3 years ago

What does a diagonal upward sloping line on a position time graph mean?

Physics

1 answer:

mart [117]3 years ago

5 0

diagonal line means the velocity is constant.

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The planet with the greatest temperature extremes is _____.

RoseWind [281]

As you may think that Mercury is he closest planet to the sun,tho its not hotter than Venus.Venus temperature.The surface is 462 °C or 863 °F.

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3 years ago

Read 2 more answers

Henrietta is jogging on the side-walk at 3.05 m/s on the way to her physics class. Bruce realizes that she forgot her bag of bag

shusha [124]

Answer:

12.9121148614 m/s

35.9393048982 m

Explanation:

t = Time taken

u = Initial velocity

s = Displacement

a = Acceleration

g = Acceleration due to gravity = 9.81 m/s² = a

$s=ut+\frac{1}{2}at^2\\\Rightarrow 38=0t+\frac{1}{2}\times 9.81\times t^2\\\Rightarrow t=\sqrt{\frac{38\times 2}{9.81}}\\\Rightarrow t=2.78337865516\ s$

Time taken for the bag to fall is 2.78337865516 seconds

Time she has been jogging for

9+2.78337865516 = 11.78337865516 seconds

Total distance traveled by her

$s=vt\\\Rightarrow s=3.05\times 11.78337865516=35.9393048982\ m$

Henrietta is 35.9393048982 m away

Velocity of throwing

$\dfrac{35.9393048982}{2.78337865516}=12.9121148614\ m/s$

The velocity of throwing is 12.9121148614 m/s

3 0

4 years ago

Which process usually requires water?A.Physical weatheringB.ErosionC.Mass wastingD.Chemical weathering

MAXImum [283]

Answer:

B erosion

Explanation:

Erosion would usually require water

8 0

3 years ago

Two vectors have magnitudes 3 and 4 . how are the directions of the two vectors related if: a/the sum has magnitude 7.0

Marina CMI [18]

Same directions
Perpendicular
Opposite directions

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3 years ago

A ship's boiler steam comes out at 112 C and pushes through the system, exiting into the condenser,

solniwko [45]

Answer:

D: 0.239

Explanation:

Equation for ideal efficiency is;

η = 1 - (T_c/T_h)

We are told that;

steam comes out at 112° C. Thus, T_h = 112°C. Converting to Kelvin gives; T_h = 112 + 273 = 385 K

The one exiting into the condenser is kept at 20°C. Thus; T_c = 20 + 273 = 293 K

Thus;

η = 1 - (293/385)

η = 0.239

5 0

3 years ago