Answer:
-4,651.42N
Explanation:
Since we are not asked what to find, we can calculate the force applied by the track as shown;
F = ma
F = m(v-u)/t
Substitute the given value
F = 4400(7.6-52)/42
F = 4400(-44.4)/42
F = -4,651.43N
Hence the required force is -4,651.42N
The volume of a cylinder is PI*R^2H where PI is a regular, R is the radius and H the height. Consequently, the quantity of the iron rod could be (3.141)*((2.05/2)^2)*(ninety four.Three) = 311.2 cm^three. The density of Iron is 7.874 gm/cm^3, so the whole weight would be 2449 grams, or about 2.5 kilograms.
Answer:
Polyurethane foam insulation that is environmentally safe, and that increases heat conservation
• A polybutelene tank with a layered fiberglass exterior
• Automatic thermostats that allow you to set water temperature at different levels at different times
Answer:
First Step:
Volume of metal sample= Final Volume - Initial Volume
Volume of metal= 37.4 mL - 33.0 mL = 4.40 mL
Second step:
Density= mass/ volume
Density= 7.101 g/ 4.40 mL = 1.61 g/mL
For part B, we are going in reverse.
First step, finding the volume of the metal=
Volume= mass/ Density
Volume= 7.101 g/ 2.7 g/mL= 2.63 mL
So, the water would have risen 2.63 mL when the aluminum sample would have been added.
Explanation:
