What must be true of the two highlighted triangles in the image? Check all that apply.
2 answers:
Answer:
hi your question lacks the required options and diagram here is the complete question and diagram.
What must be true of the two highlighted triangles in the image? Check all that apply. | 1. The speed of the planet is the same for both triangles. | 2. The time frame is the same for both triangles. | 3. The area is the same for both triangles. | 4. The gravitational force is the same for both triangles.
Answer : The time frame is the same for both triangles ( 2 )
The area is the same for both triangles ( 3 )
Explanation:
according to Kepler's second law of planetary motion which states that "That the line segment joining the planet and the sun sweeps equal areas during equal intervals of time"
according to Kepler's second law of planetary motion the highlighted triangles in the image the time frame and the area is the same for both of them and this is because they have line segments that joins the sun to the planet which is moving around the sun in a elliptical orbit. hence option 2 and option 3 is true for the highlighted triangles.
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Answer:
40.02 calories
Explanation:
V = 10 mL = 10g
we know t went <em>up</em> by 4°C, this is our ∆t as it is a change.
Formula that ties it together: Q = mc∆t
where,
Q = energy absorbed by water
m = mass of water
c = specific heat of water (constant)
∆t = temperature change
Q = (10 g) x (4.186 J/g•°C) x (4°C)
Q = 167.44 J
Joules to Calories:
167.44 J x 1 cal/4.184 J = 40.02 calories
(makes sense as in image it is close to the value).
