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Katyanochek1 [597]
4 years ago
15

Hakeem has two objects that are different temperatures. The beginning temperature of object A is 10°C. The beginning temperature

of object B is 29°C. He places the two objects so that they are in contact with each other. Which diagram accurately shows the direction of heat flow in this scenario?
Physics
2 answers:
devlian [24]4 years ago
6 0
None of the diagrams you attached shows the scenario accurately,
or at all.

Heat flows from Object-B to Object-A, until both objects are at
the same temperature, somewhere between 10°C  and  29°C.
Tamiku [17]4 years ago
3 0

the one that b is in this direction <<<<<<<<

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Mademuasel [1]
Solve for Speed: 16+20=36 km in 11 hrs
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To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time.

<span>speed = distance/time</span>

4 0
3 years ago
A uniform solid disk of mass 5.00 kg and diameter 47.0 cm starts from rest and rolls without slipping down a 40.0 ∘ incline that
saveliy_v [14]

Answer:

The speed it reaches the bottom is

v=6.51m/s

Explanation:

Given: m=5.0kg, r=47cm\frac{1m}{100cm}=0.47m

Using the conservation of energy theorem

U_i=K_E+K_{ER}

m*g*h=\frac{1}{2}*m*v^2+\frac{1}{2}*I*w^2

v=r*w, I=\frac{1}{2}*m*r^2

m*g*h=\frac{1}{2}*m*(r*w)^2 +\frac{1}{2}*[\frac{1}{2} *m*r^2]*w^2

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g*h=\frac{3}{4}*r^2*w^2

Solve to w'

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w=\sqrt{\frac{4*9.8m/s^2*3.25m}{3*(0.235m)^2}}

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v=27.74rad/s*0.235m=6.51m/s

7 0
3 years ago
what happens to the water after it rains? a. precipitation b. runoff c. condensation user: what do organisms from the ocean use
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4 0
3 years ago
What is the impulse of a 3 kg object that starts from rest and moves to 20 m/s?
IrinaK [193]

Answer:

The impulse on the object is 60Ns.

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F = m(\frac{v_{2}  - v_{1} }{t})

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Therefore,

impulse = Ft = m(v_{2} - v_{1})

From the question, m = 3kg, v_{1} = 0m/s and v_{2} = 20m/s.

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8 0
3 years ago
During the time interval from 0.0 to 10.0 s, the position vector of a car on a road is given by x(t) = a + bt + ct2, with a = 17
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The car’s velocity as a function of time is b + 2ct and the car’s average velocity during this interval is 0.9 m/s.

<h3>Average velocity of the car</h3>

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Learn more about velocity here: brainly.com/question/4931057

#SPJ1

3 0
2 years ago
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