Neglecting the effect of air friction, at what angle should a cannon be raised to achieve the greatest HEIGHT?
What will be an ideal response?
90.°
You might also like to view...
A segment of wire carries a current of 25 A along the x axis from x = ?2.0 m to x = 0 and then along the z axis from z = 0 to z = 3.0 m. In this region of space, the magnetic field is equal to 40 mT in the positive z direction. What is the magnitude of the force on this segment of wire?
A. 1.0 N B. 5.0 N C. 2.0 N D. 3.6 N E. 3.0 N
Describe the distance and composition of the Alpha Centauri system
What will be an ideal response?
During a very cold winter, water pipes sometimes burst because
A) the ground contracts when colder, pulling pipes apart. B) water expands when freezing. C) water contracts when freezing. D) the thawing process produces pressure on the pipes. E) none of the above
Which costs more energy: changing 5 kg of ice into water at 0 °C, or changing 5 kg of water at 100 °C into steam at 100 °C?
What will be an ideal response?