Explanation:
The speed of light is 300,000,000 m/s. There are 8 zeros, so in scientific notation, the speed is 3×10⁸ m/s.
Answer:
0.84μF
Explanation:
Charge is same through both the capacitors since they are in series. Total voltage is the sum of the voltages of the individual capacitors.. So voltage across the 2nd capacitor is 120- 90 =30 V.
Charge across first capacitor is Q = C₁V₁ = 90 x0.28 = 25.2μC
Therefore capacitance of 2nd capacitor =
C₂ = Q÷V₂ = 25.2÷30 = 0.84 μF
Water is a slow conductor of heat. Land absorbs heat quicker, so the sand next to the lake will heat up quicker than water.
Answer: Newton's third law of motion states that for every action, there is an equal and opposite reaction. When a player hits a ball with a bat, the force the player exerted on the ball through the bat gave the ball a push force in the forward direction.
Explanation:
Faults are cracks on the ground that is caused by the movement of the plate tectonics. They usually cause rocks to break.
Anitclines and synclines form when rocks are also put under stress, but they fold, not necessarily break apart. They create sharp folds.
Island arcs are formed through volcanic events and not rocks.
Mid ocean ridges are formed when oceanic plates move apart.
Looking at their differences, the answer to your question is B.
