\\B_2 = \frac{2.5*10^{-3} *0.126}{0.198} \\\\B_2 = 1.591 *10^{-3}\ T\\\\B_2 = 1.591 \ mT$

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7 0

3 years ago

In levelling, the following staff readings were observed involving an inverted staff, A = 2.915 and B = -2.028. What is the rise

salantis [7]

Answer:

The rise from A to B is 0.887

Solution:

As per the question:

The following reading of an inverted staff is given as:

A = 2.915

B = -2.028

Here, for inverted staff, the greater reading shows greater elevation and lesser reading shows lower elevation.

Thus

The rise from A to B is given as:

A - B = 2.915 - 2.028 = 0.887

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3 years ago

If a car goes down Lake at 30 miles per hour how far will it go in 0.25 hours?

kati45 [8]

Answer:

7.5 miles

Explanation:

0.25 hours=15minutes.

So you do

30 miles=60minutes

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Ans-7.5

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3 years ago

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3 years ago

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