Omni-directional. It means all directional.
Answer:
The the coefficient of kinetic friction between the horizontal surface and the block is 0.536.
Explanation:
Given that,
Spring constant = 105 N/m
Mass of block = 2.00 kg
Compress = 0.100 m
Distance = 0.250 m
We need to calculate the coefficient of kinetic friction
Using relation between friction force and restoring force

Put the value into the relation



Hence, The the coefficient of kinetic friction between the horizontal surface and the block is 0.536.
Answer:
Translation:
A baseball is thrown from a bat with a horizontal speed of 20 m / s. In a time of 0.25 s, how far will you have traveled horizontally and how much will you have fallen vertically?
Explanation:
This question deals directly with projectile motions and we can use modifications of equation of motion since it's a horizontal motion.
(a). How far will it have travelled;
X = Vo * t
X = 20 * 2.5 = 50m
(b). How much will it have fallen vertically?
y = Voy + ½gt²
But Voy = 0
y = ½ * 9.8 * 2.5²
y = 30.625m
The forces the people exert on the plank is 100.45N
<u>Explanation:</u>
Force of man 1 on plank = 
Force of man 2 on plank = 

Gravitational force on plank = 
Gravitational force on box = 
Given hint is forces of people is equal to forces on plank and box

in the state of equilibrium normal force is equal and opposite to gravitational force.
Answer:
0.17214 m
Explanation:
P = Pressure difference between inside and outside the chest cavity = 0.05 atm
= Density of fresh water = 1000 kg/m³
= Density of water in the Dead Sea= 1500 kg/m³
h = Height
In fresh water

In dead sea

The difference in height is 0.51643-0.34429 = 0.17214 m