According to definition of general chemistry matter is any substance which has atleast a mass and occupies a volume.
Matter is of three types
- Solid
- Liquid
- Gas
Answer:

Explanation:
We know that speed is defined as distance moved per unit time hence expressed as
where v is speed in m/s, d is distance in m and t is time in seconds. Making d the subject of the above formula then

Substituting 343 m/s for d and 10 s for t then

Therefore, the distance between speaker and deter is 
Answer: -2m/s²
Explanation:
Each second, the acceleration decreases of 2m/s²
N.B.: in physics, deceleration is also acceleration.
A stone is thrown straight up. While the stone is rising: Group of answer choices its acceleration is upward and decreasing its acceleration is upward and constant its acceleration is upward and increasing its acceleration is zero None of the available answers are correct. its <u>acceleration </u><u>is zero</u>
<h3>What is
acceleration ?</h3>
The rate at which an object's velocity with respect to time changes is referred to as acceleration in mechanics. It is a vector quantity to accelerate (in that they have magnitude and direction). The direction of the net force acting on an object determines the direction of its acceleration.
According to Newton's Second Law, the amount of an object's acceleration depends on two factors: the net balance of all external forces acting on the object; the magnitude of the acceleration is directly proportional to the net resulting force. For instance, when a vehicle begins at rest (zero velocity in an inertial frame of reference) and moves straight ahead at increasing speeds, it is accelerating in the direction of travel.
To learn more about acceleration from the given link:
brainly.com/question/18320098
#SPJ4
F = MA
A = F/M
200/80 = 2.5
The acceleration is 2.5 m/s^2