# Sphere + volume - math problems

#### Number of problems found: 80

• Feed to hay How many tons of water do we have to dehydrate from 8 tons of feed, if the original moisture is 54 percent, to get hay with a moisture content of 15 percent? Round to two decimal places.
• The volleyball ball The volleyball ball can have a circumference after inflation of at least 650 max 750 mm. What volume of air can this ball hold, if its circumference is the average of the minimum and maximum inflation of the ball.
• The golf The golf ball with a diameter of 43 mm is packed in a cube-shaped box. What percentage of the box volume is made up of a ball?
• The volume 6 The volume of a sphere is given by the formula 4/3 πr3 (or 4/3 *pi *r3) . The value of pi is approximately equal to 3.14. What is the volume of a sphere whose radius is 4 cm? (Round of the answer to the nearest hundredths. Type the value without the uni
• Metal balls Four metal balls with a diameter of 5 cm are placed in a measuring cylinder with an inner diameter of 10 cm. What is the smallest water volume to be poured into the cylinder so that all balls are below the water level?
• A semi-circular A semi-circular fishbowl is filled with water and has a diameter of 10 feet. What is the total weigh of water to the nearest pound in the tank, if water weighs 62.5 pounds per cubic foot?
• The inflated The inflated gymnastic ball should have a diameter of 65 cm. How many times do we have to pump air into a fully blown ball with a bicycle inflator to inflate it if the working volume of the inflator is a cylinder with an inner diameter of 2 cm and a heigh
• The granite ball What is the weight of a granite ball with a radius of 60 cm, if 1 m3 of granite weighs 2.7 tons?
• Brass ball What is the weight of a hollow brass ball, the outer diameter of which is 16 cm and the wall thickness is 2 cm, while the density of brass is ϱ = 8.5 g
• The reservoir The reservoir has the shape of a sphere with a diameter of 7.5 m. How many hectoliters can max fit in a reservoir?
• How many 9 How many percent volume remain of a sphere if diameter decrease 3×?
• Sphere cut A sphere segment is cut off from a sphere k with radius r = 1. The volume of the sphere inscribed in this segment is equal to 1/6 of the segment's volume. What is the distance of the cutting plane from the center of the sphere?
• Sphere parts, segment A sphere with a diameter of 20.6 cm, the cut is a circle with a diameter of 16.2 cm. .What are the volume of the segment and the surface of the segment?
• The volume The volume of the sphere is 1 m3, what is its surface?
• Brass sphere Find the weight of a brass ball with an outer radius of 12 cm, a wall thickness of 20 mm if the brass's density is 8.5 g/cm3.
• Thousand balls We have to create a thousand balls from a sphere with a diameter of 1 m. What will be their radius?
• Volume of sphere How many times does the volume of a sphere increase if its radius increases 2 ×?
• Gas sphere The gas tank has the shape of a sphere with a diameter of 14 m. How many m3 of gas will fit in it?
• Clay balls How many clay balls with a radius of 1 cm can be made from a ball of clay with a radius of 8 cm?
• Volume ratio Calculate the volume ratio of balls circumscribed (diameter r) and inscribed (diameter ϱ) into an equilateral rotating cone.

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