<span>When biological weathering occurs, the living organism breaks down the rock or other nonliving object through either mechanical or chemical erosion or the use of both. </span>
Answer:
Palpation of the prostate is done by palpating it through the anterior portion of the rectal wall.
Explanation:
Prostate palpation is performed in doctors' offices during a routine urologist appointment. The specialist will ask the patient to take off his clothes and lie on a stretcher. The position for rectal touch depends on the practice of each doctor. It can be done lying in bed in the gynecological position, lying on its side or standing flexing the abdomen on the stretcher.
The doctor will introduce the gloved, lubricated finger into the rectal region (canal that connects the anus to the rectum) and reach the prostate through the anterior portion of the rectal wall. The exam takes approximately 10 seconds to complete. The procedure is painless, but may end up causing some discomfort.
Answer:
The efficiency of the hair dryer is 0.2 or 20%
Explanation:
The efficiency of a machine or any appliance is a measure of the useful work done by the machine when an effort is applied to the machine. The higher the efficiency of a machine, the more useful work the machine does.
Due to the economical and environmental impact of energy production, machines and appliances of high efficiency are being developed and recommended for domestic as well as industrial use nowadays.
In electrical appliances, energy is usually supplied by electrical power units. The higher the efficiency of an electrical appliance, the less power it consumes to do useful work. For a hair dryer which takes in 3000 J of energy per second and transfers 600 J of useful heat energy, its efficiency is calculated with formula below:
efficiency = useful energy / total energy input
Efficiency = 600 J / 3000 J = 0.2
Therefore, the efficiency of the hair dryer is 0.2 or 20%
Most tissues in the body are capable to repairing themselves but the type of tissue that is not readily repaired when damaged are is the tissue of the nervous system. This is due to the complexity of the brain and the spinal cord. Once damage is not, permanent paralysis happens.