Answer:
depth is 1.16 m
Explanation:
given data
length = 8 cm
density = 840 kg/m³
weight = 25 N
atmospheric pressure = 85 kPa
to find out
what depth in the lake will the pressure be twice the atmospheric pressure
solution
we know here that two thirds of the cube is submerged
we get first mass of cube that is
mass = 0.08³ × 0.08 = 0.43008 kg
and g = weight ÷ mass
g =
g = 58.12 m/s²
and we get now ρ for two thirds of the cube is submerged that is
weight = 0.08³ × 58.12 × ρ ×
25 = 0.08³ × 58.12 × ρ ×
ρ = 1260.18 kg/m³
pressure = ρgd ..................1
pressure = 1260.18 × 58.12 × d
85 × 10³ = 1260.18 × 58.12 × d
d = 1.16 m
Answer:
C Restoring Force
Explanation:
Given data
Fs=-kx
According to Hokes Law, provided the elasticity of an elastic material is not exceeded the extension xis directly proportion to the applied force F
From the expression, F represent the Restoring Force in Newton
Answer:
A
Explanation:
Because it is a region in atmosphere that allows an particular wavelength of EMWs to pass through and of the options above only visible light is allowed to pass through
Answer:
Explanation:
i hope your mind is clear your full answer in image
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Answer:
option C
since F=ma
the acceleration of an object depends on the object's mass and the net applied force