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<span>35x1.3/1000000 = 0.0000455g = 0.0455 mg = 45.5 microgram/L</span>
Answer:
The force of friction is 2 N. The object isn't moving.
Explanation:
The frictional force on a object is given by it's normal force multiplied by the coefficient of static friction between the object and the surface. In this case since the surface is horizontal, the normal force is equal to the weight of the block with the oposite direction. So we have:
F_friction = 0.5*N = 0.5*(10) = 5 N
Since the friction force is oposite to force that's acting on the block and it's greater than that force, the object won't move and the real force will be the same as the applied force. So we have:
F_friction = 2 N
Answer:
the two skaters will meet at a distance of 9.75 m from the initial position of 35 kg skater
Explanation:
Since there is no external force on the system of two skaters
So the two skaters will meet at the position of their center of mass
so let the position of 35 kg skater is origin
then the position of other skater is 15 m
now by the formula of center of mass we have
so the two skaters will meet at a distance of 9.75 m from the initial position of 35 kg skater
A = p + n (2) where n is the number of neutrons. When using atomic mass units (a.m.u.), the mass of each nucleon (proton or neutron) is 1 a.m.u, so the mass number also corresponds to the mass number.