Homework Answers
A baseball has a mass of 0.15 kg and radius 3.7 cm. In a baseball game,...
A baseball has a mass of 0.15 kg and radius 3.7 cm. In a baseball game, a pitcher throws the ball with a substantial spin so that it moves with an angular speed of 31 rad/s and a linear speed of 55 m/s. Assuming the baseball to be a uniform solid sphere, determine the rotational and translational kinetic energies of the ball in joules. KErotational = KEtranslational=
A baseball has a mass of 0.15 kg and radius 3.7 cm. In a baseball game,...
A baseball has a mass of 0.15 kg and radius 3.7 cm. In a baseball game, a pitcher throws the ball with a substantial spin so that it moves with an angular speed of 30 rad/s and a linear speed of 39 m/s. Assuming the baseball to be a uniform solid sphere, determine the rotational and translational kinetic energies of the ball in joules. KE rotational = .012034 x What is the moment of inertia of a solid sphere?) KEtranslational...
Consider the 10.0 kg motorcycle wheel shown in the figure. A Assume it to be approximately...
Consider the 10.0 kg motorcycle wheel shown in the figure. A Assume it to be approximately an annular ring with an inner radius of R1 = 0.280 m and an outer radius of R2 = 0.300 m. The motorcycle is on its center stand, so that the wheel can spin freely. (a) the drive chain exerts of 2060 Nat radius of 5.0 cm, hat is the angular acceleration (in rad/s2) of wheel? rad/s2 (b) What is the tangential acceleration in...
The center of mass of a pitched baseball or radius 5.43 cm moves at 32.2 m/s.
The center of mass of a pitched baseball or radius 5.43 cm moves at 32.2 m/s. The ball spins about an axis through its center of mass with an angular speed of 112 rad/s. Calculate the ratio of the rotational energy to the translational kinetic energy. Treat the ball as a uniform sphere.
The center of mass of a pitched baseball or radius 5.26 cm moves at 57.4 m/s....
The center of mass of a pitched baseball or radius 5.26 cm moves at 57.4 m/s. The ball spins about an axis through its center of mass with an angular speed of 151 rad/s. Calculate the ratio of the rotational energy to the translational kinetic energy. Treat the ball as a uniform sphere.
When a pitcher throws a baseball or softball, the rotation speed is important when it comes...
When a pitcher throws a baseball or softball, the rotation speed is important when it comes to making the ball "break," or curve away from its expected motion. A softball that has a mass of 0.200 kg and a radius of 4.77 cm can rotate at a rate of 1.4410pm on its way to home plate, causing the ball to curve! Suppose this softball is rotating around an axis through its center at this extreme rate. What is the rotational...
8. A 3. A pitcher claims he can throw a 0.145-kg baseball with! as much momentum...
8. A 3. A pitcher claims he can throw a 0.145-kg baseball with! as much momentum as a 3.00-g bullet moving with a speed of 1.50 X 10° m/s. (a) What must the baseball's speed be if the pitcher's claim is valid? (b) Which has greater kinetic energy, the ball or the bullet? en bone break A railroad car of mass 2.00 X 10' kg maving collides and couples with two coupled to each of the same mans as the...
A 30.0-kg crate is pushed across a rough floor by a horizontal force of 100 N...
A 30.0-kg crate is pushed across a rough floor by a horizontal force of 100 N of kinetic fiction between the crate and the floor is 0.100. If a total of 80.5 1 of work the crate, how far was it moved along the floor? done 21. Find the magnitude of the force ating on a 3.0-kg (assume all units in MKSo-ms cated at -2.0 m inside a potential 22. Which one of the following statements is false? More power...
Please work out 3 clearly and with units. Thanks! 1. A 10-g bullet travels vertically upwards...
Please work out 3 clearly and with units. Thanks!
1. A 10-g bullet travels vertically upwards at 1000 m/s, then strikes and passes through a 2.0-kg block initially at rest. The bullet emerges from the block with a speed of 400 m/s because it transfers momentum to the block. (a) How much momentum did the block gain? (b) How fast is the block now moving, and what is its kinetic energy? (c) Using energy considerations only, to what maximum height...
A baseball has a mass of 0.15 kg and radius 3.7 cm. In a baseball game, a pitcher throws the ball with a substantial spin so that it moves with an angular speed of 30 rad/s and a linear speed of 39 m/s. Assuming the baseball to be a uniform solid sphere, determine the rotational and translational kinetic energies of the ball in joules. KE rotational = .012034 x What is the moment of inertia of a solid sphere?) KEtranslational...
Consider the 10.0 kg motorcycle wheel shown in the figure. A Assume it to be approximately an annular ring with an inner radius of R1 = 0.280 m and an outer radius of R2 = 0.300 m. The motorcycle is on its center stand, so that the wheel can spin freely. (a) the drive chain exerts of 2060 Nat radius of 5.0 cm, hat is the angular acceleration (in rad/s2) of wheel? rad/s2 (b) What is the tangential acceleration in...
When a pitcher throws a baseball or softball, the rotation speed is important when it comes to making the ball "break," or curve away from its expected motion. A softball that has a mass of 0.200 kg and a radius of 4.77 cm can rotate at a rate of 1.4410pm on its way to home plate, causing the ball to curve! Suppose this softball is rotating around an axis through its center at this extreme rate. What is the rotational...
8. A 3. A pitcher claims he can throw a 0.145-kg baseball with! as much momentum as a 3.00-g bullet moving with a speed of 1.50 X 10° m/s. (a) What must the baseball's speed be if the pitcher's claim is valid? (b) Which has greater kinetic energy, the ball or the bullet? en bone break A railroad car of mass 2.00 X 10' kg maving collides and couples with two coupled to each of the same mans as the...
A 30.0-kg crate is pushed across a rough floor by a horizontal force of 100 N of kinetic fiction between the crate and the floor is 0.100. If a total of 80.5 1 of work the crate, how far was it moved along the floor? done 21. Find the magnitude of the force ating on a 3.0-kg (assume all units in MKSo-ms cated at -2.0 m inside a potential 22. Which one of the following statements is false? More power...
Please work out 3 clearly and with units. Thanks!
1. A 10-g bullet travels vertically upwards at 1000 m/s, then strikes and passes through a 2.0-kg block initially at rest. The bullet emerges from the block with a speed of 400 m/s because it transfers momentum to the block. (a) How much momentum did the block gain? (b) How fast is the block now moving, and what is its kinetic energy? (c) Using energy considerations only, to what maximum height...
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