Category: Physics

What kind of energy is released when something makes a noise? Sound energy is produced when an object vibrates. The sound vibrations cause waves of pressure that travel through a medium, such as air, water, wood or metal. Sound energy is a form of mechanical energy. How does the noise affect communication? It can have […]

Did they have fridges in 1920? Refrigerator. The history of the Refrigerator began in the 1920. In the 1920s and ’30s, consumers were introduced to freezers when the first electric refrigerators with ice cube compartments came on the market. Before the invention of the refrigerator’s people used Ice boxes. What were the social effects of […]

How do you adjust the valves on a h22? To begin, loosen the nut that sits on top of the valve with your special valve-adjustment tool. Start on the exhaust side to ensure consistency. Once the nut is loose, slide your feeler gauge between the base of the cam and the rocker, the aim being […]

How much is 70 kg on the moon? For example on earth a 70kg person would weigh 686N (70kg x 9.8 ) whereas on the moon, where the gravitational acceleration is about 1.62 , that same 70kg person would weigh 113N. This means on a pair of scales calibrated for earth they would measure 11.5kg. […]

What is the role of bellboy in hotel? BELL BOY DUTIES AND RESPONSIBILITIES: Ensure collection and delivery of guest luggage and equipment in an efficient and timely manner. Tag baggages it and return the identification slips to guests. Assists guests with luggage to the front desk. Escorts guests to room, placing luggage in room assigned […]

What is the difference between a subtractive color and additive color? Additive colors are created by adding colored light to black. On the other hand, subtractive colors are created by completely or partially absorbing (or subtracting) some light wavelengths and reflecting others. Subtractive colors begin as white. What is the difference between additive primaries and […]

What does P stand for in music? The main dynamic levels are: p or piano, which means “soft” f or forte, which means “loud” What does P in circle mean? phonographic copyright symbol What does P symbol mean in music? phonogram What is a P line? P Line: In copyright law, the P Line is […]

Can I build my credit by being an authorized user on a credit card? Being added as an authorized user on another person’s card may help you establish a credit history or build your credit. Yet cardholders and authorized users’ on-time, late or missed payments will be added to both parties’ credit reports, so it’s […]

What made the Spartans so strong? Meanwhile, agriculture and food production fell to the enslaved Helots, a servile class that made up the majority of Sparta’s population. Ironically, constant fear of Helot revolts and uprisings was a major reason why the Spartan elite became so devoted to building a strong military in the first place. […]

Why is my 16 year old daughter so angry? Some Teen Anger Is Normal During adolescence, a measure of increased moodiness is normal. Hormones flare during puberty and adolescence, so teens react to triggers and process emotions in different ways than during their early years. How do you calm down an angry teenager? Strategies to […]