A rectangular wooden block, 22 cm x 13.2 cm x 4.4 cm, has a mass of 1562.0 g. The density of the wood in kg/m 3 is:

1222.45 Kg/m³

Explanation:

The following data were obtained from the question:

Dimension of rectangular block = 22 cm x 13.2 cm x 4.4 cm

Mass (m) = 1562.0 g

Density (D) =?

Next, we shall determine the volume of the rectangular block.

This is illustrated below:

Volume = length x breadth x height

V = 22 cm x 13.2 cm x 4.4 cm

V = 1277.76 cm³

Next, we shall convert 1277.76 cm³ to m³.

This can be obtained as follow:

1 cm³ = 1×10¯⁶ m³

Therefore,

1277.76 cm³ = 1277.76 × 1×10¯⁶

1277.76 cm³ = 1.27776×10¯³ m³

Therefore, 1277.76 cm³ is equivalent to 1.27776×10¯³ m³.

Next, we shall convert 1562.0 g to kg. This can be obtained as follow:

1000 g = 1 kg

Therefore,

1562.0 g = 1562/1000 = 1.562 kg

Therefore, 1562.0 g is equivalent to 1.562 Kg.

Finally, we shall determine the density of rectangular block as follow:

Volume = 1.27776×10¯³ m³.

Mass = 1.562 Kg.

Density =?

Density = mass /volume

Density = 1.562 / 1.27776×10¯³

Density = 1222.45 Kg/m³

Therefore, the density of rectangular block is 1222.45 Kg/m³

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:

show the wavelengths of a wave. show the crests of a wave.