The smallest unit that makes up matter is an atom!
Answer:
Assuming the given radius is 10⁶ km, the radius of the second planet is 1.31 * 10⁶ km.
Explanation:
Newton's law of gravity:
(1)
Centripetal force:
(2)
On a circular orbit both forces must be equal:
(3)
Solving for ω:
(4)
The period T is given by:
(5)
Taking the ratio of two periods:
(6)
Solving for r₁:
(7)
Answer:
They developed a test for poisons in the human tissues
Explanation:
Around the 19th century, Mathieu Orfila and Robert Christison developed important tests that identified poisons in human tissues.
By so doing, they laid the foundation for what is now called forensic toxicology. This science attempts to identify poisons in human tissues especially by way of autopsies and forensic investigation.
Today forensic toxicology has expanded to include alcohol testing techniques as well as testing athletes for intake of performance enhancing substances.
Answer:
215.6Nm
Explanation:
The figure below shows a 10-kg mass hung from the end of a rod that is 2.2 m in length. Find the magnitude of the torque produced by the hung mass (m)
Torque = Force × radius
Torque = mg × radius
Torque = 10(9.8) × 2.2
Torque = 98 × 2.2
Torque = 215.6Nm
Answer:
THE GROUND IS THE MEDIUM OF SEISMIC WAVES