3 years ago

Which items below describes specific kinds of producers.

Physics

1 answer:

Katen [24]3 years ago

3 0

Answer:

grocery store owner

medical doctor

trial lawyer

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What is the specific heat (J/g⋅∘C) of a metal object whose temperature increases by 3.0∘C when 17.5 g of metal was heated with 3

lesya692 [45]

Answer:

0.733J/g°C

Explanation:

Using the formula

Q=mcΔθ

Q=38.5J, c=? , m=17.5g , Δθ=3°C

c= Q/(mΔθ)

$c=\frac{38.5}{17.5*3}$

c=0.733J/g°C

6 0

4 years ago

The wavelength of light beam B is twice the wavelength of light beam B. The energy of a photon in beam A is:

julia-pushkina [17]

Corrected question: The wavelength of light beam<u> </u><u>A</u> is twice the wavelength of light beam B. The energy of a photon in beam A is:

Answer:

Explanation:

Energy = hc/λ

λ(A) =2λ(B)...................equation 1

We will solve for the ratio of energy of A to energy of B.which is

$\frac{E_{A} }{E_{B} }$

=(hc/λA) ÷ (hc/λB)

referring to equation 1 we have

=(hc/2λB) ÷ (hc/λB)

=hc/2λB) × (λB/hc)

= λB/2λB

$\frac{E_{A} }{E_{B} }$ =1/2

${E_{A} = \frac{1}{2} E_{B}$

The energy of A is half of B

6 0

3 years ago

Letícia leaves the grocery store and walks 150.0 m to the parking lot. Then, she turns 90° to the right and walks an additional

Alexxx [7]

Answer:

165.529454

Explanation:

According to the Pythagorean Theorem for calculating the lengths of a right angle triangle's sides, a^2 + b+2 = c^2, where c is the longest side (and the side opposing the right angle). So in your case it would be 150*150 + 70*70 = 27400. And √ 27400 is your answer.

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3 years ago

45 joules were expended to move a box weighing 30 newtons. How many meters was it moved?

slava [35]

Answer:

1.5 meter is the answer

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3 years ago

What is newton's first low of motion?

sergey [27]

Newton's first law of motion is that an object in motion will tend to stay in motion unless an external force acts upon it.

8 0

3 years ago

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