What is the absolute pressure at a depth of 9.05 m below the surface of a deep lake? assume atmospheric pressure is 1.01 × 10 5 pa .

1.89 x 10⁵ Pa

Explanation:

given,

depth of the lake = 9.05 m

atmospheric pressure = 1.01 × 10⁵ Pa

absolute pressure = ?

we know,

Absolute pressure = atmospheric pressure + gauge pressure

Absolute pressure = 1.01 × 10⁵ Pa + ρgh

Absolute pressure = 1.01 × 10⁵ Pa + 1000 x 9.8 x 9.05

Absolute pressure = 1.89 x 10⁵ Pa

hence, absolute pressure is equal to 1.89 x 10⁵ Pa

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

answer( sicar );