Physics, 10.11.2020 17:00 kasier4600

If a football player running down the field is tackled by another football player who holds onto the first football player so that they both fly out of bounds together, that collision is .

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Answer from: shayneseaton

Inelastic

Explanation:

If a football player running down the field is tackled by another football player who holds onto the first football player so that they both fly out of bounds together, that collision is inelastic.

An inelastic collision can be defined as a type of collision in which the total kinetic energy possessed by the colliding bodies doesn't remain the same as a result of internal friction.

This ultimately implies that, in an inelastic collision the maximum amount of kinetic energy possessed by the colliding bodies isn't conserved (kinetic energy is lost) after the collision, this is due to the action of an internal friction.

Mathematically, inelastic collision is given by the formula;

$V=\frac{(M_{1}V_{1}+M_{2}V_{2})}{(M_{1}+M_{2})}$

Where;

V is the final velocity in m/s. M1 is the mass of the first object in kgs. M2 is the mass of the second object in kgs. V1 is the initial velocity of the first object in m/s. V2 is the initial velocity of the second object in m/s.

Answer from: Quest

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm. the wire diameter is d = 0.9 mm. the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2) in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

Answer from: Quest

If football was tossed in air without gravity or friction the ball would go into space

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