Answer:
the diver's speed just before she enters the water is 8.718 m/s.
Explanation:
Given;
height of the diving platform, h = 3.8 m
initial velocity of the diver, u = 1.24 m/s
the diver's speed just before she enters the water is her final velocity, = v
Apply the following kinematic equation to determine the final velocity of the girl;
v² = u² + 2gh
v² = (1.24)² + 2(9.8 x 3.8)
v² = 76.018
v = √76.018
v = 8.718 m/s
Therefore, the diver's speed just before she enters the water is 8.718 m/s.
Invertebrates vary tremendously in their body composition. It's common for invertebrate species to have four distinct stages to their life cycle: egg, larva, pupa, and adult, although this life cycle can vary. For example, octopus and squid hatch and grow into adults without a larva or pupa stage.
Answer:
E =9525.6 J
Explanation:
Given that
Current ,I = 4.9 A
time ,t = 5.4 min
Voltage difference ,ΔV = 6 V
energy delivered by battery in time t is given as
E=V I t
where V is voltage, I is the current and t is the time.
now putting the values in above equation
E= 6 x 4.9 x 5.4 x 60 J ( 1 min = 60 s , 5.4 min = 5.4 x 60 s)
E =9525.6 J
Therefore the energy reduced will be 9525.6 J
This is because as the earth rotates on its axis and revolves around the sun constellations dont move so they are only seen during certain months
