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Explain the importance of the integumentary system
What is the initial velocity of the projectile parallel to the ground (in the x-direction) and perpendicular to the ground (in the y-direction)?
An unstable nucleus of mass 3.4 10-26 kg, initially at rest at the origin of a coordinate system, disintegrates into three particles. One particle, having a mass of m1 = 1.0 10-26 kg, moves in the
In guinea pigs, black (B) is dominant to brown (b), and dolid color (S) is dominant to spotted (s). A heterozygous black, solid-colored pig is mated with a brown, spotted pig. The total offspring for
What is the angular momentum of a figure skater spinning at 2.7rev/s with arms in close to her body, assuming her to be a uniform cylinder with a height of 1.5 m, a radius of 16cm , and a mass of 47
A solid cylindrical disk has a radius of 0.13 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. When a 50-N force is applied tangentially to the disk,
Find the velocity of each ball when the two collide. Let upward be considered the positive direction for this problem.
1. Explain how the temperature difference between the poles and the equator drives the motion of the oceans and atmosphere. 2. What are the differences between ice caps and glaciers?
A rifle bullet with a muzzle speed of 310 m/s is fired directly into a special, dense material that stops the bullet in 26 cm. Assuming the bullet's deceleration to be constant, what is its magnitu
Dialysis patients, who will have blood withdrawn, dialyzed, then replaced, are always weighed when they enter the facility and then weighed carefully before they leave. What is the most likey explanat
Then brakes to come to a stop 40 {rm s} after leaving the stop sign. Compute the average acceleration during the time interval t = 0 to t = 10{rm{ s}}.
What accounts for the genetic dissimilarity between daughter cells and the parent cell following meiosis?
1. What is a particle accelerator? How do scientists use particle accelerators to study subatomic particles? 2. What particle is exchanged to generate each of the four fundamental forces?
A moth at about eye level is 12 cm in front of a plane mirror; you are behind the moth, 28 cm from the mirror. For what distance must you focus your eyes to see the image of the moth in the mirror;
Lack of water common in the summer;seasonal temperature variations; maintained by periodic fires
On reaching the other train it flies directly back to the first train, and so forth. (We have no idea why a bird would behave in this way.) What is the total distance the bird travels before the tra
You purchase a rectangular piece of metal that has dimensions 5.00 mm x 15.0 mm x 30.0 mm and mass 1.90×10-2 kg. The seller tells you that the metal is gold. To check this, you compute the ave
What monomer can package energy that can be easily transported in the cell?
Explain how posttraumatic stress disorder (PTSD) differs from other anxiety disorders.(please include references)
A science student riding on a flatcar of a train moving at a constant speed of 9.4 m/s throws a ball toward the caboose along a path that the student judges as making an initial angle of 61° to
3 kg baseball travelling at 45 m/s approaches a waiting batter. when the ball is hit, its back, sailing away at 70 m/s. determine the magnitudes of its initial and final momenta?
Which of the following characteristics most likely explains why insects are so successful at dispersing to distant environments
Do you think nuclear power is a productive idea, or a danger to the environment? Try to find as much information as possible to support the opposing viewpoint (i.e., if you think nuclear power is d
New plastics are being created from corn and soybeans and these plastics break down when exposed to air and water. In what ways will the environment benefit from these biodegradable plastics? Should