Answer with Explanation:
We are given that
a.Initial velocity of vessel,u=0
According to law of conservation of momentum
Where M=Mass of vessel
m/s
Magnitude,
b.
Hence, direction of the velocity of third piece=45 degree
The main assumption is that the ball followed the same way uphill and back, so it was at the same initial point when it rolled back 4 m.
At this moment the displacement was zero (remember that the displacement is the difference between the final position and the initial position).
From that point the ball displaced other 24 m down (28m - 4m = 24 m). And, that is the magnitude of the ball's displacement.
Answer: 24 m.
Answer:
A. Time and space are relative.
B. The speed of light in a vacuum is constant for all observers.
D. Physical laws change based on an observer's motion.
E. Physical laws remain constant regardless of an observer's motion.
Explanation:
Socialization is the process of internalization of the norms and ideologies of society by an individual. It encompasses learning and teaching to attain social and cultural continuity. It also has various forms. One of which is the MASS MEDIUM/MEDIA which is a form of communication that does not need personal contact to relay or convey and information. Examples of which are books, films, internet, magazines and so forth.
Answer:
2.2N
Explanation:
Given parameters:
Work done = 379.5J
Height = 173m
Unknown:
Amount of force exerted on the sled = ?
Solution:
The amount of force she exerted on the sled is the same as her weight.
Work done is the force applied to move a body through a distance.
Work done = mgh
m is the mass
g is the acceleration due to gravity
h is the height
mg = weight;
Work done = weight x h
379.5 = weight x 173
weight = 
= 2.2N
