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- Pls help ASAP. Pls give the significant figures of each of the answer.Two spheres are cut from a certain uniform rock. One has radius 4.45 cm. The mass of the other is three times greater. Find its radius. cmA scanning electron micrograph of xylem vessels in a corn root shows the vessels magnified by a factor of 608. In the micrograph the xylem vessel is 5.60 cm in diameter. What is the diameter of the vessel itself, answer in cm? and By what factor has the cross-sectional area of the vessel been increased in the micrograph?
- Earth is approximately a sphere of radius 6.37 × 106 m. What are (a) its circumference, (b) its surface area, and (c) its volume?A box containing basketball equipment is sitting on a shipping pallet. The box plus the contents weighs 40.0 newtons [N], and the pallet weighs 155 newtons [N]. The box can be modeled as a rectangular parallelepiped and has the following dimensions: 3 inches [in] by 15 inches [in] by 20 inches [in]. Assume the pallet is also a rectangle and has the following dimensions: 4 feet [ft] by 3.5 feet [ft] by 0.25 feet [ft]. The box is sitting on the pallet in the configuration shown below. What is the pressure exerted by the box onto the pallet in units of pound-force per square inch [psi]? | Click the icon to view the conversion table. 20 in 3 in 0.25 ft [( 15 in 3.5 ft 4 ft The pressure is psi. (Round your answer to four decimal places.)the average density of an atom is approximately 103 kg/m3. The nucleus of an atom has a radius about 10-5 times that of the entire atom, and contains nearly all the mass of the atom. What is the approximate density, in kilograms per cubic meter, of a nucleus?
- What is the ratio of the surface area to the volume (a) for the 1 m sphere (b) for the 2 m sphere (c) for the 3 m sphere? A) (a) 1/3 (b) 2/3 (c) 1 B) (a) 3 (b) 1.5 (c) 1 C) (a) 1 (b) 1.5 (c) 3 D) (a) 1 (b) 2/3 (c) 1/3A uniform cylindrical shaped object has a mass of 160.0 g, diameter 76.2 mm, and a height (thickness) of 25.4 mm. What is its density? Group of answer choices 1.38 × 103 kg/m3 2.97 × 103 kg/m3 5.48 × 103 kg/m3 7.68 × 103 kg/m3A box containing basketball equipment is sitting on a shipping pallet. The box plus the contents weighs 40.0 newtons [N], and the pallet weighs 155 newtons [N]. The box can be modeled as a rectangular parallelepiped and has the following dimensions: 3 inches [in] by 15 inches [in] by 20 inches [in]. Assume the pallet is also a rectangle and has the following dimensions: 4 feet [ft] by 3.5 feet [ft] by 0.25 feet [ft]. The box is sitting on the pallet in the configuration shown below.