What is the typical stopping distance at 30mph? Stopping distances at different speeds Speed Thinking + braking distance Stopping distance 20mph 6m + 6m 12m (40 feet) 30mph 9m + 14m 23m (75 feet) 40mph 12m + 24m 36m (118 feet) 50mph 15m + 38m 53m (174 feet) Do you need to know stopping distances? […]
Why does current change from positive to negative?
Why does current change from positive to negative? The direction of an electric current is by convention the direction in which a positive charge would move. Thus, the current in the external circuit is directed away from the positive terminal and toward the negative terminal of the battery. Electrons would actually move through the wires […]
What is the formula for calculating future value?
What is the formula for calculating future value? You can calculate future value with compound interest using this formula: future value = present value x (1 + interest rate)n. To calculate future value with simple interest, use this formula: future value = present value x [1 + (interest rate x time)]. How do you figure […]
What is intrusive igneous rocks?
What is intrusive igneous rocks? Intrusive, or plutonic, igneous rock forms when magma is trapped deep inside the Earth. Intrusive rocks have a coarse grained texture. Extrusive Igneous Rocks: Extrusive, or volcanic, igneous rock is produced when magma exits and cools above (or very near) the Earth’s surface. What are the two major properties used […]
Do fruit Mentos work with Coke?
Do fruit Mentos work with Coke? The trick works with any carbonated beverage. It works with regular cola, orange soda, root beer, etc. It’s actually very cool when performed with tonic water under a black light because you get a glowing blue fountain. However, you can use seltzer water (very easy cleanup) or any soda.. […]
What factors affect air resistance?
What factors affect air resistance? The amount of air resistance an object experiences depends on its speed, its cross-sectional area, its shape and the density of the air. Air densities vary with altitude, temperature and humidity. Which of the following is an effective way to reduce drag force? Designing a more streamlined shape and reducing […]
What are the 7 stages of grief?
What are the 7 stages of grief? The 7 stages of grief Shock and denial. This is a state of disbelief and numbed feelings. Pain and guilt. Anger and bargaining. Depression. The upward turn. Reconstruction and working through. Acceptance and hope. What are the four stages of grieving? Four Phases of Grief: grieving the loss […]
Is current stronger in series or parallel?
Is current stronger in series or parallel? In a parallel circuit, the potential difference across each of the resistors that make up the circuit is the same. This leads to a higher current flowing through each resistor and subsequently the total current flowing through all the resistors is higher. Why current is minimum in series? […]
How can you tell if something is quartz?
How can you tell if something is quartz? Quartz crystals rank as 7 on the Mohs scale. Therefore, a piece of quartz crystal will scratch a piece of glass. Test the unknown stone under inspection by trying to scratch a common piece of glass such as a glass bottle. If the object easily scratches the […]
What objects are translucent?
What objects are translucent? Examples of translucent objects also include everyday materials. frosted glass shower door. tinted car window. sunglasses. wax paper. single piece of tissue paper. vegetable oil. sauteed onions. How does light interact with translucent objects? Translucent objects allow some light to travel through them. Materials like frosted glass and some plastics are […]