2 A potential energy function for a system in which a two-dimensional force acts is of the form: U=7x?y - 3x y Find the ... 查看全部
is the answer = zero ? how ?QUESTION 1 A very long line of charge density - 7.01 nC/m is placed at a distance b=1,62 cm ... 查看全部
SUVI- Witt has a length of 3.82mmandeur eer of 12.07 QUESTION 3 In the shown circuit the electromotive force of the batt... 查看全部
Calculate the bed height pressure of a material caused by 25kgof material stacked above itself in a cylindrical hopper w... 查看全部
QUESTION 3 A very long line of charge density A=7.52 nC/m is placed at a distance b=1.38 cm next to an empty-of-charge c... 查看全部
QUESTION 4 In the shown circuit, the electromotive force of the battery is 10.0 V. Find the value of the the resistor R ... 查看全部
QUESTIONS What is the resistance (in mo) across a cylindrical piece of gold (resistivity -0.022 po.m) that has a length ... 查看全部
A ball is kicked with an initial velocity of 12 m/s in thehorizontal direction and 18 m/s in the vertical direction. (As... 查看全部
QUESTION 6 Four equal point charges of q= 7.08 nC are placed at equal distances of a=2.72 cm from the origin, as shown i... 查看全部
Determine the elongation (in meters) of the whole rod in the figure below if it is under a tension of 4.5x103 N. The rad... 查看全部