A centrifuge accelerates from rest to 12,000 rpm in 235s. What was the centrifuge's angular acceleration?

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?

What are known as the properties of substances that describe a substance et does not change that substances?