Choose all the answers that apply.

A toy floats in a swimming pool. The buoyant force exerted on the toy depends on the volume ofa. none of these choices.b. all th

Citrus2011 [14]

Answer:c

Explanation:

The buoyancy force on toy depends upon the volume of toy under pool water.

According to Archimedes principle buoyant force on a floating body depends upon the weight of displaced liquid by object.

Buoyancy force is given by

$F_b=\rho _f\times V\times g$

where $\rho _f$ =density of fluid

V=volume of object under water

g=acceleration due to gravity

6 0

4 years ago

6.A Soldering Iron has a power of 25W. It uses the 230V mains supply. What is the current when it is switched on?

solmaris [256]

Power (P) in "watts" in a circuit is the product in multiplying the current (I) in "amperes" and voltage (V) in "volts".

P = I x V ; I = P / V

Substituting the given values,
I = (25 W) / (230 V) = 0.1087 amperes

Therefore, the current is approximately 0.1087 A.

4 0

4 years ago

Consider the direction field of the differential equation dy/dx = x(y − 6)2 − 4, but do not use technology to obtain it. Describ

Alona [7]

Answer:

The slopes shows that the direction of the field is from -2 to +2, with three point charges, q₁, q₂ and q₃ at -2, 0 and +2 respectively.

Explanation:

Given;

The slope, dy/dx = 2x(y-6) - 4

2x(y-6) - 4 = 2xy - 12x - 4, divide through by 'x'

dy/dx = 2y -12 - 4/x

The slopes of the linear elements on the lines, x =0, y = 5, y = 6, y = 7.