The difference between metal and non-metal in terms of condition is explained below.
Explanation:
B. 3 g/L in weight
C. 15 m/s2
D. 10 km/hr eastward
Velocity of a moving body is its distance covered by time. Thus, it has the unit of m/s, km/hr. etc. . Therefore, among the given options, 25 m/s and 10 km/hr. are represents a velocity.
Velocity is a physical quantity having both direction and magnitude. Thus, it is a vector quantity and it measures the distance covered by an object per unit time.
Velocity is the ratio of distance to the time, hence its units are m/s, km/hr etc. The rate of change in velocity is called acceleration. Thus acceleration is change in velocity by change in time. Thus, its unit is m/s². Hence, 15 m/s² represents acceleration.
The quantity 3 g/L represents the mass per volume and hence it is density of a substance or can be the concentration of a solution. Thus, options A and D are correct.
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Answer:A
Explanation:
It’s A because the velocity is measured in m/s
The described subatomic particle is a neutron, which is electrically neutral and has a mass of approximately 1 atomic mass unit (amu). Neutrons are integral components of atomic nuclei, contributing to nuclear stability and various nuclear processes.
The subatomic particle described is a neutron. Neutrons are one of the fundamental particles that make up the atomic nucleus, along with protons. Neutrons have no electric charge, meaning they are electrically neutral, which is in contrast to positively charged protons and negatively charged electrons.
One of the defining characteristics of neutrons is their mass, which is approximately 1 atomic mass unit (amu). An atomic mass unit is a unit of mass used to express atomic and molecular weights, and it is approximately equal to the mass of a proton or a neutron. More precisely, the mass of a neutron is slightly greater than the mass of a proton, but for most practical purposes, it is considered to be 1 amu.
Neutrons play a crucial role in the stability of atomic nuclei. They help balance the electrostatic repulsion between positively charged protons, holding the nucleus together through the strong nuclear force. Neutrons are involved in various nuclear processes, including nuclear reactions and the production of isotopes in nuclear reactors and particle accelerators.
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