A light bulb is 4.1 m from a surface. how much luminous flux must the bulb produce if the illuminance required is 22 lx?

An object experiences an impulse, moves and attains a momentum of 100 kg·m/s. If its mass is 50 kg, what would its velocity be?

When temperature increases the kinetic energy of the particles in a material, true or false?

Turner's treadmill starts with a velocity of -2.7 m/s and speeds up at regular intervals during a half-hour workout. After 33 min, the treadmill has a velocity of - 7.1 m/s.

An alternating current in a wire has a voltage of 2,800 V. It needs to be reduced 70 V. The wire makes 120 turns in the primary coil of a step - down transformation. How many turns of wire need to be in the secondary coil?

The hydrogen bomb relies on the process of nuclear fission. True or False

Find velocity gradient

In equation y = mx means what

Sea anemones can produce completely new organisms by regeneration. Are these new organisms genetically identical to the parents? Why or why not

What are 3 types of muscle tissue still?

Which of the following is a true statement? * Waves do not transport matter through which they travel Waves can transport matter through solids, liquids and gases, but not through empty space.