Sphere practice problems - page 5 of 12
Number of problems found: 226
- The volleyball ball
The volleyball ball can have a circumference of at least 650 max 750 mm after inflation. What air volume can this ball hold if its circumference is the average of the minimum and maximum inflation of the ball?
- Sphere slices
Calculate the volume and surface of a sphere if the radii of a parallel cut r1=32 cm, r2=47 cm, and its distance v=21 cm.
- Brass sphere
Find the weight of a brass ball with an outer radius of 12 cm and a wall thickness of 20 mm if the brass's density is 8.5 g/cm³.
- Sphere
The sphere's surface is 28500 cm², and the weight is 34.2 kg. What is its density?
- Sphere cuts
At what distance from the center does the sphere intersect with the radius R = 46 plane if the cut area and area of the main sphere circle are in ratio 2/5?
- Shortest 81627
What is the shortest distance across the globe's surface on a scale of 1:1,000,000 from the equator to the North Pole?
- The Earth
The Earth's surface is 510,000,000 km². Calculates the radius, equator length, and volume of the Earth, assuming the Earth has the shape of a sphere.
- Horizon
The top of a lighthouse is 19 m above the sea. How far away is an object just "on the horizon"? [Assume the Earth is a sphere of radius 6378.1 km.]
- Determine 10561
The hollow nickel ball has an outer diameter of 0.4 meters and an inner diameter of 0.3 meters. If the nickel density is 9000 kg/m3, determine its weight.
- Earth's surface
The greater part of the Earth's surface (r = 6371 km) is covered by oceans; their area is approximately 71% of the Earth's surface. What is the approximate area of the land?
- Equator 6020
The Equator. ..40075 km train. ..300m. How many trains would fit on the Equator?
- Sphere equation
Obtain the equation of a sphere. Its center is on the line 3x+2z=0=4x-5y and passes through the points (0,-2,-4) and (2,-1,1).
- Calculate 69244
The surface of the sphere is 624 cm². Calculate its radius.
- Earth parallel
Earth's radius is 6377 km long. Calculate the length parallel to latitude 75°.
- Sphere radius
The surface of the sphere is 60 cm square. Calculate its radius; result round to tenth of cm.
- Circumference 61944
Calculate the volume and surface of the planet Venus if its circumference is 12,000 km.
- Calculate 73534
The sphere has a diameter of 70 cm. Calculate its surface area and volume.
- Calculate 21163
Calculate the volume and surface area of the sphere if given r = 36mm.
- Calculate - sphere
Calculate the surface and volume of the sphere if its radius r = 5 cm.
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