What is the advantage of adding more pulleys to a system of pulleys?

Fossils allow scientists to determine when and for how long a certain species lived. What can scientists deduce from this discovery? A. earth's life has changed over time B. which fossils are heavier C. the food sources that were available D.

How much power does it take to do 500J of work in 10 sec

Does the moon Triton have a magnetic field?

If forces acting on an object are unbalanced, the object could experience a change in

Match each orbiting body to its attribute. Asteroid Gas Giant Comet Meteorid has a characteristic glow usually burns up if it enters Earth's atmosphere primarily made of hydrogen and helium varies greatly in size from one to the next

Consider two cars, a 700kg Porsche and a 600kg Honda Civic. The Porsche is speeding along at 40 m/s (mph) and the Civic is going half the speed at 20 m/s.

Which statement about an electron in the 4d state is correct? A. The magnitude of its orbital angular momentum is 6√ℏ. B. The largest orbital angular momentum it could have in any given direction is 4ℏ. C.

A D note has a frequency of 587.33 Hz. Calculate its wavelength in meters. The speed of sound is 343 m/s

A cyclist allows his bike to roll down a hill without pedaling. Towards the bottom of the hill he applies his brakes. The bike comes to a stop. Applying the brakes causes the brakes to warm up. Describe the energy transfers that have occurred.

An object is placed in a fluid and then released. Assume that the object either floats to the surface (settling so that the object is partly above and partly below the fluid surface) or sinks to the bottom.