5) How many minutes is required for sunlight to travel from the Sun to Mars? (Assume the Sun is 1.14 x 10^8 km from Mars and that sunlight travels at 2.99 x 10^5 km/s.)(a) 0.00437 minutes (b) 0.157 minutes(c) 6.35 minutes (d) 381 minutes(e) 22,900 minutes Step by step use the conversion factors with starting point and put lines in between the numbers and cancel the units 6) Platinum is one of the most dense elements (d = 21.5 g/cm^3). What is the volume of a 10.0 g sample of the metal?(a) 0.465 cm^3(b) 2.15 cm^3(c) 21.5 cm^3(d) 215 cm^3(e) 465 cm^3 Step by step, use the conversion factors with starting point and put lines in between the numbers and cancel the units 7) A rare metal alloy is a superconductor at 77 K. What is the temperature in °C ?(a) -350°C (b) -196°C(c) -77°C (d) 196°C(e) 350°C Step by step use the conversion factors with starting point and put lines in between the numbers and cancel the units 8) The average distance from the Earth to the Sun is 1.50 x 10^8km. Express thedistance in centimeters.(a) 1.50 x 10^2 cm (b) 1.50 x 10^7cm(c) 1.50 x 10^9 cm (d) 1.50 x 10^11cm(e) 1.50 x 10^13cm Step by step use the conversion factors with starting point and put lines in between the numbers and cancel the units
5) How many minutes is required for sunlight to travel from the Sun to Mars? (Assume the Sun is 1.14 x 10^8 km from Mars and that sunlight travels at 2.99 x 10^5 km/s.)
(a) 0.00437 minutes (b) 0.157 minutes
(c) 6.35 minutes (d) 381 minutes
(e) 22,900 minutes
Step by step use the conversion factors with starting point and put lines in between the numbers and cancel the units
6) Platinum is one of the most dense elements (d = 21.5 g/cm^3). What is the volume of a 10.0 g sample of the metal?
(a) 0.465 cm^3
(b) 2.15 cm^3
(c) 21.5 cm^3
(d) 215 cm^3
(e) 465 cm^3
Step by step, use the conversion factors with starting point and put lines in between the numbers and cancel the units
7) A rare metal alloy is a superconductor at 77 K. What is the temperature in °C ?
(a) -350°C (b) -196°C
(c) -77°C (d) 196°C
(e) 350°C
Step by step use the conversion factors with starting point and put lines in between the numbers and cancel the units
8) The average distance from the Earth to the Sun is 1.50 x 10^8km. Express the
distance in centimeters.
(a) 1.50 x 10^2
cm (b) 1.50 x 10^7
cm
(c) 1.50 x 10^9
cm (d) 1.50 x 10^11
cm
(e) 1.50 x 10^13
cm
Step by step use the conversion factors with starting point and put lines in between the numbers and cancel the units
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