The speed of a wave is calculated by multiplying the frequency by the wavelength. For a wave with a frequency of 2Hz and a wavelength of 4m, the speed is 8m/s.
The subject of your question is Physics, specifically the behavior of waves. The speed of a wave can be calculated using the equation speed = frequency ×wavelength. Given that the frequency of your wave is 2Hz (hertz) and the wavelength is 4m (meters), we substitute these values into our equation.
Thus, the speed of the wave is 2Hz × 4m = 8 m/s. Therefore, the wave is moving at a speed of 8 meters per second.
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appellate jurisdiction
When a court has appellate jurisdiction, then it can hear a case once a lower court has ruled on it. Hence, option B is correct.
The ability of a higher court to consider appealing from a lower court is known as appellate jurisdiction. A higher court has the authority to reconsider rulings and alter their conclusions.
The highestcourt has judicial power over circuit courts, whereas the circuit courts have judicial power over the circuit courts in the federal judiciary. With appellate jurisdiction, the majority of higher courts only review the lower court's judgment to check for any legal mistakes.
The majority of cases that the Highest Court of States decides fall under its appellate authority. It can evaluate the majority of federal court rulings as well as state court rulings affecting constitutional or statutory law. In Article 3, Section 2 of the US Constitution, even the Supreme Court's appellate jurisdiction is discussed.
Therefore, it concludes that appellate jurisdiction is the correct answer.
To know more about Appellate jurisdiction:
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b. weight
c. density