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Science Clinic => Physics => Topic started by: arivle123 on Jul 29, 2018

Title: One difference between moving charges and stationary charges is that A) moving charges exert both ...
Post by: arivle123 on Jul 29, 2018

One difference between moving charges and stationary charges is that
 
  A) moving charges exert both electric and magnetic forces, while stationary charges exert neither electric nor magnetic forces.
  B) moving charges exert only magnetic forces, while stationary charges exert both electric and magnetic forces.
  C) moving charges exert both electric and magnetic forces, while stationary charges exert only electric forces.
  D) moving charges exert only magnetic forces, while stationary charges exert only electric forces.
  E) moving charges stay slender, while stationary charges are couch potatoes.

Question 2

A 1000-kg barge is being towed by means of two horizontal cables. One cable is pulling with a force of 80.0 N in a direction 30.0 west of north.
 
  In what direction should the second cable pull so that the barge will accelerate northward, if the force exerted by the cable is 120 N? Assume that the water exerts no appreciable frictional drag on the barge.
  A) 47.5 east of north
  B) 19.5 east of north
  C) 39.0 east of north
  D) 21.1 east of north
  E) 54.7 east of north

Title: One difference between moving charges and stationary charges is that A) moving charges exert both ...
Post by: jonathanballen97 on Jul 29, 2018

Answer to Question 1

C

Answer to Question 2

B

Title: One difference between moving charges and stationary charges is that A) moving charges exert both ...
Post by: arivle123 on Jul 29, 2018

Thank you!

Title: One difference between moving charges and stationary charges is that A) moving charges exert both ...
Post by: jonathanballen97 on Jul 29, 2018

Always glad to help...