Answer:
The speed of the object is (
)m/s
The magnitude of the acceleration is 4.00m/s²
Explanation:
Given - position vector;
r = (2.0 + 3.00t)i + (3.0 - 2.00t²)j -------------------(i)
To get the speed vector (
), take the first derivative of equation (i) with respect to time t as follows;
= 
=
=
------------------------(ii)
To get the acceleration vector (
), take the first derivative of the speed vector in equation(ii) as follows;


j
The magnitude of the acceleration |a| is therefore given by
|a| = |-4.00|
|a| = 4.00 m/s²
In conclusion;
the speed of the object is (
)m/s
the magnitude of the acceleration is 4.00m/s²
Answer:

Explanation:
To solve this equation we will have to consider that the bubble is filled with an Ideal Gas and as such we can use the Ideal Gas Law

Where
= Pressure
= Volume
= Moles
= Ideal Gas Constant
= Temperature
Now since we know that the value for the temperature and moles is constant we can simply use Boyles Law for the two states

Let us look at the two states
State 1 (at top)
Pressure = 
Volume = 
State 2 (at bottom)
Pressure = 
Where
= Density of liquid (1000 kg/m³)
= Acceleration due to gravity (9.8 m/s²)
= Height of liquid (0.200 m)
Pressure = 
Volume = 
Inputting these values into the Boyles Law

One scientist believe that the ozone layers of the earth had been weakening and waters current changes directly over 5 to 7 months. hope that helped
Answer:
ionic bonds formed from the electrostatic attraction between oppositely charged ions in a chemical compound.
Explanation:
This should help
there always needs to be 2 electrons in the first shell then 8 electrons in each shell and continue till you not have any more number of electron left