Two projectiles are fired from ground level at equal speeds but different angles. One is fired at an angle of 30° and the other at 60°. Neglecting air resistance, the projectile to hit the ground first will be the one fired at
A) 30°.
B) 60°.
C) both hit at the same time
Answer: A
You might also like to view...
Steel pins are driven into asphalt pavement as shown in Figure 2-58. Estimate the heat transfer between a pin when it is at 60ºF and the surface when it is at 110ºF.
What is the benefit of a longer exposure time when making an image?
A) It allows the detector to collect more total light. B) It allows the detector to measure rapid variations in light intensity. C) It allows the detector to record light at very short wavelengths. D) It allows the detector to achieve higher angular resolution.
There is no obvious evidence for large-scale structure greater than about
A) 200 kpc. B) 600 kpc. C) 200 Mpc. D) 600 Mpc. E) 2000 Mpc.
Like the discovery of Uranus, the finding of Neptune was accidental
Indicate whether the statement is true or false