In a vacuum where air resistance is zero, which variable below has no effect on the final falling velocity of an object?
Answer: Mass
You might also like to view...
Elastic Collisions: In a perfectly elastic collision, a 400-g ball moving toward the east at 3.7 m/s suddenly collides head-on with a 200 g ball sitting at rest.(a) Determine the velocity of the first ball just after the collision.(b) Determine the velocity of the second ball just after the collision.(c) Is kinetic energy conserved in this collision? How do you know?
What will be an ideal response?
The boundary shown is that of a uniform magnetic field directed in the positive z direction. An electron enters the magnetic field with a velocity pointing along the x axis and exits 0.63 ?s later at point A. What is the magnitude of the magnetic field?
A. 18 ?T B. 14 ?T C. 28 ?T D. 34 ?T E. 227 ?T
Which have the longest wavelengths when traveling in a vacuum?
A) radio waves B) light C) X-rays D) all the same
The initial speed of a cannon ball is 0.20 km/s. If the ball is to strike a target that is at a horizontal distance of 3.0 km from the cannon, what is the minimum time of flight for the ball?
a. 16 s b. 21 s c. 24 s d. 14 s e. 19 s