# CHEM

The mass of a golf ball is 45.9g. If it leaves the tee with a speed of 72.0 m/s, what is its corresponding wavelength?

lambda=h/mv
lambda=6.626*10^-34/(45.9g)(72.0m/s)
lambda=2.00*10^-37 ???

Is the question this easy or is there some conversion that I am missing??

1. 👍
2. 👎
3. 👁
1. You are talking about the DeBroglie wavelength, a concept from quantum mechanics. It is equal to Planck's constant, h = 6.62*10^-34 J, divided by the momentum M v of the golf ball. You will find it to be very short compared to the size of the golf ball.

You have the right formula but you must express the mass in kg, not grams, since you are using SI units for h.

1. 👍
2. 👎
2. so...would I find the answer to be:

lambda=6.626*10^-34 J s/(0.0459kg)(72.0m/s)

or should I have squared the 72.0m/s velocity?

1. 👍
2. 👎
3. 2.0*10^-34 was correct. Thank you.

1. 👍
2. 👎
4. the answer is 1.95×10−34m. trust me, i got it wrong and it just told me the right answer !! :/

1. 👍
2. 👎
5. 1.85×10−34m NOT 1.95×10−34m

1. 👍
2. 👎
6. 2.0*10^-34 was correct.

1. 👍
2. 👎

## Similar Questions

1. ### Physics

On a distant planet, golf is just as popular as it is on earth. A golfer tees off and drives the ball 4.1 times as far as he would have on earth, given the same initial velocities on both planets. The ball is launched at a speed

2. ### chemistry

The mass of a golf ball is 45.9g . If it leaves the tee with a speed of 80.0m/s , what is its corresponding wavelength?

A golf ball of mass 0.045 kg is hit off the tee at a speed of 48 m/s. The golf club was in contact with the ball for 5.4 10-3 s. (a) Find the magnitude of the impulse imparted to the golf ball. (b) Find the magnitude of the

4. ### chemistry

The mass of a golf ball is 45.9g . If it leaves the tee with a speed of 80.0m/s , what is its corresponding wavelength?

1. ### physics

A golf club strikes a 0.040-kg golf ball in order to launch it from the tee. For simplicity, assume that the average net force applied to the ball acts parallel to the ball’s motion, has a magnitude of 7950 N, and is in contact

2. ### physics-3

A golf ball at a mini golf course travels 4.2 m along a carpeted green. When the ball reaches the hole 3.0 s later, its speed is 1.3 m/s. Assuming the ball undergoes constant uniform acceleration, what is the ball's initial speed?

3. ### Physics

A golf ball of mass 50.0 grams is at rest on a tee. It is struck by a golf club with an average force of 850 Newtons. The ball accelerates to a speed of 68.0 m/sec. How long was the club in contact with the ball?

4. ### Physics

A 49.9-g golf ball is driven from the tee with an initial speed of 48.8 m/s and rises to a height of 24.0 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when

1. ### Physics

A woman, driving a golf ball off a tee, gives the ball a velocity of 28.0 m/s. The mass of the ball is 0.045 kg, and the duration of the impact with the golf club is 6 x 10-3 s. 3a. What is the change in momentum of the ball

2. ### Physics

A golf ball, mass 0.048 kg, rests on a tee. It is struck by a golf club with an effective mass of 0.225 kg and a speed of 44 m/s. Assuming the collision is elastic, find the speed of the ball when it leaves the tee (remember: you