資訊推薦

• 9. (20%) Compute the de Broglie wavelength of the following.【題組】(a) (5%) A 20-g bullet traveling at
• 【題組】(b) (5%) An electron moving at 105 m/s.
• 【題組】(c) (5%) An electron with a kinetic energy of 100 eV, which is much less than the rest energy
• 【題組】28 承上題，在 t＞T 時，此電壓源傳送的瞬時功率 P2(t)又是多少？(A)〔V22(t-T)〕∕ L (B)(V2T) ∕ L (C)｛〔V2(t-T)〕∕ L｝+〔(V1T) ∕ L〕
• 29 電阻、電流、電壓、時間、電荷的符號分別以 R、I、V、t、q 表示，下列何者不是電功率的表示？(A) I2R (B) VI (C) qV (D) V2/R
• 30 兩電極之間以空氣為介質，已知空氣之介質強度為 3 kV/mm，兩電極之距離為 0.8 公分，則不會導致絕緣破壞的最高電壓為多少千伏特？ (A) 18 (B) 24 (C) 30 (D) 32
• 31 若將複數 A=5 - j5 √3 轉換為對應之極座標，下列何者正確？(A) 10∠ 60° (B) 10∠ -60° (C) 5∠ 60° (D) 5∠ -60°
• 2. Gestures that we use on a daily basis to portray positive emotion or agreement might mean somethi
• 3. Tens of thousands of furious females assembled outside the mayor's office, screaming in prot
• 4. That more and more pedestrians tend to wear wireless earbuds while crossing the roads actually pu
• 5. This year's election is indeed an_________.， record-breaking one, as the outgoing president
• 6. While social media is a great way to socialize with friends and family, it can also be a_________
• 7. Professor Fitzgerald, who specializes in quantum physics, is_________ productive, publishing at l
• 8. Mr. Jacob has a_________ for spotting good investments and a reputation for being bold and vision
• 9. In an attempt to _________his opponent, the tennis player used performance-enhancing drugs before
• 10. As climate change continues to drastically affect ecosystems, the future of biodiversity looks__
• 11. With _________information on the official website, Miss Kylie decided to make a call to the bout
• 12. Gardening_________a moderate intensity level activity and can also contribute to the WorldHealth
• 13. Uji is a city on the southern outskirts of Kyoto, and its matcha is_________ among the best in t
• 14. Much _________her disappointment, Erika did not make the shortist for the annual Chef of the Yea
• 15. An Instagram influencer _________account has over 5 million foliowers was accused of spreadingfa
• 16. Over 500 flowering plants in the Taipei Botanical Garden are in bloom, _________of viola and cam
• 17. Some students plan to start their own business after graduation；_________ would like to pursuefu
• 18. The mayor listened to the survivors of a recent caving accident with tears_________ down her che
• 19._________not passing the bar exam, Jamie will never give up her dream of becoming a civillitigati