Astronomers have proposed the existence of an unexplained force that is causing the expansion of the universe to accelerate. What do they call this force?

dark matter

dark space

dark stars

dark energy

dark holes

A normal walking speed is around 2.0 m/s. how much time t does it take the box to reach this speed if it has the acceleration 5.54 m/s2 that you calculated above?

For the energy function V (x) = cos (x) for - [infinity] ≤x≤ + [infinity], find the values x=xsthat identify stable equilibria, and the values x = xuthat identify unstable equilibria.

How does increasing the tension of a spring affect a wave on the spring?

The maximum current output of a 60 Ω circuit is 11 A. What is the rms voltage of the circuit?

How can I feel pain when I hit a table with my bare hands (Physics)

In a laboratory, you determine that the density of a certain solid is 5.23*10-6kg/mm3. Convert this density into kilograms per cubic meters.

List the solar objects in correct order from the Sun. Venus Earth Mercury Saturn Neptune Mars Jupiter Asteroid Belt The Sun Uranus

The power exerted by a muscle is the product of the force exerted and the velocity of contraction. The area of which of these shaded regions represents the power exerted while a weight is lifted at maximum speed?

How can you tell one element from another?

Which of the following is not an accurate statement about the attitude of teenagers when driving