Over a million students use our free study notes to help them with their homework
In a car crash the car decelerates really quickly. If there is no air bag your head continues to travel at the same speed as before until it hits the dash board and decelerates really quickly upon impact,...
When something emits light, the waves produced usually have their oscillation moving at all different angles. You can have some oscillating left and right, up and down, at a 45-degree angle, or any angle ...
Current and voltage are closely related properties of a circuit, one is caused by the other. What we refer to as voltage is in reality just a difference in charges, so, a difference in the amount o...
-They have a period of 24 hours -They lie above the equator A satellite in a polar orbit could be used for various things such as weather forecasting, GPS, to provide network services such as internet and...
An object will be stable if the centre of mass, the point at which all of the mass of the object is concentrated, is lower to the ground. It will also be stable if there is a wide base. Objects with low c...
←
73
74
75
76
77
→
Internet Safety
Payment Security
Cyber
Essentials
