Volum at the beginning:
Volum at the end:
α for helium =
As the result you get:
Final volume of the balloon is 22,9264 liters.
(Only if it doesn't explode during being heated ;) just a joke)
C-how they are used. An incline plane is used as a ramp and a wedge is used in between something.
Because the air inside the tires is kept at high pressure.
In fact, the force applied by the tires upwards to counter-balance the weight of the car (pushing downwards) is
where p is the pressure of the air inside the tires and A is the area of contact between the tire and the car. Therefore, a higher pressure means a larger force F, and eventually if the pressure p is higher enough the force F will be large enough to counterbalance the weight of the car.
Answer:
The force per unit length of the wire is 6 x 10⁻⁵ N/m.
Explanation:
Given;
distance between the two parallel wires, r = 4 cm
current in the first wire, I₁ = 2 A
current in the second wire, I₂ = 6 A
The force per unit length of the wire is calculated as;
Therefore, the force per unit length of the wire is 6 x 10⁻⁵ N/m.
The elements required for a fire to start are
oxidizing agent, heat, and fuel.
The oxidizing agent is usually oxygen - when there is a lot of air, of oxygen, a fire can broke out more easily if the conditions are right - if there is no oxygen, the fire won't start - we put out a fire by depriving it of oxygen. Next, you need some heat and fuel to start a fire, which can all be seen in this triangle.
