A hippo is dozing under water with only its small nostrils sticking out. It has a mass of 2500 kg and a volume of about 2.46 m3 after exhaling. The hippo is in a pool of fresh water, with a density of 1g/cm3. What is the buoyancy force on the hippo?

The buoyancy force on the hippo is 24108 N

Explanation:

Given;

mass of hippo, m = 2500 kg

volume of hippo, V = 2.46 m³

density of fresh water, ρ = 1g/cm³

The buoyancy force on the hippo, is calculated used the following formula;

density of hippo = mass / volume = 2500/2.46 = 1016.26 kg/m³

density of fluid = 1g/cm³ = 1000 kg/m³

Therefore, the buoyancy force on the hippo is 24108 N

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

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