What is the purpose of dark matter? [+] Dark matter is the most mysterious, non-interacting substance in the Universe. Its gravitational effects are necessary to explain the rotation of galaxies, the motions of clusters, and the largest scale-structure in the entire Universe. Can we see dark matter? Although we cannot see dark matter and we […]
What color flame is srcl2?
What color flame is srcl2? Flame colorants Color Chemical Red Strontium chloride or strontium nitrate Orange Calcium chloride Yellow-green Barium chloride Orange-yellow Sodium chloride (table salt) Can you burn calcium chloride? Calcium chloride is classified as an “irritant”. This means that is causes symptoms ranging from swelling and pain to burns. When you heat calcium […]
What frequencies are dangerous?
What frequencies are dangerous? The most restrictive limits on whole-body exposure are in the frequency range of 30-300 MHz where the RF energy is absorbed most efficiently when the whole body is exposed. For devices that only expose part of the body, such as mobile phones, different exposure limits are specified. What is the range […]
How much power does a 5kW solar system produce per day?
How much power does a 5kW solar system produce per day? 5kW Solar System Details: Produces 5,000 watts of DC (direct current) power. Requires up to 400 square feet of space to produce an estimated 350 to 850 kWh (kilowatt hours) of AC (alternating current) power monthly. Is 5 kW solar enough? On average, a […]
Can the moon crash into Earth?
Can the moon crash into Earth? The Moon will swing ever closer to Earth until it reaches a point 11,470 miles (18,470 kilometers) above our planet, a point termed the Roche limit. Theory dictates they’ll eventually rain down onto Earth’s surface. What would happen if the moon fell? If the Moon did escape from Earth, […]
Which is a major area of study in psychology?
Which is a major area of study in psychology? A psychology major examines the science of human behavior and mental processes. This includes the study of the mind, the brain, and human and animal social interactions. The major touches on many different areas of psychology like social, cognitive, abnormal, personality and developmental. What makes a […]
What are logical absolutes?
What are logical absolutes? The term ‘the logical absolutes’ refers to what are also known as the ‘laws of thought[1]’. Classical philosophers took these laws to be as follows: The law of identity — All things are equal to themselves. The law of non-contradiction — No proposition can both be and not be (the case). […]
Does direction matter measuring momentum?
Does direction matter measuring momentum? Direction does not matter when you are measuring momentum. Momentum can be transferred from one object to another. When objects collide, some momentum is lost. What is the difference between momentum and velocity? As nouns the difference between velocity and momentum is that velocity is (physics) a vector quantity that […]
How does air resistance affect cars?
How does air resistance affect cars? Air friction does not significantly affect a car’s gas mileage. Cars are slowed down when they stir up the air too much. Stirring up the air creates vortices and billows that take energy away from the car. This effect is known as “wake drag”, “pressure drag”, or “form drag”. […]
Is sound a standing wave?
Is sound a standing wave? Standing sound waves open and closed tubes. Sound waves are longitudinal waves in a medium such as air. The loudness or volume of the sound also increases with wave amplitude. In open and closed tubes, sounds waves can exist as standing waves as long as there is at least one […]