19. Given the v-t graph find the instantaneous acceleration at time t=1s and the average acceleration from time t=2s to t=4s 25 15. 5.0 2.0 4.0 6.0 8.0 t(s) (s/) *A
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- mass (g) diameter (cm) height (cm) volume (cm^3) 16.20 1.21 5.30 ? 43.98 1.80 6.41 ? 79.49 2.11 8.49 ? 139.1 2.59 9.69 ? 1. The slope of your line is the density of the material of which your cylinders are made. What is this value, including units? 2. Table 2 contains a list of materials, along with their densities/ Based on your value in Question 1, what is your cylinder material? Material Density (g/cm^3) maple 0.77 polypropylene 0.90 polystyrene 1.03 polyamide 1.15 acrylic 1.17 polyurethane 1.23 phenolic 1.32 polyvinylchloride 1.37 poly tetrafluoroethylene (teflon) 2.20 aluminum 2.71Calculate the mass of a solid gold rectangular bar that has dimensions lwh = 5.65 cm ✕ 10.5 cm ✕ 27.5 cm. (The density of gold is 19.3 ✕ 103 kg/m3.)Calculate the mass of a solid gold rectangular bar that has dimensions Iwh = 4.80 cm x 12.0 cm x 25.0 cm. (The density of gold is 19.3 x 103 kg/m³.) kg
- A sphere made of either brass or aluminum has a radius r= 10cm. What is its mass?Question 6: Suppose you have a coffee mug with a circular cross-section and vertical sides. What is its inside radius in cm if it holds 375 g of coffee when filled to a depth of 7.5 cm? Density of coffee is 1000 kg/m³. Unit conversion: 1 kg = 1000 g; 1 m = 100 cm.what is the density of water in kg/m^3
- [0°] B = 8.52 m/ C S [270°] = 5.68 m/s [180] =show that v^2/r has dimensions of m/s^2The power available from a wind turbine is calculated by the following equation: Question Help ▼ P = where P= power [watts], A=sweep area (circular) of the blades [square meters], p= air density [kilograms per cubic meter], and v=velocity [meters per second]. A wind turbine generator has a blade diameter of 380 feet [ft]. The specific gravity of air is 0.00123. Assuming a velocity of 32 miles per hour [mi/h] and the power produced is 4.8 megawatts [MW], determine the efficiency of this turbine. : Click the icon to view the conversion table for length. E Click the icon to view the density of water. E Click the icon to view SI prefixes table. E Click the icon to view the table of common derived units in the SI system. The efficiency of this turbine is | %. (Round your answer to one decimal place.) Enter your answer in the answer box and then click Check Answer. Clear All Check Answer All parts showing hp