On planet tehar, the free-fall acceleration is the same as that on earth, but there is also a strong downward electric field that is uniform close to the planet's surface. a 1.84-kg ball having a charge of 5.28 μc is thrown upward at a speed of 20.1 m/s. it hits the ground after an interval of 4.10 s. what is the potential difference between the starting point and the top point of the trajectory? (use 9.8 m/s^2 for the acceleration due to gravity.)

The 20@kg wheel has a radius of gyration about its center g of kg = 300 mm. when it is subjected to a couple moment of m = 50 n # m, it rolls without slipping. determine the angular velocity of the wheel after its mass center g has traveled through a distance of sg = 20 m, starting from rest.

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Consider each of the electric- and magnetic-field orientations given next. in each case, what is the direction of propagation of the wave? a)\vec ein the +xdirection,\vec bin the +ydirection. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction b)\vec ein the -y direction,\vec bin the +x choose+ x direction- x direction+ y direction- y direction+ z direction- z direction c)\vec ein the +z direction,\vec bin the -x direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction d)\vec ein the +y direction,\vec bin the -z direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction