What is the difference between elastic and inelastic collisions? The whole kinetic energy has been preserved in elastic collision contrasted to inelastic collision where kinetic energy of the bodies in the beginning and end of collision is distinct. Momentum […]
Why are liquids well suited for hydraulics?
Why are liquids well suited for hydraulics? Liquids have low densities. Liquids change volume easily. Liquids have few molecules. Liquids are incompressible. Answer= D. Liquids are incompressible. Because of their incompressibility and rigidity, liquids are ideally suited to hydraulics. They […]
Which of the following statements about a chemical synapse is true?
Which of the following statements about a chemical synapse is true? 1) Signal transmission occurs by diffusion of a compound called a neurotransmitter through the intercellular space between neurons. 2) Calcium ions relay the signal generated by an action […]
What two aspects of a force do scientists measure?
What two aspects of a force do scientists measure? Position and size Magnitude and direction Size and stability Strength and magnitude Answer: – B Magnitude and direction The object’s motion might be altered by force. This may cause the object’s […]
Is air a mixture or a compound? Give three reasons for your answer.
Is air a mixture or a compound? Give three reasons for your answer. For the following reasons, air may be expressed in terms of the mixture: Air can be split into constituents in terms of nitrogen and oxygen. The […]
How is temperature related to the physical change of a substance?
How is temperature related to the physical change of a substance? The material is made up of both elements and compounds. Elements are made up of a single sort of atom, whereas compounds are made up of many atoms. […]
Which properties make a metal a good material to use for electrical wires?
Which properties make a metal a good material to use for electrical wires? A. Malleability and reactivity B. Ductility and malleability C. Reactivity and conductivity D. Conductivity and ductility Answer: – D. Conductivity and ductility Electric wires are a type […]
What is the smallest unit of matter?
What is the smallest unit of matter? As the smallest unit of matter, atoms. Where chemistry has complex rules, atoms and molecules adhere to those principles. They maintain the element’s chemical characteristics. For instance, the gold coin is made […]
What does the atomic number represent?
What does the atomic number represent? Electron number Number of neutrons Number of protons Number of atoms Answer: – C. Number of protons The number of protons present in a given nucleus is indicated by the atomic number. They are […]
What is the exact values of cos 150 and sin 150?
What is the exact values of cos 150 and sin 150? Take Θ=30 Cos 150° If Cos (180° – Θ)= -Cos Θ, Then Cos (180 – 30)= -Cos Θ. Cos 150 = -Cos 30 (√3 /2),= 0.8660 Sin 150° […]
How many thousands are in a Million?
How many thousands are in a Million? To be a million, you need 1000. According to the Indian numbering system, the numbers are made up using the place value system from right to left, as follows: the number of […]
How many sides does a hexagon have?
How many sides does a hexagon have? The design, patterns, and orientation of the shapes sometimes serve as the inspiration for their names. The names of the 2D shapes are described by their sides. In terms of names, the […]