What is the weight of a rock that has a mass of 7kg?

Which scientist studied physics in europe

Describe a plant / animal in which you can observe wave motion. State the type of wave and describe in relation to body movement

When earths shadow falls on the moon the shadow causes

Dose sugar crystallizes faster in tap or distilled water?

A sample of a material has 200 radioactive particles in it today. Your grandfather measured 400 radioactive particles in it 60 years ago. How many radioactive particles will the sample have 60 years from today?

Sound waves are mechanical waves in which the particles in the medium vibrate ina direction parrallel to the direction of energy transport. What is another name of the type of wave that transfers energy in this way?

A sound from a source has an intensity of 270 db when it is 1 m from the source. what is the intensity of the sound when it is 3 m from the source?

What experimental term is it when a ruler is dropped to the floor?

Where is most of the energy from incoming waves focused? A. spit B. headland C. underwater D. barrier beach

Exoplanets (planets outside our solar system) are an active area of modern research. Suppose you read an article stating that there is a newly discovered planetary system with three planets.