Ventilators are installed near the ceiling of the room because the exhaled hot air rises up and goes out. Hot air, being less dense, naturally ascends towards the ceiling. Placing ventilators there allows for the efficient removal of this hot ...
Tiwari Academy Discussion Latest Questions
When soap is dissolved in water, the surface tension decreases. Soap molecules contain both hydrophilic and hydrophobic parts. The hydrophobic tails disrupt the cohesive forces between water molecules at the surface, reducing surface tension.
When detergent is added to pure water, the surface tension decreases. Detergent molecules disrupt the cohesive forces between water molecules at the surface, reducing the surface tension. This allows the detergent solution to spread more easily and penetrate surfaces, enhancing ...
A person at rest in the middle of a horizontal plane of perfectly smooth ice can bring themselves to the shore by using the first law of motion. This law states that an object at rest will remain at rest ...
Since the car maintains a constant velocity, there’s no additional force acting on the ball while it’s airborne. Therefore, the ball travels vertically upward after being thrown and then falls straight back down relative to the car’s frame of reference. ...
The synchronizing satellite rotates around the Earth in a West to East direction. This rotation synchronizes with the Earth’s rotation, facilitating stable positioning relative to a point on the Earth’s surface. This alignment is essential for functions such as communication ...
The function of the ball bearing in the wheel is to convert static friction into kinetic friction. This conversion allows for smoother rotation by reducing resistance between moving parts. Ball bearings facilitate efficient motion and are crucial components in various ...
The water level remains the same when the ice cube melts. This is because a floating object displaces an amount of water equal to its own weight. Since water expands when it freezes, the volume of the melted ice cube ...
In a state of weightlessness, the shape of a candle flame will be spherical. Without the influence of gravity, convection currents do not form, causing the flame to become spherical as it is no longer pulled upwards. This phenomenon is ...
The liquid rises to a higher height than water in a capillary tube because the surface tension of the liquid is higher than that of water. This stronger surface tension pulls the liquid upward, resulting in a greater capillary rise ...