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Annette [7]
3 years ago
9

The graphs show the motion of an object in both the x and y directions. Classify the motion of this object.

Physics
2 answers:
son4ous [18]3 years ago
8 0

Answer:

b

Explanation:

Natali5045456 [20]3 years ago
6 0

B It is moving in one dimension

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10. Ron’s father finally installed cruise control on their flying car. He was having trouble because he kept of forgetting that
serg [7]

Air drag is the frictional force which is due to air molecules and it is always opposite to the direction of motion

So here direction of air resistance is always opposite to the motion or velocity

Now if Car is travelling then the force on the car due to engine is always in the direction of velocity of car

Because here engine will provide the force to accelerate the car.

So opposite to that motion there is air resistance.

So here correct answer will be

<em>B) The forward force applied by the engine</em>

7 0
3 years ago
The voltage across the terminals of an ac power supply varies with time according to V=V0cos(t). The voltage amplitude is V0 = 4
kirza4 [7]

Answer:

A) V_rms = 29 V

B) Vav = 0 V

Explanation:

A) We are told that;

V = V_o cos ωt

voltage amplitude; V = V_o = 41.0V

Now, the formula for the root-mean-square potential difference Vrms is given as;

V_rms = V/√2

Thus plugging in relevant values, we have;

V_rms = 41/√2

V_rms = 29 V

B) Due to the fact that the voltage is sinusoidal from the given V = V_o cos ωt, we can say that the average potential difference Vav between the two terminals of the power supply would be zero.

Thus; Vav = 0 V

5 0
3 years ago
A supply plane needs to drop a package of food to scientists working on a glacier in Greenland. The plane flies 90.0 m above the
romanna [79]

Answer:

d = 771.3m

Explanation:

Let's first calculate the time of flight:

Yf = Yo+Voy*t-g*t^2/2  where Voy=0. Solving for t:

t = \sqrt{2*90/9.8} =4.285s

Now we calculate the horizontal displacement, wihch is the distance from the target to drop the package:

Xf = d = Vox*t

d = 180*4.285 = 771.3m

6 0
3 years ago
Vocabulary
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We don’t have the terms
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2 years ago
Crest to crest or trough to trough
V125BC [204]
The answer is D. wavelength!
7 0
2 years ago
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