A pumkin is dropped, after 5 seconds, its velocity is 47 m/s. What is its acceleration?

(formula for acceleration:

1. A 12 kg barrel is pulled up by a rope. The barrel accelerates at 1.2 m/s2. Find the force exerted by the rope. Show all your work.

Which of the following IS NOT a part of an electromagnet? Electricity source Metallic core Coiled wire Paper clips

The word oogenesis refers to

Metals are good conductors of electric current for which of the following reasons? They possess high concentrations of protonsThey possess low concentrations of protonsThey possess high concentrations of free electronsThey possess low concentrations

What is inside of an inflated ball? A. matter B. energy C. nothing

Which of the following factors will negatively impact the rate of diffusion of a molecule? A short distance between two concentrations of the molecule A low difference in the concentration of the molecule across the media A warm environment

A sound wave has a frequency of 1,395 Hertz. All sound waves in air travel at 343 m/s. Find the wavelength of the sound wave. what's the answer?

Which factor will affect the light-gathering power of a telescope? A. change in the focal length B. change in the diameter of the objective C. change in the angle of the objective D. change in the elevation of the telescope E.

What is the acceleration of a 30.0-kg go kart if the thrust of its engine is 300.0 N?

Which of the following correctly compares a scientific investigation to a demonstration