If a sound waves frequency is 100Hz. what is its period

A powerful motorcycle can accelerate from rest to 22.2 m/s (80 km/h) in only 3.42 s. What is its average acceleration?

What is the final temperature when 50 g of water at 20°c is mixed with 75 g of water at 60°c

Why momentum is a property of moving objects but not of stationary objects

What is the acceleration rate of an object if the amount of force applied on the object is 75 Newtons and the object has a mass of 15 kilogram?

A science textbook has a mass of 2.2 kilograms. What is it's weight on earth and mars?

If an atom has a mass number of 23, which of the following is always true? The number of protons in the nucleus does not equal the number of neutrons. The atomic number is less than 11. The atom is not an isotope.

What does the law of conservation of energy say

How many elements are in the lanthanide series?

Photon energy is proportional to which of the following. a. speed of light in a vacuum. B frequency of the light emitting the photon. C intensity of the light emmitting the photon. D wavelegnth of light emmitting thr photon.

Each half of earth surface is called