Which could accept a hydrogen bond? The nitrogen atom is called the hydrogen bond acceptor, because it is “accepting” the hydrogen from the oxygen. In the picture of two water molecules at lower right, the oxygen of the water molecule B is the hydrogen bond donor. The oxygen of water molecule A is the hydrogen […]
Why do objects transfer heat?
Why do objects transfer heat? All matter contains heat energy. Heat energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases. The transfer or flow due to the difference in temperature between the two objects is called heat. How is heat different from temp? Heat […]
What are waves in everyday life examples?
What are waves in everyday life examples? Transverse waves ripples on the surface of water. vibrations in a guitar string. a Mexican wave in a sports stadium. electromagnetic waves – eg light waves, microwaves, radio waves. seismic S-waves. Do phones really fry your brain? Mobile phones release radiofrequency energy, or radio waves, that can be […]
How can I make my PowerPoint presentation attractive and easy to understand the content?
How can I make my PowerPoint presentation attractive and easy to understand the content? Design and Graphical Images Use design templates. Standardize position, colors, and styles. Include only necessary information. Limit the information to essentials. Content should be self-evident. Use colors that contrast and compliment. Too may slides can lose your audience. Keep the background […]
Is ammonium hydroxide harmful to humans?
Is ammonium hydroxide harmful to humans? contact can severely irritate and burn the skin and eyes leading to eye damage. ► Exposure can irritate the eyes, nose and throat. ► Inhaling Ammonium Hydroxide can irritate the lungs. Higher exposures may cause a build-up of fluid in the lungs (pulmonary edema), a medical emergency. Is ammonium […]
What are the 2 types of operating system?
What are the 2 types of operating system? What are the types of an Operating System? Batch Operating System. In a Batch Operating System, the similar jobs are grouped together into batches with the help of some operator and these batches are executed one by one. Time-Sharing Operating System. Distributed Operating System. Embedded Operating System. […]
What is the role of thin film interference?
What is the role of thin film interference? Thin-film interference explains the multiple colors seen in light reflected from soap bubbles and oil films on water. It is also the mechanism behind the action of antireflection coatings used on glasses and camera lenses. Why does the pattern of colors repeat in a thin soap film? […]
What is 4 2He called?
What is 4 2He called? 4/2He or the alpha particle that consists of two protons and two neutrons can be discharged from the nucleus during the disintegration of radioactive decay. What is the equation for radioactive decay? The law of radioactive decay describes the statistical behavior of a large number of nuclides, rather than individual […]
What are the 3 stages of a cool down?
What are the 3 stages of a cool down? There are three primary phases in the cool down period: 1: Immediate Phase. The immediate phase occurs right after the run, when the heart rate is still elevated and muscles are fatigued. 2: Intermediate Phase. 3: Late Phase. How do you feel after cooling down? Stopping […]
Are work and impulse the same?
Are work and impulse the same? Impulse is a vector, so a negative impulse means the net force is in the negative direction. Likewise, a positive impulse means the net force is in the positive direction….Common mistakes and misconceptions. Impulse Work Changes an object’s momentum energy Quantity type vector scalar What does kW mean in […]