Answer:
Radar is used in space and in military
Explanation:
Radar helps to identify the type of forget that is in military it can be used to identify the enemies. It helps to identify the position of the object i.e helps to determine how far the object or subject is. It can be used to guide objects in space and monitor movements of other space objects.
Answer:
Explanation:
Circuit breaker is an automatic electrical switch which cuts the power when there is surge in current.
Advantages of Circuit breaker
- They are more reliable i.e. they are not replaced frequently
- Efficient and easy to safeguard electrical appliance
Disadvantage of Circuit breaker
- They are less sensitive than fuses i.e. fuses are much faster than circuit breaker.
<span>A.
The model of the atom evolved as scientists have made new discoveries.</span>
The unit for power is Watts. the newton is a unit for force. joules for energy and meters for distance
Gravitational forece can only attract whereas electomagatism can be attractive and repulsive
