Category: Physics

Why do we believe there is dark matter? A sufficiently massive and cold gas cloud can collapse under its own gravity to form stars. By contrast, dark matter cannot lose energy by emitting light. Thus, while conventional matter can collapse into dense objects like stars and planets, dark matter remains more diffuse. Does a parallel […]

Do you have to have a seatbelt on in the backseat? While the law may not mandate that you wear your seat belt as a backseat passenger, it’s still a good idea to buckle up. In response, many states have enacted laws to encourage backseat passengers in vehicles to buckle up their seat belt just […]

Which unit is used to measure milk? One milk bottle contains half liter. The unit for measuring liquids is a liter. Small quantities of a liquid such as medicine are measured in milliliters. The milkman uses different types of cans to measure the milk like 1 l, 500 ml, 200 ml, 100 ml, 50 ml, […]

Which of the following is an intrusive igneous body answers? The correct answer is C batholith. Batholith is an example of intrusive igneous rocks body, it is because , the magma has introduced into pre-existing rock layers. Which of the following is not an intrusive igneous body Brainly? Batholith is the biggest of the intrusive […]

What does a geographer need? Geographers need at least a master’s degree for most positions outside of government. Research positions usually require a master’s degree or doctorate and several years of related work experience. Most geography programs offer courses in physical and human geography, statistics, remote sensing, and GIS. What skills do geographers need? The […]

What is the difference between a large and a small motor unit? A small motor unit is an arrangement where a single motor neuron supplies a small number of muscle fibers in a muscle. Small motor units permit very fine motor control of the muscle. A large motor unit is an arrangement where a single […]

Does running increase mitochondria? Ribosomes, vital players in the synthesis of proteins, also received a boost from exercise – it increased their ability to build mitochondrial proteins, which explains the rise in both mitochondrial function and muscle hypertrophy. How long does it take to increase mitochondria? Mitochondria Density Unlike mitochondria volume, which can be developed […]

Which UK National Park has the most visitors? South Downs National Park What is the newest national park in the UK? South east: New Forest | South Downs The New Forest National Park is celebrated for its ancient woodland and heathland, first given protection by William the Conqueror nearly 1,000 years ago. Which National Park […]

What are the functions of fat-soluble vitamins? Fat-soluble vitamins Nutrient Function Vitamin A (and its precursor*, beta-carotene) *A precursor is converted by the body to the vitamin. Needed for vision, healthy skin and mucous membranes, bone and tooth growth, immune system health Vitamin D Needed for proper absorption of calcium; stored in bones What are […]

What 4 things affect the rate of reaction? There are four factors that affect the rate (speed) of a chemical reaction: temperature. concentration. particle size. use of a catalyst. Which change will cause the greatest increase in the reaction rate? catalyst Why is equilibrium constant not affected by concentration? As detailed in the above section, […]