Category: Physics

Why do a chicken embryo and a cow embryo look very? Why do a chicken embryo and a cow embryo look very similar even though the adults do not? The embryos mutate in utero to form different structures. The genetic makeup of the two species is similar. What evidence of evolution do we use to […]

Is it cruel not to walk your dog? Walking your dog is essential for their health, but not doing it doesn’t make you cruel. You might never do dog walks but instead, spend time together and perform other exercises. Is a 20 minute walk enough for a dog? They have moderate exercise needs with a […]

How far should a senior golfer hit a 7-iron? 133.48 yards How far should you hit a 7-iron? 140 yards How far does Tiger Woods hit a 7 iron? Club Averages According to Golf Digest, Tiger hits the driver an average of 285 yards with carry. His long irons (2- to 4-iron) range from 250 […]

Do egg cartons reduce sound? The various textural ripples and waves of egg carton-shaped materials do not absorb sound waves in their entirety. Instead, they break these sound waves up into multiple frequencies and echo them in various directions, which radically reduces the level of noise production and echo in your room. How can you […]

What are 3 control variables? An experiment usually has three kinds of variables: independent, dependent, and controlled. The independent variable is the one that is changed by the scientist. What is an example of the control group? A simple example of a control group can be seen in an experiment in which the researcher tests […]

What happens if a hot air balloon gets a hole? What happens if a hot air balloon gets a hole? The balloon would fall to the ground. A hot air balloon stays aloft because of buoyancy; warm air is less dense than the air around it, so it rises, pushing the balloon up. How dangerous […]

What types of information should you include in your notes what should you exclude quizlet? What should you exclude? You must include in your notes everything that is relevant to what is the purpose of your note and everything that helps that goal to be achieved. How can you best prepare for taking notes in […]

How many times have gravitational waves been detected? It is the collaboration’s second catalogue of events, following one published in December 2018 describing their first 11 detections. In all, the observation network has now observed 50 gravitational-wave events (see ‘Cosmic clashes’). How will gravitational waves reveal a hidden universe? With gravitational waves we can study […]

Can you start a fire using a convex mirror? e) One cannot start a fire using a mirror, since mirrors form only virtual images. Q.An object is located a distance do = 7.2 cm in front of a concave mirror with a radius of curvature r = 18.1 cm. Can you start a fire with […]

Do plants take oxygen out of water? Oxygen dissolves into water from two sources: the atmosphere and from plants in the water. In the presence of sunlight, these produce oxygen through photosynthesis and release this oxygen into the pond water. At night and on very cloudy days, algae and submerged plants remove oxygen from the […]