What can be said about the sign of the work done by the force f⃗ 1?

What is the best term to use when describing the energy of position? A) chemical B) kinetic C) potential D) electromagnetic

A spring has a force constant of 1 Ã - 105 n/m. how far must it be stretched for its potential energy to be 47 j? answer in units of m.

Which of the following statements are true? A Simple machines use electricty B Simple machines are made from only one part C Compound machines are made from two or more simple machines D Compound machines make the job harder

A disk with a hole has inner radius rin and outer radius rout. the disk is uniformly charged with total charge q. find an expression for the on-axis electric potential at distance z from the center of the disk

An airplane touches down on the runway with a speed of 70 m/s2. Determine the airplane after each second of its deceleration.

Describe the possible long term impact of a catastrophic event

Calculate the mass defect of the helium nucleus 42He. The mass of neutral 42He is given by MHe=4.002603u.

A transparent film laminated to a fabric is identified in the study material as a. stretch fabric. b. PVC. c. a skin. d. two-faced fabric

Technician A says that all friction and steel plates in a clutch pack should be replaced during and overhaul. Technician B says that the automatic transmission fluid cooler should always be flushed when a unit is rebuilt or replaced.

Cold water (cp = 4180 J/kg·K) leading to a shower enters a thinwalled double-pipe counterflow heat exchanger at 15°C at a rate of 1.25 kg/s and is heated to 60°C by hot water (cp = 4190 J/kg·K) that enters at 100°C at a rate of 4 kg/s.