A 0.2 kg hockey park is sliding along the eyes with an initial velocity of -10 m/s when a player strikes it with his stick, causing it to reverse its direction and giving it a velocity of +25 m/s the impulse the stick applies to the park is most nearly

The impulse applied by the stick to the hockey park is approximately 7 kilogram-meters per second.  

Explanation:

The Impulse Theorem states that the impulse experimented by the hockey park is equal to the vectorial change in its linear momentum, that is:

(1)

Where:

- Impulse, in kilogram-meters per second.

- Mass, in kilograms.

- Initial velocity of the hockey park, in meters per second.

- Final velocity of the hockey park, in meters per second.

If we know that , and , then the impulse applied by the stick to the park is approximately:

The impulse applied by the stick to the hockey park is approximately 7 kilogram-meters per second.  

the force on the thing and the distance the force moves the thing

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27