Category: Physics

Can a cyclic group be infinite? Every cyclic group is virtually cyclic, as is every finite group. An infinite group is virtually cyclic if and only if it is finitely generated and has exactly two ends; an example of such a group is the direct product of Z/nZ and Z, in which the factor Z […]

Can I take a picture of something and you tell me what it is? The Google Goggles app is an image-recognition mobile app that uses visual search technology to identify objects through a mobile device’s camera. Users can take a photo of a physical object, and Google searches and retrieves information about the image. How […]

Is flow rate the same as velocity? Rate of flow, or simply flow, is the quantity of water, for example, that flows in a tube or other medium, in an interval of time. Examples: 2 kg of water per second, or 100 cubric meters of air per minute. Velocity is how fast the water, air […]

What is the equation of the line that passes through 0 2? You can use either (x,y) point you want..the answer will be the same: (1,0). y=mx+b or 0=-2 × 1+b, or solving for b: b=0-(-2)(1). What is an equation of the line that passes through points 0 0 and 5 2 <UNK>? The equation […]

What kind of electromagnetic radiation can be detected by a human body? Infrared radiation is what we like to describe as heat. We can’t see infrared waves, but we can feel them. Your body gives off heat, so it is an emitter of infrared radiation. The range of infrared wavelengths is about sub-millimeters to micrometers […]

Is 10cc equal to 10 ml? 1ml is equal in volume measurement to 1 cc. equal to 1ml= 1 cc or cm3; So, 10 ml is close to 10 cm3 or 10cc. Is 1cc the same as 1 ml? What’s the difference between a cubic centimeter (cc) and milliliter (mL)? These are the same measurement; […]

Which gas is the main cause of greenhouse effect? Carbon Dioxide Why oxygen is not a greenhouse gas? Oxygen and nitrogen are not greenhouse gases, because they are transparent to infrared light. These molecules are invisible because when you stretch one, it doesn’t change the electric field. These are symmetric molecules, made of two identical […]

Which state of water has the lowest density? When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. Solid water, or ice, is less dense than liquid water. Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density. What type […]

What are the four basic principles of germ theory? The four basic principles of Germ Theory The air contains living microorganisms. Microbes can be killed by heating them. Microbes in the air cause decay. Microbes are not evenly distributed in the air. What is Pasteur’s germ theory? In 1861, Pasteur published his germ theory which […]

At what point the velocity of the projectile is maximum and minimum during its flight? Answer. In a Trajectory the projectile would have Minimum velocity at Trajectory point ( At the maximum height ) . & Possess Maximum velocity at initial projection point (due to initial acceleration) & at the point when projectile hits the […]