作业帮求翻译啊求翻译，英文版物理题
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求翻译啊求翻译，英文版物理题
8.A long thin wire ,hundreds of meterslong,carries a uniformly distributed charge of -2.8uC per meter oflength.What are the magnitude and direction of the electric field at point(a)5.0m and (b)2.0m from the wire?
9.A point charge of 3.5nC is located at theorigin and a second charge of -5.0nC is located on the x axis at x=1.5m .Calculate the electric flux through a sphere centered at theorigin with radius 1.00m .Repeat the calculation for a sphere of radius 2.00m .
10.A spherical cavity of radius 4.50 cm is at the center of a metal sphere of radius 18.0 cm.A point charge Q=5.50uC rests at the verycenter of the cavity,whereas the metal conductor carries no netcharge.Determine the electric field at a point(a)3.0 cm from the center of the cavity and (b)6.0 cm from the center of the cavity.
11.Amotorboat whose speed in still water is 3.70m/s must aim upstream at an angle of the 29.5°
(with respect to a line perpendicular to the shore) in orderto travel directly across the stream.(a)What is the speed of the water?(b)Whatis the resultant speed of the boat with respect to the shore?
8.A long thin wire ,hundreds of meterslong,carries a uniformly distributed charge of -2.8uC per meter oflength.What are the magnitude and direction of the electric field at point(a)5.0m and (b)2.0m from the wire?
9.A point charge of 3.5nC is located at theorigin and a second charge of -5.0nC is located on the x axis at x=1.5m .Calculate the electric flux through a sphere centered at theorigin with radius 1.00m .Repeat the calculation for a sphere of radius 2.00m .
10.A spherical cavity of radius 4.50 cm is at the center of a metal sphere of radius 18.0 cm.A point charge Q=5.50uC rests at the verycenter of the cavity,whereas the metal conductor carries no netcharge.Determine the electric field at a point(a)3.0 cm from the center of the cavity and (b)6.0 cm from the center of the cavity.
11.Amotorboat whose speed in still water is 3.70m/s must aim upstream at an angle of the 29.5°
(with respect to a line perpendicular to the shore) in orderto travel directly across the stream.(a)What is the speed of the water?(b)Whatis the resultant speed of the boat with respect to the shore?
8。一个长薄丝，几百米，进行均匀分布的电荷的-2.8uc每米长度。什么是大小和方向的电场在点（a）5.0m和（B）2.0m线？
9.A point charge of 3.5nC is located at theorigin and a second charge of -5.0nC is located on the x axis at x=1.5m .Calculate the electric flux through a sphere centered at theorigin with radius 1.00m .Repeat the calculation for a sphere of radius 2.00m .
9。点电荷3.5nc是位于起源和第二电荷-5.0nc位于X轴在x = 150万。计算电通量通过球体中心半径1.00m起源。球体半径2.00m重复计算。
10.A spherical cavity of radius 4.50 cm is at the center of a metal sphere of radius 18.0 cm.A point charge Q=5.50uC rests at the verycenter of the cavity,whereas the metal conductor carries no netcharge.Determine the electric field at a point
10。球形空腔的半径为4.5厘米是在一个金属球体的半径为18.0厘米的中心。一个点电荷Q = 5.50uc休息在verycenter腔，而金属导体进行无netcharge。确定在一个点的电场
(a)3.0 cm from the center of the cavity and (b)6.0 cm from the center of the cavity.
（一）3厘米，从中心的空腔和（乙）6厘米从中心的空腔。
11.Amotorboat whose speed in still water is 3.70m/s must aim upstream at an angle of the 29.5° (with respect to a line perpendicular to the shore) in orderto travel directly across the stream.
11。amotorboat的速度还有水3.70m/s必须瞄准上游在29.5°角（相对于垂直于海岸线），旅游直接越过小溪。
(a)What is the speed of the water?(b)Whatis the resultant speed of the boat with respect to the shore?
（一）水的速度是多少？（b）是相对于岸边的船的合速度？
9.A point charge of 3.5nC is located at theorigin and a second charge of -5.0nC is located on the x axis at x=1.5m .Calculate the electric flux through a sphere centered at theorigin with radius 1.00m .Repeat the calculation for a sphere of radius 2.00m .
9。点电荷3.5nc是位于起源和第二电荷-5.0nc位于X轴在x = 150万。计算电通量通过球体中心半径1.00m起源。球体半径2.00m重复计算。
10.A spherical cavity of radius 4.50 cm is at the center of a metal sphere of radius 18.0 cm.A point charge Q=5.50uC rests at the verycenter of the cavity,whereas the metal conductor carries no netcharge.Determine the electric field at a point
10。球形空腔的半径为4.5厘米是在一个金属球体的半径为18.0厘米的中心。一个点电荷Q = 5.50uc休息在verycenter腔，而金属导体进行无netcharge。确定在一个点的电场
(a)3.0 cm from the center of the cavity and (b)6.0 cm from the center of the cavity.
（一）3厘米，从中心的空腔和（乙）6厘米从中心的空腔。
11.Amotorboat whose speed in still water is 3.70m/s must aim upstream at an angle of the 29.5° (with respect to a line perpendicular to the shore) in orderto travel directly across the stream.
11。amotorboat的速度还有水3.70m/s必须瞄准上游在29.5°角（相对于垂直于海岸线），旅游直接越过小溪。
(a)What is the speed of the water?(b)Whatis the resultant speed of the boat with respect to the shore?
（一）水的速度是多少？（b）是相对于岸边的船的合速度？