-- loud radio
-- heavy rain
-- girl friend in the car
-- misguided sense of privilege or importance
-- misguided sense of immortality
Answer:
2.5m/s^2
Explanation:
Since there is no friction, the only force acting on the box is the applied force
We can now use the equation Fnet = ma
and we can rearrange for a
a = Fnet/m
now input the values
a = 50N/20kg
a = 2.5 m/s^2
Answer:
The initial speed of the block is 1.09 m/s
Explanation:
Given;
mass of block, m = 1.7 kg
force constant of the spring, k = 955 N/m
compression of the spring, x = 4.6 cm = 0.046 m
From principle of conservation of energy
kinetic energy of the block = elastic potential energy of the spring
¹/₂mv² = ¹/₂kx²
mv² = kx²

where;
v is the initial speed of the block
x is the compression of the spring

Therefore, the initial speed of the block is 1.09 m/s
Answer:
B
Explanation:
graph b shows a steady pace of movement for 20 minutes and then shows a plateau in the distance, showing that while time keeps moving (obviously), the distance doesn't change. then after 5 minutes, the student gets up and starts running again. hope this helped!
I want to say frequencies would be the answer. I could be wrong though. Hope this may have helped!