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Mkey [24]
1 year ago
7

7. If a graph is showing a positive slope, and the graph itself is a straight line, what must be the x and y axis if the straigh

t
line is showing a constant acceleration?
Physics
1 answer:
guajiro [1.7K]1 year ago
3 0

   An object has positive acceleration if it is accelerating and travelling in the right direction.

<h3>What does it signify if a position time graph has a straight line with a positive slope?</h3>
  • A straight line with a positive slope will appear on the Position vs. Time graph of an item travelling forward at a constant speed. It shows that the object's velocity is constant and that it is travelling ahead.
  • The y-axis of this sort of graph denotes position in relation to the starting point, while the x-axis denotes time. An object's distance from its beginning position at any given moment since it began moving is displayed on a position-time graph.
  • In a distance-time graph, the object's speed is equal to the slope or gradient of the line. The line becomes steeper as the thing goes more quickly (and the greater the gradient).
  • The starting point of the item is indicated by the y-intercept. An object's y-intercept is zero if it begins at the measuring instrument. Its y-intercept is 3 meters if it begins at a distance of 3 meters. When two items are in the same position, you may tell by where two lines intersect.

To Learn more About Positive acceleration, Refer:

brainly.com/question/460763

#SPJ13

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An insulated piston–cylinder device contains 5 l of saturated liquid water at a constant pressure of 150 kpa. an electric resist
Semmy [17]
At the initial state: v1 = vf = 0.001053 m 3 /kg, h1 = hf = 467.11 kJ/kg, and s1 = sf = 1.4336 kJ/kgK.
 The mass of the water is: m = V/v1 = 0.005/0.001053 = 4.7483 kg.
 To find the final state, we will use the First Law:
 Q12 = m(h2 - h1) for closed system undergoing a constant pressure process.
 h2 = 1Q2/m + h1 = 2200/4.7483 + 467.11 = 930.43 kJ/kg.
 At P2 = P1 = 150 kPa, this is a saturated mixture.
 hf = 467.11 kJ/kg, hfg = 2226.5 kJ/kg, sf = 1.4336 kJ/kgK, and sfg = 5.7897  kJ/kgK
 s2 = sf + sfg (h2 – hf )/hfg = 1.4336 + 5.7897(930.43 – 467.11)/2226.5 =   2.6384 kJ/kgK.
 The entropy change of water is:
 Delta Ssys= m(s2 – s1) = 4.7483(2.6384 – 1.4336) = 5.72 kJ/K. 

8 0
3 years ago
A one-kilogram plate on a shelf has 19.6 J of potential energy. If the plate falls from the shelf, what will its maximum velocit
8_murik_8 [283]
(1/2) m v^2 = 19.6 
<span>.5 * 1 * v^2 = 19.6</span>
5 0
3 years ago
Read 2 more answers
7. A car travels a certain distance with a speed of
goblinko [34]
Let distance be x.

Time in going, t 1 = x/50

Time in coming, t 2 = x/40

Total time T = x/40 +x/50 = 9x/200

Average speed = total distance/ total time

=( x+x)/(9x/200)= 2x ×200/9x = 400/9 = 44.44 km/h
5 0
3 years ago
Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts
wolverine [178]

Answer:

0.304 m/s2

Explanation:

If the first child is pushing with a force of 69N to the right and the 2nd child is pushing with a force of 91N to the left. Then the net pushing force is 91 - 69 = 22 N to the left. Subtracted by 15N friction force then the system of interest is subjected to F = 7 N net force tot he left.

We can use Newton's 2nd law to calculate the net acceleration of the system

a = F/m = 7 / 23 = 0.304 m/s^2

5 0
3 years ago
How does size influence the appearance of a star? Give an example in your response.
vlabodo [156]
The size of the star defines wither of not it is a dwarf star, or a red giant.
5 0
4 years ago
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