Radio telescopes measure the galaxy’s distribution of

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?

Acapacitor is storing energy of 3 joules with a voltage of 50 volts across its terminals. a second identical capacitor of the same value is storing energy of 1 joule. what is the voltage across the terminals of the second capacitor?

If 150 kcal of heat raises the temperature of 2.0 kg of a material by 400 f°, what is the specific heat capacity of the material? 0.75 kcal/kg ∙ c° 1.35 kcal/kg ∙ c° 0.19 kcal/kg ∙ c° 0.34 kcal/kg ∙ c°