10. -11 points SerPSE 10 26.4.OP.011. My Notes Ask Your Teacher A physics student is studying...
nand a cross sectional area of 0.270 mm2. If the resistivity of copper is 1.70 x 10 m and a potential difference of 0.500 V is maintained across its lenqth, determine the current in has a length of 1.50 the wire (In A) Need Help? Read It -1 points SerPSE10 26.3.0P010 M Ask Your Teacher My Notes f the magnitude of the drift velocity of free electrons in a copper wire i 10 m/s. what the electric field in the...
16. [-/1 Points] DETAILS SERPSE 10 36.5. OP.019.MI. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) An air wedge is formed between two glass plates separated at one edge by a very fine wire of circular cross section as shown in the figure below. When the wedge is illuminated from above by 600 nm light and viewed from above, 30 dark fringes are observed. Calculate the diameter d of the wire (in um). um (b) What If? How many dark...
5. (-/6 Points) DETAILS SERPSE 10 4.6.P.033 MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A farm truck moves due east with a constant velocity of 14.50 m/s on a limitless horizontal stretch of road. A boy riding on the back of the truck throws a can of soda upward (see figure) and catches the projectile at the same location on the truck bed, but 19.0 m farther down the road. (a) In the frame of reference of the truck, at...
8. [-14 Points] DETAILS SERPSE10 30.1.OP.008.CTX. MY NOTES ASK YOUR TEACHER You are a technician at an MRI center. One day some medical students enter your lab for a training session. One of them asks about metal in the MRI room, and you clearly state that that is a dangerous situation. The questioner does not look convinced, so you provide the following example. Suppose a woman enters the MRI machine and has forgotten to remove a silver choker necklace. The...
2. -/4 points SerCP11 10.3.OP.012. B My Notes + Ask Your Teacher A rod with a length of 1.6 m is made of aluminum, which has a coefficient of linear expansion of 2.40 x 10-5 (°C)-1. It is initially at a temperature of 35°C. (a) What is the change in length of the rod if the temperature drops to 0.0°C? (Give the absolute value in units of mm.) mm (b) How does the rod's length change with lower temperature? The...
2. -/4 points SerCP11 10.3.OP.012. B My Notes + Ask Your Teacher A rod with a length of 1.6 m is made of aluminum, which has a coefficient of linear expansion of 2.40 x 10-5 (°C)-1. It is initially at a temperature of 35°C. (a) What is the change in length of the rod if the temperature drops to 0.0°C? (Give the absolute value in units of mm.) mm (b) How does the rod's length change with lower temperature? The...
My Notes Ask Your Teacher 1 2/3 points | Previous Answers An experimenter is studying the effects of temperature, pressure, and type of catalyst on yield from a certain chemical reaction. She considers 7 different temperatures, 5 different pressures, and 8 different catalysts. (a) If any particular experimental run involves the use of a single temperature, a single pressure and, a single catatyst, how many experimental runs are possible? 280 ways (b) How many experimental runs are there that involve...
| 10. + -1 points ChangWA12 6.СМ.011. My Notes Ask Your Teacher The combustion reaction of butane is as follows. C4H10(9)13/2 02(9)-4 CO2(g) 5 H20(0) Using Hess's law and the reaction enthalpies given below, find the change in enthalpy for this reaction. reaction (1): C(s) + O2(g)-. CO2(g) reaction (2): 21/2 02(9) H20UAH--285.8 kJ/mo reaction (3): 4 C(s) + 5 H2(g)- + C4H10(g) H-_1257 krmol H--393.5 kJ/mol kJ/mol Supporting Materials Periodic Table Constants and Factors Supplemental Data
If all questions can be answered thank you! 5. [-/1.42 points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Residential building codes typically require the use of 12-gauge copper wire (diameter 0.205 cm) for wiring receptacles. Such circuits carry currents as large as 20.0 A. If a wire of smaller diameter (with a higher gauge number) carried that much current, the wire could rise to a high temperature and cause a fire. (Table of resistivities) (a) Calculate the rate at...
19. [-13 Points] DETAILS SERPSE10 29.1.OP.003.CTX. MY NOTES ASK YOUR TEACHER You are performing studies of the possibility of migrating birds using the Earth's magnetic field for navigation. To modify the magnetic field in the brain of a bird, you fit the bird with coils as "caps" and "collars" as shown in the figure below. The data on the coils indicate that they each have 210 of resistance, a radius of 1.20 cm, and 50 turns of wire. The centers...