A45.0 kg ice skater needs a 25 n horizontal force to get moving on a smooth ice surface. what is the coefficient of friction between the ice and the skates?
a.1.80
c.0.18
b.0.057
d.0.56

Keneila is attempting to ski down a 20 m high friction free hill for the first time. she has a speed 10 m/s at the top. what is her kinetic energy when she is a the bottom, 20 m ? (a)2500 j (b)9800 j (c)12300 j (d)3100j (e)15000j

Two vectors are shown. which statement best compares the vectors? vector x has greater magnitude than vector y. vector y has greater magnitude than vector x. the vectors have the same displacement. the vectors have the same direction.

It is advised not to hold the thermometer by the bulb while reading it