What are the four properties of water? The main properties of water are its polarity, cohesion, adhesion, surface tension, high specific heat, and evaporative cooling. A water molecule is slightly charged on both ends. What are physical and chemical properties of water? We have seen the physical and chemical properties of water and understood its […]
Which physical quantity among the following remains on change when sound wave is reflected from a plane surface?
Which physical quantity among the following remains on change when sound wave is reflected from a plane surface? frequency Which is the following is the requirement for regular reflection of sound? Sound must come back to the person after 0.1 second. For above condition, the reflecting surface must be at a minimum distance of 17.2m. […]
Which gas is the main cause of greenhouse effect?
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?
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 […]
At what point the velocity of the projectile is maximum and minimum during its flight?
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 […]
What is the fastest kick in soccer?
What is the fastest kick in soccer? Fastest Recorded Shots in Football History Ronny Heberson – 211 km/h. Arjen Robben – 190 km/h. Steven Reid -189km/h. Ronald Koeman – 188 km/h. David Hirst – 183 km/h. David Beckham – 158 km/h. Ritchie Humphreys – 154 km/h. Anthony Yeboah – 154 km/h. Who has the fastest […]
Is flow rate the same as velocity?
Is 10cc equal to 10 ml?
How do you know if an appliance is grounded?
How do you know if an appliance is grounded? You can usually tell whether your electrical system is grounded by checking your power outlets. If they accept plugs with three prongs, your system should have three wires, one of which is a grounding wire. Similarly, an appliance designed to be grounded is equipped with a […]
What is the difference between polar and spherical coordinates?
What is the difference between polar and spherical coordinates? Spherical coordinates define the position of a point by three coordinates rho ( ), theta ( ) and phi ( ). is the distance from the origin (similar to in polar coordinates), is the same as the angle in polar coordinates and is the angle between […]