Is NZ sinking or rising? NZ’s landmass overall is rising slowly with an average GIA of around 0.3 mm/year of relative sea level. How many people died in the Wahine sinking? Fifty-one people What happened tangiwai? The Tangiwai disaster occurred at 10:21 p.m. on 24 December 1953 when a railway bridge over the Whangaehu River […]
Why is it difficult to push an empty glass bottle into a tank?
What is the biggest threat to wildlife today?
What is the biggest threat to wildlife today? Wildlife is suffering Some of the biggest threats to wildlife include illegal wildlife trade, habitat destruction, invasive species, pollution, and clime change. Illegal Wildlife Trade: The illegal wildlife trade is the fourth largest criminal industry in the world, after drugs, arms, and human trafficking. What is the […]
What type of muscle tissue contracts the fastest?
What type of muscle tissue contracts the fastest? Skeletal muscles are divided into two muscle fiber types: Slow-twitch (type I) muscle fibers contract more slowly and rely on aerobic metabolism. Fast-twitch (type II) muscle fibers contract more rapidly due to the presence of a faster myosin. Where is muscle tissue found in the body? Muscle […]
What is the normal intensity of sound?
What is the normal intensity of sound? The Threshold of Hearing and the Decibel Scale Source Intensity Intensity Level Threshold of Hearing (TOH) 1*10-12 W/m2 0 dB Rustling Leaves 1*10-11 W/m2 10 dB Whisper 1*10-10 W/m2 20 dB Normal Conversation 1*10-6 W/m2 60 dB What is intensity level? Noun. 1. intensity level – the amount […]
Can mass be lost in a chemical reaction?
What ultrasonic frequency is harmful to humans?
What ultrasonic frequency is harmful to humans? They were based on two basic assump- tions: (a) high audible frequencies (10–20 kHz) may cause annoyance, tinnitus, headache, fatigue and nausea and (b) ultrasound components (over 20 kHz) with high sound pressure level may cause hearing damage. Can ultrasound damage bones? According to the histologic and radiologic […]
What can stop a muscle contraction?
What can stop a muscle contraction? Muscle contraction usually stops when signaling from the motor neuron ends, which repolarizes the sarcolemma and T-tubules, and closes the voltage-gated calcium channels in the SR. Ca++ ions are then pumped back into the SR, which causes the tropomyosin to reshield (or re-cover) the binding sites on the actin […]
When your inside and outside mirrors are properly adjusted Which of the following is true?
When your inside and outside mirrors are properly adjusted Which of the following is true? When you adjust your side mirrors, position your head straight ahead as it you were driving. When your mirrors are properly adjusted, which of the following is true? The rearview mirror will be adjusted allowing you to see as much […]