A standard adult-sized bowling ball typically weighs between 10 to 16 pounds (4.5 to 7.3 kilograms). However, there are also lighter options available for children and beginners, usually ranging from 6 to 9 pounds (2.7 to 4.1 kilograms). The weight of a bowling ball is an important factor in determining the speed and control of the ball as it is rolled down the lane. **

The weight of a gold ball would depend on its size and the purity of the gold. Gold is a dense metal, so a large solid gold ball could potentially be very heavy. However, if the gold ball is small or hollow, it may not be too heavy. It's important to consider the specific dimensions and weight of the gold ball in question before determining if it would be too heavy. **

For heavy bag and punching ball training, it is best to use gloves specifically designed for bag work. Look for gloves with ample padding to protect your hands and wrists from the impact of hitting the heavy bag or punching ball. Gloves with wrist support and a secure closure system are also important to prevent injury during intense training sessions. Additionally, gloves with a durable outer shell and reinforced stitching are ideal for withstanding the rigors of heavy bag and punching ball workouts. **

The weight of the ball for a long throw depends on the individual's strength and throwing technique. Generally, a heavier ball can be thrown farther due to its increased momentum, but it also requires more strength to throw. A good starting point for a long throw ball is around 14-16 ounces, but some individuals may be able to throw heavier balls with proper training and technique. It's important to find a weight that allows for a powerful throw without sacrificing accuracy or risking injury. **

No, 9.10 meters is not a good distance for shot put with a 725 kg heavy ball. In the sport of shot put, athletes typically use a 7.26 kg ball, not 725 kg. The world record for shot put with a 7.26 kg ball is over 23 meters, so 9.10 meters is not a competitive distance. Additionally, a 725 kg ball would be far too heavy for any athlete to throw in a shot put competition. **

The bullet from an AK-47 would reach the ground first. This is because the bullet is propelled horizontally with a high velocity, while the ball falling vertically is only affected by gravity. The horizontal velocity of the bullet does not affect the rate at which it falls vertically, allowing it to reach the ground faster than the ball falling vertically. **

To find the weight of the concrete ball, we can first calculate its volume using the formula for the volume of a sphere: V = (4/3)πr³, where r is the radius of the sphere. Since the diameter of the ball is 180 cm, the radius is 90 cm. Plugging this into the formula gives us a volume of approximately 3,052,763.8 cm³. Since 1 dm³ is equal to 1,000 cm³, the volume of the ball is approximately 3,052.8 dm³. Multiplying this volume by the weight of 1 dm³ of concrete (22 kg) gives us a weight of approximately 67,161.6 kg for the concrete ball. **

The bullet from an AK-47 would hit the ground first. This is because the bullet is propelled horizontally with a high velocity, while the ball falling vertically is only affected by gravity. The horizontal velocity of the bullet does not affect the rate at which it falls vertically, so it will reach the ground faster than the ball falling vertically. **