1) 29.8 C
At the beginning, the metal is at higher temperature (70.4 C) while the water is at lower temperature (23.6 C). When they are put in contact, the metal transfers heat to the water, until they reach thermal equilibrium: at thermal equilibrium the two objects (the metal and the water have same temperature). Therefore, since the temperature of the water at thermal equilibrium is 29.8 C, the final temperature of the metal must be the same (29.8 C).
2) 6.2 C
The temperature change of the water is given by the difference between its final temperature and its initial temperature:
where
Substituting into the formula,
And the positive sign means that the temperature of the water has increased.
3) -40.6 C
The temperature change of the metal is given by the difference between its final temperature and its initial temperature:
where
Substituting into the formula,
And the negative sign means the temperature of the metal has decreased.
Answer:
I think its might Be number B
Explanation:
tell me if im rong
Answer:
A) True B) False C) True
Explanation:
To understand this concept we need to plan the equations related to the movement in the X-axis and the Y-axis thus we can see the behavior of the particle under the different forces.
In the attached image we can check the equation related with the forces.
A) The sum of the forces is 0 in both axis, therefore there is no movement of the particle.
B) In the previous point, we figure out that there is no movement and therefore no acceleration effect.
C) If a body or particle is not accelerating it will be in equilibrium or traveling at a constant velocity.
answer:
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explanation:
only got 70 followers on the gram
Answer:
The horizontal component is 96.42 N
The vertical component is 114.91 N
Explanation:
A force 150 newtons is inclined at 50 degrees to the horizontal direction
We need to find its component in the horizontal and vertical directions
is the horizontal component
is the vertical component
Look to the attached figure:
The horizontal component is the product of F and cosine
the angle between F and the horizontal
The vertical component is the product of F and sine
the angle between F and the horizontal
→ = F cos(50)
→ = 150 cos(50)
→ = 96.42 N
→ = F sin(50)
→ = 150 sin(50)
→ = 114.91 N
<em>The horizontal component is 96.42 N</em>
<em>The vertical component is 114.91 N</em>