Mass
The mass of an object attract other objects with mass but, and objet has to have more mass that another object to physically move it
Example
The sun and the earth the sun has a large enough mass to not only make our planet rotate around him but seven more
The fundamental mode of vibration of a wave is defined as that which has the LOWEST frequency
Answer:
b
Explanation:
if there is a fire there is no time to waist
Answer:
The are moving with a speed of 25 m/s after the collision.
Explanation:
assuming the mass (m) of the cars are equal, let v = 20 m/s be the velocity of the driver in the front and u = 30 m/s be the velocity of the driver behind. let V be the velocity of the cars after the collision.
then, by conservation of linear momentum:
m×(v + u) = V×2×m
(v + u) = V×2
V = (v + u)/2
= (20 + 30)/2
= 25 m/s
Therefore, the are moving with a speed of 25 m/s after the collision.
B. Parallel to the surface. Specifically parallel and opposite of the motion of the object.
