Which evidence best supports the theory that the universe began with a massive explosion?

A - cosmic background radiation in space

B - parallelism of planetary space

C - radioactive dating of Earth's bedrock

D - life cycle of stars

an ideal gas system undergoes an adiabatic process in which it expands and does 20 J of work on its environment. how much energy is transferred into the system as heat

Select all of the answers that apply. Which of the following are beneficial products of volcanic activity? A. The Hawaiian Islands B. Fertile Soil C. Geothermal Energy D. Ring of Heat

A wire of resistance 6.2 Ω is connected to a battery whose emf ε is 6.0 V and whose internal resistance is 0.45 Ω. In 2.

Albert Einstein first hypothesized that a large object, such as a planet, bends the space around it. This hypothesis became part of the theory of relativity, which is about how objects affect the space and time around them.

How is work calculated when the force applied is not parallel to the displacement

How might temperature near ocean compare with those in land in winter? In summer

What is not the purpose of peer review in science? to validate conclusions to conduct secret research to check the accuracy of data to obtain feedback from other scientists

What is an example of 'Centre of Gravity'?

The Mass number of an element is the? A. number of protons plus electrons B. number of protons only C. number of protons plus neutrons

Momentum of a system is conserved only when question 16 options: there are no internal forces acting on the system. the system is not moving. there are no forces acting on the system. there is no net external force acting on the system.