Answer:
D. The car is slowing down.
Explanation:
When a car slows down, the acceleration is in the opposite direction as the velocity. With that being said, the car would have negative acceleration.
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Answer:
Net force = 3640 N
Explanation:
From first equation of motion
V = U + at
4.5 = 22 + 6.75a
( 4.5-22) ÷ 6.75 = a
acceleration (a) = -2.6m/s^2 <em>( negative</em><em> sign shows deceleration, but actual acceleration is 2.6) </em>
But Force = mass × acceleration
Force = 1400 × 2.6
Force = 3640 N
Answer:
The dimensional formula of the amplitude of a wave is given by,
[ M⁰L¹T⁰ ]
Where,
M = Mass
L = Length
T = Time
Derivation
The amplitude of wave = Maximum displacement
Since, the dimensional formula of displacement = [ M⁰L¹T⁰ ]
Therefore, the amplitude of a wave is dimensionally represented as [ M⁰L¹T⁰ ]
The new force becomes One Ninth (1/9) of the original force.
The force between two point charges (let's say 
) is given by the following formula:
Force 
divided by ( 
squared)
Here r is the distance.
If we multiply r by three then after squaring it will become 
squared.
Let's rewrite the formula and call it new Force:
New Force 
divided by 
squared )
Now just separate the 9 :
New Force 
divided by 
Squared ))
New Force 
(Force)
So turns out that the new force becomes One Ninth (1/9) of the original force.
A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to define force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
Learn more about force brainly.com/question/13191643
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Answer:
Inertia is the tendency of all objects to resist any change in motion. Inertia causes a moving object to stay in motion at the same velocity (speed and direction) unless a force acts on it to change its speed or direction. It also causes an object at rest to stay at rest.
