10 to 15 minutes
contact force is a force which will act when we have a contact to a object and in non contact force the object will change its state of motion without the contact of any thing
Wind is a non-contact force. But if someone is blowing on an object it would be a contact force because a person is causing the movement of another object.
When an object is charged by contact, the object getting the charge has the same charge compared with that of the object giving the charge. so if the object giving the charge has a positive charge, so does the object getting the charge
it is a noncontact force because before two objects touch, the electical charge held in one of the objects will "jump" to the other object, causing a static shock
It is contact force
To properly disinfect an item, it would need to be saturated or immersed in a disinfectant solution for at least 10 minutes. But, 15-20 minutes would be better. If you are trying to sterilize the item, you would need to leave it soaking for at least half an hour.
To properly disinfect an item, it would need to be saturated or immersed in a disinfectant solution for at least 10 minutes. But, 15-20 minutes would be better. If you are trying to sterilize the item, you would need to leave it soaking for at least half an hour.
Because - allowing the residue of disinfectant to air-dry - leaves the active ingredients on the surface longer. Wiping it dry with a cloth defeats the object of keeping the surface bacteria-free.
contact force is a force which will act when we have a contact to a object and in non contact force the object will change its state of motion without the contact of any thing
Non-contact forces are forces exerted on an object by another object which is not in contact with it, a good example being gravitational force.
[object Object]
Wind is a non-contact force. But if someone is blowing on an object it would be a contact force because a person is causing the movement of another object.
When an object is charged by contact, the object getting the charge has the same charge compared with that of the object giving the charge. so if the object giving the charge has a positive charge, so does the object getting the charge
An object can be electrostatically charged by friction, contact or induction.
it is a noncontact force because before two objects touch, the electical charge held in one of the objects will "jump" to the other object, causing a static shock
An object can be electrostatically charged by friction, contact or induction.
It is contact force