An electric wire in the wall of a building carries a dc current of 25 a vertically upward. what is the magnetic field due to this current at a point 10 cm due northof the wire

Answer:

120

Explanation:

KE = (mv^2)/2

= ((0.15)(40)^2)/2

= ((0.15)(1600))/2

= 240/2

Answer:

Because Moon and Mars has no atmosphere.

Explanation:

Moon and Mars has no atmosphere, so there is no friction on the falling object due to the atmosphere. The speed of the falling object is more at Moon and Mars.

When a small object impact on the surface of moon or Mars with high speed, the size of crater is large than the earth as out earth has atmosphere.

Final answer:

The largest craters on the Moon and Mercury are larger than those on Earth due to the Moon's and Mercury's geological inactivity, absence of substantial atmosphere, and lower frequency of erosional and tectonic processes. These conditions preserve the craters and allow for the conjecture of an impact origin of these features, as well as provide valuable clues into the historical events of the solar system.

Explanation:

The reason why the largest craters on the Moon and Mercury are much larger than the largest craters on Earth is primarily due to their geological and atmospheric differences. Both the Moon and Mercury are geologically inactive and lack substantial atmospheres. This means that their surfaces are not subjected to the same level of erosional processes present on Earth, like wind and water erosion, or tectonic activities that could erase or alter the appearance of craters over time.

Another important aspect is related to the frequency and scale of impact events. Crater formation rates on the Moon or Mercury can be estimated from the number of craters currently observable or from known quantities of existing cosmic debris (comets and asteroids), which can serve as potential projectiles. Given the extended geological timescales, large crater-forming impacts are relatively rare, occurring at a greater timescale than human history.

Furthermore, the size and shape of these craters often indicate an impact origin, as first proposed by prominent geologist Grove K. Gilbert in the 1890s. High velocity impacts result in explosive events that generate craters much larger than the size of the impacting body itself. Therefore, the size of lunar and Mercurian craters, as well as their count, can provide valuable insights into the history of our solar system.

Learn more about Craters on Moon and Mercury here:

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Answer:

Two lethal elements can combine to form an essential compound for health by undergoing a chemical reaction such that the properties of the individual elements are different from the properties of the product and are no more lethal

Example Mercury and Sulfur combine to form cinnabar which is used as a medicine to relieve pain, antiseptic, and to cure diseases

Mercury and sulfur combines because mercury readily combines with sulfur at high temperatures

Explanation:

Mercury is a lethal element that also has harmful effects on the neurological system

Sulfur is lethal when too much of it is consumed

Answer:

11.7 m/s

Explanation:

In order for the car to remain in circular motion along the road and not to skid, the frictional force between the tires and the road must be equal to the centripetal force.

Therefore, we can write:

where:

m = 2000 kg is the mass of the car

is the coefficient of friction

is the acceleration due to gravity

v is the speed of the car

r = 20.0 m is the radius of the turn

Substituting and solving for v, we find the speed of the car:

Answer:

A flannel shirt is an insulator.

Explanation:

A conductor is a material in which electric current can flow easily. Some examples of conductors include metals, such as copper. In contrast and insulator does not allow electric current to pass through it. Usually non-metallic items are considered good insulators. Imagine if you got shocked and your clothes were conductors! You would get quite a shock.