Answer:
yes I do
Explanation:
and is that the answer you were looking for because I am very dumb so I really don't know
The initial speed doesn’t matter. To reach the maximum height, you need to launch straight up ... 90 degrees above horizontal.
Momentum can be explained by a game of pool. A ball which is hit by the rod moves with certain mass and certain velocity. That ball hits another one and makes it move, also. So by giving it acceleration, a transfer of momentum is made.
Answer:
Look below.
Explanation:
1.) The resistance of a light bulb filament is effected by both length and cross-sectional area. Thicker wires have less resistance. A 120-Watt bulb has a greater current and a smaller resistance. Thus, a 120-Watt bulb must have a thicker filament than a 60-Watt bulb (assuming the lengths of the filaments are identical). We also think of lightbulbs in terms of their power ratings in watts. Let us compare a 25-W bulb with a 60-W bulb. Since both operate on the same voltage, the 60-W bulb must draw more current to have a greater power rating. Thus the 60-W bulb’s resistance must be lower than that of a 25-W bulb. If we increase voltage, we also increase power. For example, when a 25-W bulb that is designed to operate on 120 V is connected to 240 V, it briefly glows very brightly and then burns out. Precisely how are voltage, current, and resistance related to electric power?
2.) Energy transferred = 120 × 2 = 240 J. This equation can be rearranged to V = E ÷ Q. So voltage is energy transferred divided by charge.
3.) Power= Voltage × Current
4.) W=Pt
Glass will be colder than plastic when you touch it...that's why glass need less heat in order to raise it's temperature...scratching or just by tapping it with finger nail you will know by the sound what it is...
