Category: Physics

How many muscles work together for movement? There are about 600 muscles in the human body. The three main types of muscle include skeletal, smooth and cardiac. The brain, nerves and skeletal muscles work together to cause movement – this is collectively known as the neuromuscular system. What is the most common type of muscle […]

What is the effect of half wave plate on phase retardation? By combining two waveplates whose retardations differ by exactly half a wave, a true half-waveplate is created. The fast axis of one plate is aligned with the slow axis of the other, so that the net retardation is the difference between the two retardations. […]

What are examples of adverse driving conditions? FMCSA Definition The FMCSA defines adverse driving conditions as: “snow, sleet, fog, other adverse weather conditions, a highway covered with snow or ice, or unusual road and traffic conditions, none of which were apparent on the basis of information known to the person dispatching the run at the […]

Which of the following is an important role for fungi in the carbon cycle group of answer choices? Which of the following is an important role for fungi in the carbon cycle? Fungi release fixed carbon back to the environment for plants and photosynthetic organisms to utilize. Why are fungi so important to the carbon […]

Can you see muscle growth in a week? Gaining muscle is a slow process. It can take about three to four weeks to see a visible change. What happens when you start gaining muscle? When your body builds muscles, it burns energy and fat all the time. As your muscle mass increases, the faster your […]

What is the 1 in 4 rule for ladders? The base of the ladder should be placed so that it is one foot away from the building for every four feet of hight to where the ladder rests against the building. This is known as the 4 to 1 rule. At what height do you […]

Is diode on or off? In such a situation, the diode is said to be off or reverse biased. As long as the voltage across the diode isn’t negative, it’ll “turn on” and conduct current…. Ideal Diode Characteristics Operation Mode On (Forward biased) Off (Reverse biased) Voltage Across V=0 V<0 Diode looks like Short circuit […]

How accurate is bat sonar? Bats determine target distance, or range, from the delay of echoes, which is 5.8 ms/m (7-9). In principle, the high center frequency (f c = ≈60 kHz) and wide bandwidth (Δf = ≈80 kHz) of the big brown bat’s FM signals can support very accurate determination of delay (10, 11). […]

How can you obtain magnetic field pattern of a straight current carrying conductor? Expert Answer: Take a thick straight conductor XY and pass it through the centre of a thick cardboard. Pass current through the conductor such that it flows from X to Y. Sprinkle some iron filings on the cardboard and gently tap. These […]

How do you keep fresh bread from getting moldy? Yep — your fridge. By keeping the bread in a cool and dark place, it will last longer and stay fresh. Heat, humidity and light are all bad for bread but great for fungi or mold, so consider your fridge your best bet to keep your […]