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 relative velocity formula?
What is relative velocity formula? The relative velocity is the velocity that the body A would appear to an observer on the body B and vice versa. Mathematically speaking the relative velocity is the vector difference between the velocities of two bodies. Relative velocity = velocity of the body A – velocity of the body […]
What are the three types of intermodal tanks?
What are the three types of intermodal tanks? Types of Intermodal Containers Dry Freight. The dry freight container is the most common type of shipping container. Flat Rack. Flat rack containers are different from many other shipping containers in that they do not have walls and are not enclosed. Insulated. Refrigerated. Open Top. Custom. What […]
What does a hollow point do to a body?
What does a hollow point do to a body? But what does this have to do with hollow points? Well, it’s simple. Since a hollow-point bullet expands when it enters soft tissue, it creates a larger wound channel inside the target, increasing the chances that incapacitating damage will be done. Can you survive a hollow […]
What are the four properties of water?
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 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 […]
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 […]
Does the 9th planet exist?
Why is the pulley less than 100% efficient?
Why is the pulley less than 100% efficient? It is important to remember that NO pulley system is 100% efficient. This is due to friction of the ropes against the pulley wheels and the friction of the bearings of the pulley wheels as they rotate. This type of pulley arrangement will always have the same […]