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Juli2301 [7.4K]
3 years ago
6

Which shows the formula for converting from degrees Celsius to degrees Fahrenheit?

Physics
2 answers:
amm18123 years ago
4 0
I agree the first choice
bearhunter [10]3 years ago
3 0
The first choice is the correct formula.
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A boat of mass 250 kg is coasting, with its engine in neutral, through the water at speed 1.00 m/s when it starts to rain with i
bija089 [108]

Answer:

v_o\approx0.7059\ m.s^{-1}

Explanation:

Given:

mass of the boat, m=120\ kg

uniform speed of the boat, v=1\ m.s^{-1}

rate of accumulation of water mass in the boat, \dot m=100\ kg.hr^{-1}

time of observation, t=0.5\ hr

The mass of the boat after the observed time:

m_o=m+\dot m\times t

m_o=120+100\times 0.5

m_o=170\ kg

<u>Now using the conservation of momentum:</u>

m.v=m_o.v_o

120\times 1=170\times v_o

v_o\approx0.7059\ m.s^{-1}

4 0
3 years ago
An elastic band is hung on a hook and a mass is hung on the lower end of the band. When the mass is pulled downward and then rel
pshichka [43]

Answer:

v(t) = s′(t) = −9sin(t)+9cos(t)

a(t) = v′(t) = −9cos(t) −9sin(t)

Explanation:

Given that

s = 9 cos(t) + 9 sin(t), t ≥ 0

Then acceleration and velocity is

v(t) = s′(t) = −9sin(t)+9cos(t)

a(t) = v′(t) = −9cos(t) −9sin(t)

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3 years ago
Which list places different units of matter in the correct sequence from smaller to largest
Alex Ar [27]

Answer:

D. Protons, atoms, rock particles, bricks, buildings

Explanation:

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3 years ago
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Explain why a valve would last longer in the pulmonary position than in the aortic position
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Answer:The pulmonary valve is usually under less stress because the right pumping chamber does not need to generate as much force to push blood to the lungs. Therefore, a replacement valve can be more likely to succeed in the pulmonary position because demand on this valve is less.

Explanation:

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3 years ago
On a windless day, two identical balls P and Q are dropped from the top and the middle of a tower at exactly the same time as sh
Kruka [31]

Answer: time is the same

Explanation: the distance(H) is the same in each case .

we drop the balls , no drag force using basic kimnematics

y =gt*t/2  , yo=0 , vo=0 , y=H  , so : t= sqrt(2H/g)

comment: if distance H starts to grow....we could begin to note a difference  because of gravity g is smaller as we go up

3 0
3 years ago
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