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Trava [24]
3 years ago
7

car travels 80 meters due north in 12 seconds then the car turns around and travels 30 Mi do South in 4 seconds calculate the av

erage speed and average velocity of the car during this 60-second interval use guess method​
Physics
1 answer:
Zinaida [17]3 years ago
8 0

Answer:

1) 3.1 m/s

2) 7 m/s

Explanation:

Distance due north = 80 m

Distance due south = 30 m

Distance between north and south = (80 - 30) m = 50 m

Total time = (12 + 4) sec = 16 sec

1) Average speed = 50/16 = 3.1 m/s

2) Average velocity = Total distance/total time = (80 + 30) m/16 s = 110/16 = 7 m/s

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the correct answer is D i just got it on USATestPrep. Your welcome.

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A force vector points due east and has a magnitude of 150 newtons. A second force is added to . The resultant of the two vectors
balandron [24]

Answer:

a. 240 N due east

b. 540 N due west

Explanation:

Let east be the reference direction

(a) if the resultant force has a magnitude of 390 N and points east, and the 1st force is 150N due East, then the additional force would also due east and has a magnitude of

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(b) if the resultant force has a magnitude of 390 N and points west, it would be -390N is eastern reference, and the 1st force is 150N due East, then the additional force would also due east and has a magnitude of

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2 years ago
Solve the problems.
faltersainse [42]

Answer:

v= 1.911×10^8m/s

Explanation:

n=c/v

v=c/n

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v= 1.911×10^8m/s

7 0
2 years ago
Help show how you got answers
lapo4ka [179]

The speed at which a wave of frequency of 14 Hz and a wavelength of 3 m will travel is  42 m / s

v = λ / T

f = 1 / T

v = f λ

v = Wave speed

λ = Wavelength

T = Time period

f = Frequency

f = 14 Hz

λ = 3 m

v = 14 * 3

v = 42 m / s

Frequency is the number of time an event occurs repeatedly in an unit amount of time. Its unit is hertz which in terms of SI unit is s^{-1}.

Therefore, the speed at which the wave will travel is 42 m / s

To know more about frequency

brainly.com/question/16861358

#SPJ1

4 0
1 year ago
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