Impulse: A golf club exerts an average horizontal force of 1000 N on a 0.045-kg golf ball that is initially at rest on the tee. The club is in contact with the ball for 1.8 ms. What is the speed of the golf ball just as it leaves the tee?
A. 30 m/s
B. 35 m/s
C. 40 m/s
D. 45 m/s
E. 50 m/s
Answer: C
You might also like to view...
Astronomers often record solar images in the ____ part of the electromagnetic spectrum because the gaseous layers high in the Sun's atmosphere are very hot and emit most of their light at short wavelengths
a. microwave b. gamma c. visible light d. ultraviolet e. infrared
The range from the size of protons and neutrons to the size of the visible universe is:
a. 100. b. 10^-41. c. 10^41. d. 10^4. e. 10^-4.
Consider an object in orbit around a star. The star suddenly shrinks in size, but does not change its mass. What happens to the object's orbit?
A) It is instantly ejected from its orbit. B) It remains in the same orbit. C) It settles into a smaller orbit, with similar distance from the surface as the original orbit. D) It gradually spirals into the star.
A 10-L flask and a 1-L flask each contain two moles of ideal diatomic gas (but not the same gas) at 25°C. Which of the following statements about these gases must be true? (There could be more than one correct choice.)
A) The internal (thermal) energy of the gas in both flasks is the same. B) The internal (thermal) energy of the gas in the larger flask is greater than the internal (thermal) energy of the gas in the smaller flask. C) The internal (thermal) energy of the gas in the smaller flask is greater than the internal (thermal) energy of the gas in the larger flask. D) The molecules in the larger flask have the same root-mean-square speed as those in the smaller flask. E) The molecules in the smaller flask have the same average kinetic energy per molecule as those in the larger flask.