Question 4 (12 points) A piston with a circular base whose weight is 25 N, as shown in figure 3 below separates two chambers with
a
the same fluid at their base.
A
air B
air
D
50 cm
30 cm
C
25 cm
30 cm
E
water
90 cm

Shelly experiences a backward jolt when the driver starts the school bus. which of the following explains this phenomenon? a. the inertia of shelly b. the inertia of the bus c. the normal force of the seats on shelly d. the net force acting on shelly in a backward direction e. a zero net force acting on shelly

What are the examples for scaler quantities

In an exothermic chemical reaction the energy gained by the surroundings must be the energy lost by the reaction