皮皮学，免费搜题
登录
搜题
【多选题】
如图所示,倾角为 θ 的平行金属导轨宽度为 L ,电阻不计,底端接有阻值为 R 的电阻,处在与导轨平面垂直向上的磁感应强度为 B 的匀强磁场中.有一质量为 m 、长也为 L 的导体棒始终与导轨垂直且接触良好,导体棒的电阻为 r ,它与导轨之间的动摩擦因数为 μ ,现让导体棒从导轨底部以平行于斜面的速度 v 0 向上滑行,上滑的最大距离为 s ,端的速度为 v ,下列说法正确的是 ( )
A.
把运动导体棒视为电源，其最大输出功率为
B.
导体棒从开始到滑到最大高度的过程所用时间为
C.
整个过程产生的焦耳热为
D.
导体棒上下滑过程中，电阻 R 产生的焦耳热相等
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【单选题】I have lost dangerous goods of IMO-Class VII in position 23°N,126°E
A.
The vessel has lost a cargo of flammable liquids
B.
The vessel has lost a cargo of explosives
C.
The vessel has lost a cargo of corrosives
D.
The vessel has lost a cargo of radioactive materials
查看完整题目与答案
【单选题】I have lost dangerous goods of IMO-Class I in position 23°N,126°E
A.
The vessel has lost a cargo of flammable liquids
B.
The vessel has lost a cargo of explosives
C.
The vessel has lost a cargo of corrosives
D.
The vessel has lost a cargo of radioactive materials
查看完整题目与答案
【单选题】Without a(n) liberal supply of necessary equipment and materials, the mountain-climbers would not have been able to scale the heights and reach the top in such bad weather.
A.
lenient
B.
free
C.
casual
D.
abundant
查看完整题目与答案
【单选题】I have lost dangerous goods of IMO-Class VIII in position 23°N,126°E
A.
The vessel has lost a cargo of flammable liquids
B.
The vessel has lost a cargo of explosives
C.
The vessel has lost a cargo of corrosives
D.
The vessel has lost a cargo of radioactive materials
查看完整题目与答案
【单选题】电阻是如何阻碍电流上升的?
A.
依靠阻断电流
B.
依靠产生与电动势相反的电压
查看完整题目与答案
【单选题】蚊于黄昏群舞是与哪种习性有关:( )
A.
觅食
B.
消化胃内血液
C.
交配
D.
寻找产卵场所
E.
传播病原体
查看完整题目与答案
【单选题】Admissions Notice John Washington, We have (150) your completed application form. and all necessary documents and materials and other sources. A preliminary check of the material indicates that you ar...
A.
receives
B.
receiving
C.
receive
D.
received
查看完整题目与答案
【单选题】I have lost dangerous goods of IMO-Class III in position 23°N,126°E
A.
The vessel has lost a cargo of flammable liquids
B.
The vessel has lost a cargo of explosives
C.
The vessel has lost a cargo of corrosives
D.
The vessel has lost a cargo of radioactive materials
查看完整题目与答案
【简答题】电阻是反应阻碍导电的能力;电阻越大,溶液的电导
查看完整题目与答案
【简答题】II. Translate the following passage into Chinese. I n response to the activities of media consumers who obtain their content through peer-to-peer file sharing and other means not involving a tradition...
查看完整题目与答案
相关题目：
【单选题】I have lost dangerous goods of IMO-Class VII in position 23°N,126°E
A.
The vessel has lost a cargo of flammable liquids
B.
The vessel has lost a cargo of explosives
C.
The vessel has lost a cargo of corrosives
D.
The vessel has lost a cargo of radioactive materials
查看完整题目与答案
【单选题】I have lost dangerous goods of IMO-Class I in position 23°N,126°E
A.
The vessel has lost a cargo of flammable liquids
B.
The vessel has lost a cargo of explosives
C.
The vessel has lost a cargo of corrosives
D.
The vessel has lost a cargo of radioactive materials
查看完整题目与答案
【单选题】Without a(n) liberal supply of necessary equipment and materials, the mountain-climbers would not have been able to scale the heights and reach the top in such bad weather.
A.
lenient
B.
free
C.
casual
D.
abundant
查看完整题目与答案
【单选题】I have lost dangerous goods of IMO-Class VIII in position 23°N,126°E
A.
The vessel has lost a cargo of flammable liquids
B.
The vessel has lost a cargo of explosives
C.
The vessel has lost a cargo of corrosives
D.
The vessel has lost a cargo of radioactive materials
查看完整题目与答案
【单选题】电阻是如何阻碍电流上升的?
A.
依靠阻断电流
B.
依靠产生与电动势相反的电压
查看完整题目与答案
【单选题】蚊于黄昏群舞是与哪种习性有关:( )
A.
觅食
B.
消化胃内血液
C.
交配
D.
寻找产卵场所
E.
传播病原体
查看完整题目与答案
【单选题】Admissions Notice John Washington, We have (150) your completed application form. and all necessary documents and materials and other sources. A preliminary check of the material indicates that you ar...
A.
receives
B.
receiving
C.
receive
D.
received
查看完整题目与答案
【单选题】I have lost dangerous goods of IMO-Class III in position 23°N,126°E
A.
The vessel has lost a cargo of flammable liquids
B.
The vessel has lost a cargo of explosives
C.
The vessel has lost a cargo of corrosives
D.
The vessel has lost a cargo of radioactive materials
查看完整题目与答案
【简答题】电阻是反应阻碍导电的能力;电阻越大,溶液的电导
查看完整题目与答案
【简答题】II. Translate the following passage into Chinese. I n response to the activities of media consumers who obtain their content through peer-to-peer file sharing and other means not involving a tradition...
查看完整题目与答案