8. Am Sporttag rennen Melanie und Stefanie gemeinsam den 200-Meter-Laut. Melanie legt 80 m in 14 s zurück und Stefanie braucht für 30 m 6 s . Beide halten ihre Geschwindigkeit während des ganzen Laufes ein. Wie viele Meter vom Ziel entfernt ist Stefanie, wenn Melanie die Ziellinie erreicht?

एक सरल आवर्ती दोलक की गतिज ऊर्जा 10 Hz की आवृत्ति दोलित होती है । दोलक एक चरम स्थिति से दूसरी स्थिति तक कि समय लेगा? \( \begin{array}{llll}\text { (1) } 0.1 \mathrm{~s} & \text { (2) } 0.2 \mathrm{~s} & \text { (3) } 0.4 \mathrm{~s} & \text { (4) } 0.5 \mathrm{~s}\end{array} \)

4) Suppose a uniform electric field exists in the room in which you are working, suc at the lines of force are horizontal and at right angles to one wall. As you walk towar e wall from which the lines of force emerge into the room, are you walking toward Points of lower potential Points of the same potential (equipotential line)? All Choices Are Wrong 5) Which of these statements is not characteristic of a static magnetic field? It is solenoidal. Magnetic flux lines are always closed. It has no sinks or sources All Choices Are Wrong

8. Am Sporttag rennen Melanie und Stefanie gemeinsam den 200-Meter-Laut. Melanie legt 80 m in 14 s zurück und Stefanie braucht für 30 m 6 s . Beide halten ihre Geschwindigkeit während des ganzen Laufes ein. Wie viele Meter vom Ziel entfernt ist Stefanie, wenn Melanie die Ziellinie erreicht?

The resistance, \( R \) newtons, to the motion of a toy car is directly proportional to the square of its speed, \( \mathrm{vm} / \mathrm{s} \). A toy car with speed \( 6 \mathrm{~m} / \mathrm{s} \) experiences a resistance of 9 Newtons. Find the speed of the toy car if it experiences a resistance of 12 Newtons.

2) By saying that the electrostatic field is conservative, we do not mean that All Choices Are Wrong The potential difference between any two points is zero. lts circulation is identically zero. Its curl is identically zero. It is the gradient of a scalar potential.