No, it is not possible to throw a ball faster than the speed of sound using only your hands with no external forces involved. The speed of sound in air at room temperature is approximately 343 meters per second (about 767 miles per hour). To achieve such high speeds, you would need to apply forces far beyond what human hands are capable of generating.
When you throw a ball, the maximum speed it can reach is limited by the energy you can transfer to it through your muscles. The human body cannot generate enough force to propel an object like a ball to supersonic speeds without any external aids.
Additionally, even if you could somehow overcome the physical limitations of the human body and achieve extremely high throwing speeds, you would still face other challenges. The drag force from the air would quickly slow down the ball as it moves through the atmosphere, making it extremely difficult for the ball to exceed the speed of sound.
To achieve supersonic speeds, you would need specialized equipment, such as a firearm or a powerful machine that could accelerate the ball to those velocities. However, even in such cases, the ball would still experience air resistance and other factors that would limit its speed and trajectory.