The conversion factor from kilometers to meters is 1000, as 1 kilometer equals 1000 meters.

1 kilometer is approximately equal to 0.621 miles.

The result should be rounded to 3 significant figures, giving 5.5.

6.022 has 4 significant figures, so the result retains that count.

In scientific notation, 0.000123 is expressed as 1.23 x 10^-4, maintaining 3 significant figures.

In scientific notation, 0.000123 is expressed as 1.23 x 10^-4.

In scientific notation, all non-zero digits are significant. Therefore, 0.0001234 can be expressed as 1.234 x 10^-4, maintaining all significant figures.

In scientific notation, all digits in the coefficient are significant. Therefore, 0.000345 is expressed as 3.45 x 10^-4, which has 3 significant figures.

In scientific notation, 0.000450 is expressed as 4.50 x 10^-4, maintaining three significant figures.

The dimension of electric charge is [M^1 L^2 T^-3 I^1].

Frequency is defined as the number of cycles per unit time, thus its dimension is [M^0L^0T^-1].

The gravitational constant G has dimensions of [M^-1L^3T^-2] as it relates mass, distance, and time in the law of gravitation.

The dimensional formula for acceleration is [M^0 L^1 T^-2], as it is defined as the change in velocity per unit time.

The dimensional formula for electric charge is [M^1 L^2 T^-3 I^-1], derived from the definition of current (I = Q/t).

Energy has the dimensional formula [M^1 L^2 T^-2], as it is measured in Joules (1 J = 1 kg·m²/s²).

The dimensional formula for frequency is [M^0 L^0 T^-1], as it is defined as the number of cycles per unit time.

Pressure is defined as force per unit area. The dimensional formula for force is M¹L¹T⁻², and for area is L², thus pressure = M¹L¹T⁻² / L² = M¹L⁻¹T⁻².

Velocity is defined as displacement per unit time, which gives the dimensional formula of [MLT⁻¹].

Work has the dimensional formula [M^1 L^2 T^-2].

1 liter is equal to 0.001 cubic meters.

The significant figures are 1, 2, 3, and the trailing zero counts.

The significant figures are 4, 5, and 6. Leading zeros are not counted.

The prefix for 10^-6 is 'Micro'.

In multiplication, the result should have the same number of significant figures as the factor with the least significant figures. 3.00 has 3 significant figures and 2.5 has 2 significant figures, so the result should have 2 significant figures: 7.5.

The relationship is K = C + 273.15, where K is the temperature in Kelvin and C is the temperature in Celsius.

1 Joule is defined as 1 Newton-meter, so they are equal.

Weight is defined as the force due to gravity acting on a mass, given by the formula Weight = Mass × g (where g is the acceleration due to gravity).

The relationship is K = C + 273.15, where K is the temperature in Kelvin and C is the temperature in Celsius.

Energy and work are measured in the same unit, which is Joules (J).

Work and energy are measured in the same unit, which is Joules (J) in the SI system.