An object contains 4.9*10^7 excess electrons. What is its net charge?

Pamela drove her car 999999 kilometers and used 999 liters of fuel. she wants to know how many kilometers (k) (k) left parenthesis, k, right parenthesis she can drive with 121212 liters of fuel.

In the diagram, the solid eventually becomes a gas. what will happen to bring the substance from a solid to a gas?

If we see a supernova of a star that is 25 light years away from us, we know it exploded 25 years ago. True False

A primary coil consists of 10 loops, while the secondary coil consists of 20 loops. If the output or secondary voltage is 120 V, what was the voltage across the primary coil? 240 V 60 V 6 V 20 V

When fertilized what will the ovary grow into on a flower

A scientist pours grape juice on three identical white shirts He then uses three different cleaning products on the shirts and measures how clean they get what is the independent variable in this experiment

What part of the atom does nuclear radiation come from?

Why should scientists write reports and give oral presentations of the steps and results of their in investigations?

Which of these rocks are formed by volcanic activity? select the two correct answers. a. marble b. basalt c. limestone d. granite e. sandstone

Which source is most likely an authority on the subject? Dr. Vale, a pediatrician, discusses electrical circuitry on her home-improvement website. Jonah, an amateur cook, teaches his son how to make the best grilled cheese sandwiches.