Which of the following stretching exercises is potentially harmful and should be avoided

a. standing toe touch

b. half-knee bend

c. modified hurdler stretch

d. laying hamstring stretch

Stars x and y are both bluish main sequence stars. star x has a higher absolute brightness than star y. how do the two stars compare? explain

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

Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.