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lora16 [44]
3 years ago
8

A rock falls off a cliff, its final velocity was 85m/s, how long did it fall before hitting the ground?

Physics
1 answer:
RoseWind [281]3 years ago
6 0

Answer:

huhfztifiydisdhzjtxutdiydutzutdtid

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Calculate the average velocity of a car that travels 555 km north east in 3.7 hours
Vera_Pavlovna [14]

Your answer:

150 kilometer's per hour.

7 0
3 years ago
A uniform metal tube of length 5m and mass 9kg is suspended by two vertical wires attached at 50cm and 150cm respectively from t
Elena-2011 [213]

Answer:

force (tension) of 29.4 N (upward)  in 100 cm

force (tension) of 58.4 N (upward)  in 200 cm

Explanation:

Given:

Length of tube = 5 m (500 cm)

Mass of tube = 9

Suspended vertically from 150 cm and 50 cm.

Computation:

Force = Mass × gravity acceleration.

Force = 9.8 x 9

Force = 88.2 N

So,

Upward forces = Downward forces

D1 = 150 - 50 = 100 cm

D2 = 150 + 50 = 200 cm

And F1 = F2

F1 x D1 = F2 x D2

F1 x 100 = F2 x 200

F = 2F

Total force = Upward forces + Downward forces

3F = 88.2

F = 29.4 and 2F = 58.8 N

force (tension) of 29.4 N (upward)  in 100 cm

force (tension) of 58.4 N (upward)  in 200 cm

4 0
3 years ago
Determine the angle between the directions of vector A with rightwards arrow on top = 3.00i + 1.00j and vector B with rightwards
sertanlavr [38]

Answer:

C) 26.6

Explanation:

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6 0
3 years ago
HELPPP WILL MARK BRAINLIST What type of image is formed by a lens if m= 2.7?
Gelneren [198K]

Answer:

the answer is C

Explanation:

So, the formed image will be real and inverted.

6 0
3 years ago
A jet - powered car called the spirit of America required 9600meters to stop from its highest speed . If the car decelerated at
Mazyrski [523]
v^{2} =  u^{2}  +  2ar
0 = u^2 + 2*(-2)*9600
u^2 = 38400
u = 195.96 m/s
6 0
3 years ago
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