if a star 100 light years from earth is beginning to expand into a giant star how long will it take for astronomers to observe this development explain

At what distance above the surface of the earth is the acceleration due to the earth's gravity 0.785 m/s2 if the acceleration due to gravity at the surface has magnitude 9.80m/s2?

What will happen when the universe stops expanding?

How do you find the volume of a rock

What part of the Greek model of the atom has been set aside by current scientific knowledge

Distance travelled can be found from the A area under a velocity-time graph B area under an acceleration-time graph C gradient of a force-time graph D gradient of a velocity-time graph

If objects A and B are separately in thermal equilibrium with a third object C, then A and B are in thermal equilibrium with each other. This law is called a. First law of thermodynamics b. Zeroth law of thermodynamic c. Second law of thermodynamics

Physical science unit 4 lesson 10

Your shopping cart has mass of 65 kg. In order of accelerate the shopping cart down an aisle at 0.3 m/sec^2, what force would you need to use or apply to the cart?

What are the requirements of a practical fuel

A woman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. The book has a mass of m = 1.7 kg and the coefficient of static friction between her hand and the book is μs = 0.52.