A volleyball is spiked so that its incoming velocity of +2.09 m/s is changed to an outgoing velocity of -24.6 m/s. The mass of the volleyball is 0.350 kg. What is the magnitude of the impulse that the player applies to the ball?

Impulse, J = 9.34 kg-m/s

Explanation:

Given that,

Mass of the volleyball, m = 0.35 kg

Initial velocity, u = +2.09 m/s

Final speed, v = -24.6 m/s

We need to find the magnitude of the impulse that the player applies to the ball. We know that impulse is equal to the change in momentum . So,

So, the magnitude of the impulse that the player applies to the ball is 9.34 kg-m/s.

watch you tube or play clash royale, mainly clash royale

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia