Bone has a Young’s modulus of about 1.8 × 1010 Pa . Under compression, it can
withstand a stress of about 1.65 × 108 Pa before breaking.
Assume that a femur (thigh bone) is 0.6 m
long, and calculate the amount of compression
this bone can withstand before breaking.
Answer in units of mm.

The speed of light can be used to measure the

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.

Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25º, b) el tiempo que el balón permanece en el aire.