4 kg obics S mass 4 kg and H with mass 6 kg are connected
so that goes over a frictionless pulley (both these messes
5
be ignored as shown in the figure The blocks are released
move at tree will There is no friction between S and the table
Clearly indicate all forces acting on each block as shown in
the figure
Draw a free body diagram for each block and then calculate
the acceleration of each block
Calculate the tension in the string (2]
(四)
For blocks
For block H
C
and the
accen
forces ar
ifficult​

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f