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What is the surface gravity of Mars?

Although Mars is smaller than Earth, there are certain elements that these planets have in common, such as they are both terrestrial planets with solid surfaces and have polar caps. The other two terrestrial planets in the solar system are Mercury and Venus.The differences between these planets include their atmospheres, atmospheric pressures, year lengths and surface temperatures. For example, the average temperature on Mars is -81 degrees Fahrenheit, and Earth's average temperature is 57 degrees.

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What is the relationship between motion and a reference point?

When an object is in motion, it means that its position is changing. In other words, the distance of an object from another object is either becoming larger or becoming smaller. A reference point is a point that is considered stationary to which the object in motion can be related to. However, no object is truly stationary, so all motion is relative motion.For instance, a chair that a person is sitting on is typically not said to be in motion, because it is not changing position in relation to the person sitting in it. However, if the reference point changes, then the chair does appear to be i..

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What are examples of current electricity?

Current electricity and static electricity are both electricity because they contain the movement of electrons. Current electricity, also called normal electricity, is what is used on a daily basis to run machines and electronics. It is characterized by low voltage and high current.\nLightning consists of static electricity. This type of electricity is also what produces the shock caused by walking across a rug and then touching a metal object. Static electricity is characterized by high voltage and low current. The name "static" comes from the buildup of charge between two surfaces, which is ..

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What two colors of light drive most of photosynthesis?

Plants use photosynthesis to convert light energy into chemical energy by using light, CO2 and H2O to make sugar. This process is performed in the chloroplast. The chloroplast consists of the stroma, and thylakoids which house chlorophyll, as reported by photosynthesis. Using chlorophyll a, chlorophyll b and carotenoids, the absorption of light is measured by a spectrophotometer. This device then measures the intensity of electromagnetic radiation at different wavelengths. Chlorophyll a, which is the light-capturing pigment, uses more of the violet and reds while chlorophyll b, the accessory p..

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What is the most abundant mineral group?

The chemical formula for the most commonly occurring silicate is (SiO4)4-. The superscript "4-" indicates that it is a negatively charged ion, or anion, with a net negative charge of 4. Referred to as the silicon-oxygen tetrahedron, this anion is the basic building block of the minerals in the silicate group.The additional elements that combine with the silicon-oxygen tetrahedron correspond to the other elements commonly found in the Earth's crust and mantle. These are aluminum, calcium, iron, magnesium, potassium and sodium. Most sedimentary and igneous rocks contain some combination of ..

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What is normal polarity?

The Earth's magnetic poles have reversed multiple times, and predicting a reversal is highly difficult, as the reversals have no specific length or time frame. These reversals can be seen by studying rock layers, particularly those found mid-ocean, which show minerals that display normal and reversed polarity, depending on which side of the ridge the samples are taken from.

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What is Jupiter's surface like?

There are no visible landmasses on Jupiter, and its surface gravity is 2 1/2 times stronger than that of Earth. Colorful clouds of red, brown, yellow and white paint the surface of Jupiter. This includes the Great Red Spot, which is actually a hurricane that has brewed for at least 300 years. The rest of Jupiter experiences high volumes of wind up to 400 miles per hour, and the average temperature is about -234 degrees Fahrenheit.

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What are radio waves used for?

Radio waves help to convey information from one place to another, such as receiving incoming information from television and radio broadcasting networks. Radio waves are also used in radar and navigational devices placed in spacecraft, boats and planes. Long-range signals, for instance, enable astronauts to communicate with stations on Earth. Radio waves help with navigation by accepting signals from global positioning satellites, and in turn transmit information on an object's location.

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Can an object have a varying speed if its velocity is constant?

When an object has a constant velocity, it moves an equal distance in an equal direction over equal periods of time. Both speed and direction are unchanging when an object has constant velocity. It is, however, possible to have an item with constant speed change velocity. Speed is the magnitude of an object's velocity; an object can have constant speed but changing direction. According to Zona Land Education, an example of this is when a car goes around a curve at a constant speed; its velocity changes because its direction changes.

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How do I know if my hamster is dead?

Another way to check if a hamster has passed away it to gently pick up the hamster. A hibernating hamster will be very cold to the touch, but its body will be limp. If a hamster has passed away, the body will be ice cold and it will be stiff and hard to the touch.

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