How many joules of heat are needed to raise the temperature of 20g of aluminum from 54^\circ ∘ c to 82^\circ ∘ c, if the specific heat of aluminum is 0.540 j/gc a. 302.4 j b. 29 j c. 1037 j d. 0.76 j

An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³

Two nails have identical sizes and shapes. in one nail, 20 percent of the domains are lined up. in the other nail, 80 percent of the domains are lined up. which has stronger magnetic force? first answer gets brainliest!

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.