How are sedimentary rock layers used by scientist to learn about the past

Which best describes loudness? A) the subjective measurement of the intensity of sound B) the subjective measurement of the wavelength of a sound wave C) an inherent measurement of the intensity of sound D) an inherent measurement of the wavelength

A particle that has a charge of 7.4 μC moves with a velocity of magnitude 3 * 105 m/s along the + x axis. It experiences no magnetic force, although there is a magnetic field present.

When aluminum-27 is bombarded with a neutron, a gamma ray is emitted. what radioactive isotope is produced?

What is a pseudopods

Explaining how caring capacity influences the number of organisms.

One of the main reasons steel is used more widely than iron is because it's lighter softer stronger than iron

What is the frequency of a wave with a velocity of 21.2 m/s and a wavelength of 8.3m?

Positive ions have blank protons than electrons

What is the weight, in n, of an object with a mass of 200 kg at a location where g = 9.6 m/s2. round the final answer to the nearest whole number?

A 1.7 kg book is lying on a 0.77 m - high table. You pick it up and place it on a bookshelf 2.0 m above the floor. how much work does gravity do on the book?