How fast does it move after the bullet emerges
A 23-g bullet traveling 285m/s penetrates a 4.5kg block of wood and emerges cleanly at 230m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?
Expected delivery within 24 Hours
A cart loaded with bricks has a total mass of 20.4 kg and is pulled at constant speed by a rope. The rope is inclined at 31? above the horizontal and the cart moves 17.4 m on a horizontal ?oor. The coeffcient of kinetic friction between ground and
What is the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them? Take the speed of sound to be 344 m/s.
How do you turn a harmonic minor scale into a melodic minor scale?
If the total initial kinetic energy of the fission fragments is 150 MeV, what is the initial kinetic energy of each? What is the total kinetic energy shared by the four prompt neutrons?
In one cycle, a steady device transfers 1.55 × 106 J of energy from a reservoir at 450 K to a reservoir at 300 K. Find the change in entropy (after one complete cycle), (a) for the device, and (b) for the environment.
What are the pros and cons of your selected system or method?
Write an essay about any ethical dilemma.
Which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of the pendulum's displacement.
1949721
Questions Asked
3,689
Active Tutors
1414743
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Question 1: Describe how natural selection is part of population genetics among the Southwestern Athabaskan Amerindians
Keegan, an 8 -year-old, no longer thinks a row of pennies in front of him contains more pennies than a row of the same number of pennies
Humans, horses, porpoises, and bats all have very different forelimbs, but the bones inside them show similar shapes, positions, and development,
Question: In addition to natural selection, four other forces can drive evolutionary change. Which of these is NOT one of them?
Question: Which of these are pre-zygotic isolating mechanisms? (Select all that apply.)
Question: According to the reading, how many recognized fuel models are used for fire behavior (documented by Albini 1976)?
Question: Which of the following could explain why a particular prey item was captured/consumed at a higher rate?