Final position of block " = 0.63 m

pellet

initial position of block
pellet of mass 8.80 g strikes a stationary wooden block and is completely embedded in
t. The centre of mass of the block rises by 0.63 m. The wooden block has a mass of 450
(a)
Determine the speed of the pellet when it strikes the wooden block.

(b) The wooden block is replaced by a steel block of the same mass. The experiment is
repeated with the steel block and an identical pellet. The pellet rebounds after striking the
block. Discuss how the height the steel
with the height of 0.63 m
reached by the wooden block. In your an
ergy and momentum changes
that occur in the two experiments.

Iron reacts with sulfur to form iron sulfide. if 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide, how much sulfur has been used in the chemical reaction?

Chapter 23, problem 075 the figure shows a geiger counter, a device used to detect ionizing radiation (radiation that causes ionization of atoms). the counter consists of a thin, positively charged central wire surrounded by a concentric, circular, conducting cylindrical shell with an equal negative charge. thus, a strong radial electric field is set up inside the shell. the shell contains a low-pressure inert gas. a particle of radiation entering the device through the shell wall ionizes a few of the gas atoms. the resulting free electrons (e) are drawn to the positive wire. however, the electric field is so intense that, between collisions with gas atoms, the free electrons gain energy sufficient to ionize these atoms also. more free electrons are thereby created, and the process is repeated until the electrons reach the wire. the resulting "avalanche" of electrons is collected by the wire, generating a signal that is used to record the passage of the original particle of radiation. suppose the radius of the central wire is 24 âµm, the inner radius of the shell 2.3 cm, and the length of the shell 14 cm. if the electric field at the shell's inner wall is 2.8 ă— 104 n/c, what is the total positive charge on the central wire?

How much force was applied to an object if was moved 2 meters and the work done on the object was 8 joules? a. 0.25 n b. 4 n c. 6 n d. 16 n