Why are ice skates slippery? The “slippery” nature of ice is generally attributed to the formation of a thin layer of liquid water generated by friction, which for instance allows an ice skater to “surf” on top of this liquid film. Do skates melt ice? A 150-pound person standing on ice wearing a pair of […]
What is the function of hyphae quizlet?
What is the function of hyphae quizlet? The underground hyphae collect water and nutrients from the ground. What is a cluster of hyphae known as? mycelium. a cluster of interwoven mass of hyphae. aids the fungus in eating and reproduction. septa. What are the types of hyphae? There are two main types of hyphae. Septate […]
What are the condition for system to be in mechanical equilibrium?
What are the condition for system to be in mechanical equilibrium? For an object to be in equilibrium, it must be experiencing no acceleration. This means that both the net force and the net torque on the object must be zero. Here we will discuss the first condition, that of zero net force. What two […]
Which techniques is used to determine the grain size of polycrystalline material?
Which techniques is used to determine the grain size of polycrystalline material? Explanation: Positron annihilation technique is used to measure resistivity after quenching, Thermal imaging this technique is used to measure the concentration of vacancy to determine the activation energy for its formation and Photo micrographic technique is used to determine the grain size of […]
Why does my body lose heat so fast?
What is average velocity equal to?
What is average velocity equal to? Average velocity (v) of an object is equal to its final velocity (v) plus initial velocity (u), divided by two. How do you find average velocity and speed? The average speed of an object is defined as the distance traveled divided by the time elapsed. Velocity is a vector […]
What do different ship horns mean?
What do different ship horns mean? One short blast = Changing course to starboard (right) Two short blasts = Changing course to port (left) Three short blasts = Operating in reverse. Five short blasts = Danger signal. Two long blasts = Leaving berth. What does it mean when a ship lists? “Listing” is a nautical […]
Which type of battery is best for smartphone?
Which type of battery is best for smartphone? Lithium ion batteries Which phone has highest battery life? Best battery life phone 2021 Xiaomi Mi 10T Pro. Capacity: 5,000mAh | Official life: not stated | Charging power: 33W. Samsung Galaxy S21 Ultra. Capacity: 5,000mAh | Official life: not stated | Charging power: 25W wired / 15W […]
Is it possible to change the polarity of an electromagnet?
Is it possible to change the polarity of an electromagnet? Yes, we can change the polarity of an electromagnet by reversing the direction of the current. Can electromagnets repel? Electromagnets Repelling an Electromagnet Magnetech opposite pole electromagnets (magnetic pole on each end) can repel each other. There has to be a little air gap between […]
What are 2 types of photoreceptors?
What are 2 types of photoreceptors? Two types of photoreceptors reside in the retina: cones and rods. The cones are responsible for daytime vision, while the rods respond under dark conditions. What is the function of rhodopsin? Rhodopsin, also called visual purple, pigment-containing sensory protein that converts light into an electrical signal. Rhodopsin is found […]