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navik [9.2K]
3 years ago
5

Assume this car is driven off a cliff. How many arrows of force need to be drawn in the free body diagram? Assum no air resistan

ce
Answers:
five
one
four
three

Physics
2 answers:
kirza4 [7]3 years ago
4 0

Answer:

4

Explanation:

friction

weight

normal reaction

force to overcome inertia

gtnhenbr [62]3 years ago
3 0

Answer:

1

Explanation:

--->

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Calculate the acceleration of a bus full speed changes from 6 miles to 12 miles over a period of three seconds
Jet001 [13]

Answer:

0.90m/s²

Explanation:

Given parameters:

Initial speed  = 6miles/hr

Final speed  = 12miles/hr

Time taken = 3 seconds

Unknown:

Acceleration = ?

Solution:

Acceleration is the rate of change of velocity with time. It is mathematically given as:

         Acceleration  = \frac{Final speed - Initial speed}{Time}

We need to convert miles/hr to meters/seconds

Initial speed = 6 x \frac{miles }{hour} x \frac{1hr}{3600s}  x \frac{1609.34m}{1mile}

                      = 2.68m/s

Final speed = 12 x \frac{1609.34}{3600}  = 5.37m/s

      Acceleration  = \frac{5.37  - 2.68}{3}   = 0.90m/s²

4 0
3 years ago
The main purpose of the turbine in a turbojet engine is to
Nuetrik [128]

Answer:

The main purpose of the turbine in the turbojet engine is to Drive the compressor.

Explanation:

5 0
3 years ago
Vector A has magnitude 8.00 mm and is in the xy-plane at an angle of 127∘ counterclockwise from the +x–axis (37∘ past the +y-axi
Ilia_Sergeevich [38]

Answer:

-75.35°

Explanation:

Let C be the sum of the two vectors A and B. Hence, we can write the following  

A_{x} +B_{x} =C_{x} ......(1)\\A_{y} +B_{y} =C_{y} ......(2)

but since the vector C is in the -y direction, C_{x}  = 0 and C_{y} = —12 m.  

Thus  

B_{x} =-A_{x} =-[-Acos(180-127)]=(8)*cos(53)\\B_{x} =4.81m

similarly, we can determine B_{y} by rearranging equation (1)  

 B_{y} =C_{y} -A_{y} =-12m-[(8)*sin(53)\\B_{y} =-18.4m

so the magnitude of B is

B=\sqrt{B_{x}^2+B_{y}^2  } \\B=19m

Finally, the direction of B can be calculated as follows  

Ф=tan^{-1} (\frac{B_{y} }{B_{x} } )\\=-75.35

hence the vector B makes an angle of 75.35 clockwise with + x axis

8 0
4 years ago
How does vapor release energy into the atmosphere
Oduvanchick [21]
I would say a because i just had this 
4 0
3 years ago
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Which statement accurately describes a similarity between Earth and Venus?
nikitadnepr [17]

Your answer is B

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8 0
3 years ago
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