Question 6 10 pts The volume of a cube is increasing at at rate of 20...
11. (5 pts) If each edge of a cube is increasing at the constant rate of 3 cm/s, how fast is the volume of the cube increasing when the length x of an edge is 10 cm?
- manual de 5. The volume of a cube is increasing at a rate of 10cm 3/min. How fast is the surface area increasing am seras --- when the length of an edge is 30cm.
O words Question 4 10 pts 4. A liquid is slowly cooled. As a result, a single solid nucleus in the shape of a perfect cube with edge length of a is formed in the liquid. The surface energy per unit area (or surface tension) of the solid is y (Greek symbol 'gamma'). The free energy per unit volume of the solid is AG (a) Calculate the surface area and volume of the solid nucleus (2 points) (b) Calculate the...
1. Thermal Expansion Af 20°C, an aluminum cube has an edge length of 20 cm. What is the increase in the surface area of the cube when it is heated from 20°C to 100°C? Your answer should be in units of cm
All edges of a cube are expanding at a rate of 7 centimeters per second. (a) How fast is the volume changing when each edge is 1 centimeter(s)? m3/sec (b) How fast is the volume changing when each edge is 13 centimeters? cm m3/sec
6. (4 pts) Air is being pumped into a spherical balloon so that its volume increases at a rate of 100 cm?/s. How fast is the radius of the balloon increasing when the diameter is 50 cm? The formula for the volume of a sphere is V = r.
9. (12) The volume of an expanding sphere is increasing at a rate of 167 ft/s when r = lft. How fast is the surface area increasing at that instant? (Recall: V = A=4r).
4. (10 points) The sides of a cube are increasing at a rate of 2cm . Find the rate at which the volume of the cube is increasing when the sides are 4cm long. V = x3 3. (12 points) Given x2 + xy + x + y2 = 0 find my
2, Sarah uses 5ķups of flour for every 2 loaves of bread she bakes. What is the unit rate of cups of flour per loaf of bread? Using this unit rate, how many cups of flour will Sarah need to make 5 loaves of 3. Rosie bought some tickets to a concert and found out that she could not go. She decided to sell them on line. Rosie wanted to markup the price 7% to make some money. If she...
Question 7 (3 points) Choose the answer. The edge of a cube was found to have a length of 50 cm with a possible error in measurement of 0.1 cm. Based on the measurement, you determine that the volume is 125,000 cm3. Use tangent line approximation to estimate the percentage error in volume. 0.6% 0.9% 1.2% 1.5% 1.8% Previous Page Next Page Page 7 of 10 Submit Quiz 3 of 10 questions saved