I'm pretty your it's magnetism though. Like magnets
Answer:28 m
Explanation:
Given
Direction is 
North of east i.e. 
with x axis
Also ball moved by 33 m
therefore its east component is 33cos58=17.48 m
Northward component 
Answer:
D) Aerobic respiration is very efficient and produces a large amount of energy, while anaerobic respiration is not very efficient and produces a small amount of energy.
Explanation:
Anaerobic respiration, which uses glucose and no oxygen, produces less energy compared to aerobic respiration.
Answer:
109.66km
Explanation:
Velocity is defined as the change in displacement of a body with respect to time.
Velocity = displacement/Time
Displacement = velocity * time
A truck is traveling due north at 75 km/hr approaching a crossroad and perpendicular road a police car is traveling west toward the intersection at 80 km/hr, then the resultant velocity is gotten using the pythagoras theorem since they are both perpendicular to each other.
v² = 75²+80²
v² = 5625+6400
v² = 12,025
v = √12,025
v = 109.66km/hr
If both vechicles reaches cross road in exactly one hour, the displacement of the truck with respect to the police car = 109.66km/hr * 1 hour
Displacement of the truck with respect to the police car = 109.66km
