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aniked [119]
4 years ago
10

PLEASE HELP ASAP!!!!!!!!!!!!!!!!!! This investigation is a controlled experiment, so you can change only one variable at a time.

Decide whether you’ll change the amount of baking soda or the amount of vinegar. Give a reason for your choice.
Physics
1 answer:
natta225 [31]4 years ago
6 0
I would choose the vinegar before baking soda because the baking soda is what is making the chemical reaction with the vinegar. Both need eachother but the vinegar is a less powerful reactant than the baking soda.
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Floating piece of wood - buoyancy question.?
sashaice [31]
No. because the weight is the same. no m9re water displacement
7 0
3 years ago
Someone on Earth would measure the star Vega to be 25 light years away. If you fly a spaceship to Vega at 0.999c, you will measu
gladu [14]

If you fly a spaceship to Vega at 0.999c, you will measure the distance to be much less than 25 light years.

Most space objects use light-years to represent their distance. Light-years are the distance that light travels during the year on Earth. Light-years are about 6 trillion miles (9 trillion km). This is a 6 followed by 12 zeros.

At the same speed, a movement equivalent to one light-year takes about 11.3 billion days. Life expectancy for Americans is currently estimated at 78.74 years, which is equivalent to 28,740 days. Therefore, to get there, you need to live about 400,000 times as long as the average American.

Learn more about light years here: brainly.com/question/1224192

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4 0
2 years ago
An object with a velocity of
algol [13]

Answer:

v = 1.7 m/s

Explanation:

Given that,

Initial velocity of the object, u = 1 m/s

Acceleration of the object, a = 1 m/s²

We need to find the velocity of the object after moving 1 m. Let v be the velocity. Using third equation of kinematics to find it i.e.

v^2-u^2=2ad\\\\v^2=2ad+u^2\\\\v^2=2(1)(1)+1^2\\\\v=\sqrt3\\\\v=1.7\ m/s

So, the final velocity of the object is 1.7 m/s.

4 0
4 years ago
Why do we add the masses together after that inelastic collision?
fomenos

Answer:An inelastic collision is one in which the internal kinetic energy changes (it is not conserved). A collision in which the objects stick together is sometimes called perfectly inelastic because it reduces internal kinetic energy more than does any other type of inelastic collision.People sometimes think that objects must stick together in an inelastic collision. However, objects only stick together during a perfectly inelastic collision. Objects may also bounce off each other or explode apart, and the collision is still considered inelastic as long as kinetic energy is not conserved.

hope this helps have a nice day❤️

Explanation:

5 0
3 years ago
If dede's car goes from 0m/s to 8 m/s in 1 sec. What is her acceleration
ch4aika [34]

a = 8ms⁻¹ - 0ms⁻¹  / 1s

a = 8ms⁻¹ / 1 s

a = 8ms⁻² .

8 0
3 years ago
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