Physics

    Physics
    In a refrigerator, the cooling system should always be
    The compressor is the motor (or engine) of the cooling system. It is normally at the bottom of the refrigerator in the back. The compressor runs whenever the refrigerator thermostat calls for cooling.
    Physics
    The swing of a spinning cricket ball in air can be explained on the basis of
    The main theory of swing bowling surrounded turbulent and laminar airflow. Laminar air separates from the surface of the ball earlier than turbulent flow air, so that the separation point moves toward the front of the ball on the laminar side. On the turbulent flow side it remains towards the back; inducing a greater lift force on the turbulent airflow side of the ball. The calculated net lift force is not enough to account for the amount of swing observed: Additional force is provided by the pressure-gradient force.
    Physics
    The composition of electrician solder is
    The composition of electrician solder is Lead-37%, tin-63%.
    Physics
    Energy that is produced commercially from coal is called
    Energy that is produced commercially from coal is called thermal energy.
    Physics
    A machine powered by rotating blades is a
    A machine powered by rotating blades is a turbines. A turbine is a device that harnesses the kinetic energy of some fluid – such as water, steam, air, or combustion gases – and turns this into the rotational motion of the device itself.[2] These devices are generally used in electrical generation, engines, and propulsion systems and are classified as a type of engine.
    Physics
    Light from the Sun reaches us in nearly
    The light from the sun takes about 8 minutes to reach the Earth after it has been emitted from the sun’s surface. The time it takes for light to reach planets in our Solar System varies from about 3 minutes for Mercury to about 5.3 hours for Pluto.
    Physics
    A mass of 20 kg is at a height of 8 m above the ground. Then the potential energy possessed by the body is: [Given g = 9.8 m/s]
    A mass of 20 kg is at a height of 8 m above the ground. Then the potential energy possessed by the body is 1586 J.
    Physics
    The sky appears blue because of
    Gases and particles in Earth’s atmosphere scatter sunlight in all directions. Blue light is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.
    Physics
    Hydraulic brakes work on the principle of
    Hydraulic brakes work on the principle of Pascal’s law.
    Physics
    Heat transfer by radiation mainly depends upon
    Heat transfer by radiation depends upon all of the above.