Answer:
move the point of the fulcrum
Explanation:
you can do this by moving yourself closer to the pivot point, or moving the sea saw so that your sister has more of the board on her side
Answer:
The cans should move towards each other. This is due to Bernoulli's principle
that the air pressure will be reduced in the area between the cans. This is similar to lift on an airplane wing due to the faster moving air over the top of
the wing or the curving of a pitched baseball due to the rotation of the ball
causing greater air pressure on one side of the ball as compared to the air pressure on the other side of the ball.
Answer:
= 40 cm
Explanation:
given data
string length = 30 cm
solution
we take here equation of length that is
L = ...............1
so
total length will be here
so will be
= 40 cm
Answer:
69.74 N
Explanation:
We are given that
Weight of sled=49 N
Coefficient of kinetic friction
Weight of person=585 N
Total weight==mg=49+585=634 N
We know that
Force needed to pull the sled across the snow at constant speed,F=Kinetic friction
Where N= Normal=mg
Hence, the force is needed to pull the sled across the snow at constant speed=69.74 N
Coal is formed from the remains of vegetations.