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3 years ago

Which question can be answered by science?

2 answers:

Alex3 years ago

6 0

Answer A because you can go through a series of scientific steps to conduct an experimenter and scientifically get your answer ;)

creativ13 [48]3 years ago

4 0

In my opinion, A. You can actually find a solution by testing the theory. B C & D are just answered with opinions.

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a train traveling 50 miles per hour leaves the station in detroit and travels 300 miles to boston how long did. it take ?

timurjin [86]

Answer:

it should be 6 hours

Explanation:

ive been on trains

4 0

3 years ago

What type of energy conversion occurs when you place your feet near the fireplace and they become warm? (2 points)

WINSTONCH [101]

Answer:

Thermal conversion

Explanation:

Uhhh how do i explain this

7 0

3 years ago

A metal wheel 50 cm in radius rotates on a desk anti-clockwise at a constant rate of 800 rev/min about its central axis. Determi

Murljashka [212]

Answer:

(a) 83.73 rad/s

(b) 251.2 m/s

(d) 5024 m

Explanation:

R = 50 cm = 0.5 m, f = 800 rpm = 800 / 60 rps

(a) Angular velocity, w = 2 x 3.14 x f = 2 x 3.14 x 800 / 60 = 83.73 rad / s

(b) The relation between linear speed and the angular speed is

V = r w

Here, r = 30 cm = 0.3 m

V = 0.3 x 83.73 = 25.12 m/s

(d) Time period T = 2 x 3.14 / w

T = 2 x 3.14 / 83.73 = 0.075 sec

In 0.075 second, angle turn = 360 degree

In 120 second, the angle turn = 360 x 120 / 0.075 = 576000 degree

In 360 degree, the distance traveled = 2 x pi x R

In 576000 degree, the distance traveled = 2 x 3.14 x 0.5 x 576000 / 360

= 5024 m

6 0

3 years ago

Answer please. I will mark brainiest if right.

Alexandra [31]

Answer:

In this order from 1-10: F, F, F, T, T, F, F, T, T, F

Explanation:

Planets are named almost entirely from Roman gods and goddesses,

The sun is not the center of the universe, just the center of the solar system,

The solar system is believed to be formed in a gaseous nebula,

Planets and stars did form when matter clumped together with gravity,

Our solar system is believed to have 5 dwarf planets,

Mercury is the closest planet to the sun,

Jupiter has the greatest size and diameter,

Orbits of planets are more elliptical, meaning it's more of an oval shape,

Our sun is BY FAR not the only star with planets around it.

3 0

3 years ago

Name a common, everyday circumstance in which objects are under constant acceleration and describe why those objects are under c

MatroZZZ [7]

Answer:

Your age, because you never stop aging even when you're dead you still aging even though you're not alive.

Hope this helped

6 0

3 years ago

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