Answer:
A thermos bottle works well because:
A) Its glass walls are thin
Because the specimen is very small with a light microscope
Answer:
40 N
Explanation:
F=ma where F is the applied force, m is the mass of object and a is the acceleration.
Since there is no friction, substituting 20 Kg for m and 2 m/s squared for a then we obtain
F=20*2=40 N