Magnetism is the force exerted by magnets when they attract or repel each other. Magnetism is caused by the motion of electric charges. Every substance is made up of tiny units called atoms. Each atom has electrons, particles that carry electric charges.
Answer:
When you slide an object there is less friction than when you roll it. an object's acceleration (change in speed) depends on the mass of the object and the amount of force applied on it. an object at rest stays at rest unless a force acts on it. ... A ball rolling on grass has more friction than a ball rolling on tile.
Answer:
Option d (108,000 J) is the correct answer.
Explanation:
The given values are:
Power,
P = 120 Watts
Time,
t = 15 min.
i.e.,
= 900 sec
As we know,
⇒ 
So,
⇒ 
On substituting the given values, we get
⇒ 
⇒ 
In every medical services rendered by a physician or
hospital, a financial obligation must be paid by the insurance or the patient. Each
patient is responsible to pay after each service for the professional fee, medical
equipment, facilities, supplies and any medical services incurred during the encounter.
Moreover, the payment collected from the insurance or
patient will be used in the medical industry where the cost of doing business
has doubled each year such as office space and clinic or hospital staffs.
