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MAXImum [283]
4 years ago
6

What is the density of a 15g block of metal with a volume of 2cm3?

Physics
2 answers:
UkoKoshka [18]4 years ago
5 0

Answer: Density = 7.5 g / cm³

Explanation: Density is the ratio between mass and volume.

D= m / V

= 15 g / 2 cm³

= 7.5 g / cm³

JulsSmile [24]4 years ago
4 0

Answer:

density =mass/volume

Explanation:

density=15/2

density=7.5 g/cm³

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A certain toaster has a heating element made of Nichrome wire. When the toaster is first connected to a 120-V source (and the wi
Brut [27]

The power delivered to the toaster when it is at its operating temperature is 183.6 Watts

<h3>What is power?</h3>

Power can be described as the ability to do work, however, it can be found through the resistance and the current by using the formular, P=VI.

Voltage V1= 120V

initial current  I=  1.80 A

The power can be calculated using the formula as :

P=VI

where

I= current is 1.53

Voltage V1= 120V

Power= (120 * 1.53)

= 183.6 Watts

Therefore, power delivered to the toaster when it is at its operating temperature is 183.6 Watts

Learn more about Temperature on:

brainly.com/question/25677592

#SPJ4

4 0
1 year ago
What is conflict resolution?
enot [183]
Conflict resolution is conceptualized as the methods and processes involved in facilitating the peaceful ending of conflict and retribution.
7 0
3 years ago
A film of oil lies on wet pavement. The refractive index of the oil exceeds that of the water. The film has the minimum nonzero
Rainbow [258]

Answer:

Explanation:

For destructive interference , the condition is

2μt = nλ

2μt = n x 678

For constructive interference , the condition is

2μt = (2n+1)λ₁ /2

n x 678 = (2n+1)λ₁ /2

λ₁ = 1356 n / ( 2n + 1 )

λ₁ = 1356  / ( 2 + 1/n )

For longest wavelength , denominator should be smallest or n should be largest . The longest value of n is infinity so

λ₁ = 1356  /  2

= 678 nm .

7 0
3 years ago
During the process of _____, two rails or sides break apart and attract new nucleotide bases to form a new and complete strand.
netineya [11]

Answer: The correct answer for the blank is- Replication.

DNA replication is a biological process in which two identical replica of DNA are produced from single original DNA molecule through an enzyme called as DNA polymerase.

The two strands of double helical DNA are first separated ( with the help of helicase enzyme) so that the template DNA strands are exposed. In other words, the two strands are broken apart and attract new nucleotide bases to synthesize a new and complete strand of DNA.

This is done by DNA polymerase according to Watson and Crick base pairing ( A pairs to T, G pairs to C)

4 0
3 years ago
. An object has a position given by ~r(t) = [3.0 m − (4.00 m/s)t]ˆı + [6.0 m − (8.00 m/s2 )t 2 ]ˆ , where all quantities are in
kupik [55]

Answer:

(c) 16 m/s²

Explanation:

The position is r(t) = [3.0 \text{ m} - (4.00 \text{ m/s})t]\hat{i} + [6.0 \text{m} - (8.00 \text{ m/s}^2 )t^2 ]\hat{j}.

The velocity is the first time-derivative of <em>r(t).</em>

<em />v(t) = \dfrac{d}{dt}r(t) = -4.00\,\hat{i} -16t\,\hat{j}<em />

The acceleration is the first time-derivative of the velocity.

a(t) = \dfrac{d}{dt} v(t) = -16\hat{j}

Since <em>a(t)</em> does not have the variable <em>t</em>, it is constant. Hence, at any time,

a = -16\hat{j}

Its magnitude is 16 m/s².

4 0
3 years ago
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