Consider a thin rod of total charge Q and length L. The electric potential at point P, a distance x from the end of the rod, is given by V(x) = kQ L ln x + L x . Use this equation to find the electric field at a distance x from the end of the charged rod. (Enter the magnitude. Use the following as necessary: k, Q, x, and L.)

Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

Iwill give 30 points to whoever answers ! what is the formula for actual mechanical advantage and ideal mechanical advantage?