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Liono4ka [1.6K]
3 years ago
13

Help with science plz! Giving brainlist

Physics
1 answer:
garri49 [273]3 years ago
5 0
Friction reflects the wheels of a roller coaster so it may fall

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A student runs 12 m from school to their house and
larisa [96]
Answer: 24 m


explanation: it would be 24 because if it’s 12 m there and then 12 m back then that would be 24 m all together . if it’s 12 all together there and back,, the answer would be 6 m there and 6 m back:)

hope this helped in some type of way !
3 0
3 years ago
Read 2 more answers
A rocket in outer space is traveling toward a far-off planet. An astronaut turns on the rocket’s engines, which exerts a force o
vazorg [7]

Answer:

It will continue moving at a constant speed because no forces are acting on it.

Explanation:

By the second law of Newton, the force is proportional to the acceleration. If there is no force, there is no acceleration. So, when the astronaut turns off the engines, the rocket will have no acceleration which means that the speed will be constant.

Therefore, the answer is:

It will continue moving at a constant speed because no forces are acting on it.

5 0
1 year ago
Why do you think scientists often find value in looking at and comparing anomalies within data??
Dafna1 [17]

Absolutely, as anomilies can show inconsistencies with data and hypothesis they may have and may actually assist in refining the accuracyof their ideas by not only encompassing the most commonly-occuring phenomena, but also the more seldom occuring scenarios as well.

7 0
4 years ago
Read 2 more answers
The density of mercury is 13.6 g/ml. what is its density in lbs/L
Valentin [98]

Answer

<em><u>density of mercury is 13.6 g/ml and that 1 lb = 0.45 kg</u></em><em><u>.</u></em>

4 0
4 years ago
Suppose the posted designated speed for a highway ramp is to be 30 mph and the radius of the curve is 700 ft. At what angle must
Basile [38]

Answer:

4.92°

Explanation:

The banking angle θ = tan⁻¹(v²/rg) where v = designated speed of ramp = 30 mph = 30 × 1609 m/3600 s = 13.41 m/s, r = radius of curve = 700 ft = 700 × 0.3048 m = 213.36 m and g = acceleration due to gravity = 9.8 m/s²

Substituting the variables into the equation, we have

θ = tan⁻¹(v²/rg)

= tan⁻¹((13.41 m/s)²/[213.36 m × 9.8 m/s²])

= tan⁻¹((179.8281 m²/s)²/[2090.928 m²/s²])

= tan⁻¹(0.086)

= 4.92°

4 0
3 years ago
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