3 years ago

Do changes that cannot be easily reserved such as burning observe the law of conversation of mass

Physics

1 answer:

Marina CMI [18]3 years ago

7 0

Yes they do observe the law of conservation of mass

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A pendulum is swinging back and forth with a period of 2.0 seconds here on Earth. This pendulum is then brought to the Moon, whe

kompoz [17]

Answer:

A greater period.

Explanation:

The period of a simple pendulum is represented by the following formula:

$T = 2\pi\cdot \sqrt{\frac{l}{g} }$

Where:

$l$ - Length of the pendulum

$g$ - Gravity constant

Given that gravity constant in the Moon is less than on Earth, period shall be greater.

7 0

3 years ago

In the qualifying round of the 50-yard freestyle in the sectional swimming championship, Dugan got an early lead by finishing th

Brilliant_brown [7]

Answer:

$V_{average}$ = 2.471 yards/s

Explanation:

We can calculate the average velocity thus:

$V_{average} = \frac{D_{1}+D_{2} }{t_{1}+t_{2}}$

Where

$D_{1}$ : First 25 yards

$t_{1}$ : Time to travel $D_{1}$

$D_{2}$ : Seconds 25 yards

$t_{2}$ : Time to travel $D_{2}$

Thus

$V_{average} = \frac{25 + 25}{10.01 + 10.22}$

$V_{average}$ = 2.471 yards/s

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3 years ago

The farther the electron is from the nucleus, the more __________________ it has. A) charge B) energy C) mass D) pull

Vinil7 [7]

B.)Energy

i need 20 characters

3 0

3 years ago

Read 2 more answers

Question 4 (point)

lord [1]

Answer:

Positive

Explanation:

Tbh I dont have an explanation I just wanted to give the answer but its for sure correct!

4 0

4 years ago

If you drop an object from a height of 1.9 m, it will hit the ground in 0.62 s. if you throw a baseball horizontally with an ini

faltersainse [42]

That's the cool thing about free fall. The amount of time it takes to fall remains the same.

In this case, a ball that is simply dropped from rest will fall at the same rate as a ball that had some umph in the horizontal direction.

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3 years ago