Answered: 1. A car battery transfers 60.0 J of…

1. A car battery transfers 60.0 J of energy to 5.00 C of electrons to light up the headlight of a car. What was the voltage of the battery?

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I need help so I can check my son's work. The problem: Simplify the mathematical expressions to determine the product or quotient in scientific notation. {1} 3.1×10^6 {2} 3.6×10^-1 {3} 4.2×10^-1 {4} 5.3×10^-6 Match to: {A} (3.8×10^3)×(9.4×10^-5) {B} (4.2×10^7)×(7.4×10^-3) {C} (8.6×10^-6)×(7.1×10^-9) --------------------------------- (4.1×10^-2)×(2.8×10^-7) {D} (6.9×10^-4)×(7.7×10^-6) --------------------------------- (2.7×10^-2)×(4.7×10^-7) **Repeated Dashes represent fractions***
In the previous question, it was necessary to perform the following steps. Select all that apply. Hint: Incorrect responses will be penalised. Convert units by multiplying by 3600. Convert units by dividing by 3600. Convert units by dividing by 1000. There is no need to convert units because the mass is in kg. Convert units by multiplying by 1000.
HW help! IF NEEDED Please include a frame of reference! All variables should be defined and constant quantities included. Please put units in the equations. Please justify the answers . And only use the formulas from the givens. PLEASE SHOW ALL THE WORK CLEARLY! THANK YOU SO MUCH!!
This answer includes t which is not a variable provided, please answer in terms of the specified variables.
One mole of Gold (Au) atom has a mass of 197 g. We know that the density of gold is 19.30 g/cm3 in room temperature. Using those numbers, answer the following questions: a) What is the mass of a single gold atom in kg? b) Assume that gold atoms sit in a perfect cubic crystal structure. Estimate the distance between two gold atoms in meters. c) If we have a gold cube of 6 cm on each side, how many atoms can we fit along the edge of each side of the cube? d) What would be the mass, in kilograms, of the gold cube we discussed in part (c) (measuring 6 cm on each side)?
Explain the difference between a rate of change that is positive and one that is negative. Give an example of each. O Consider the ordered pair (x, y) where x is the independent variable and y is the dependent variable. If y increases with the increase in x, then the rate of change of y is positive. Whereas, if y decreases as x increases, then the rate of change is negative. For example, if you consider the speed of a car (y) over time (x), as the car accelerates, the speed increases with increasing time, and the rate of change of its speed is positive. When the car brakes, the rate of change of its speed is negative, because the speed decreases over time. Consider the ordered pair (x, y) where x is the independent variable and y is the dependent variable. If y increases with a decrease in x, then the rate of change of y is positive. Whereas, if y decreases as x decreases, then the rate of change is negative. For example, if you consider the speed of a car (y) over time (x), as the car…
I am not sure how to start these problems as I am given very limited information and am told that I have everything I need to complete them. We are given these equations as well to use for the problem.
Responses should be as simple as possible, and in typed form, with all applicable units, following a clear and straightforward logical structure. NO hand-drawn explanations are allowed. Ensure the appropriate use of significant figures, and when applicable, employ the "variable space" framework for providing answers.
Create a C++ program for managing a grocery store's Inventory system. The Inventory information is stored in a text file named "grocery inventory.txt." Each line in the file represents a grocery item with the following format: "SKU, Name, Category, Quantity Price" The program should allow the user to add new items, update the quantity of existing Items, and display the total value of the inventory. Ensure that the program checks for the existence of "grocery inventory.txt" and handles cases where the file is empty. Utilize functions to organize your code effectively, with comments explaining each function's purpose. You can use data structures like arrays or structs to store and manipulate inventory data. The program should output the updated inventory information to a file named "updated_grocery_Inventory.txt." Ex: grocery Inventory.txt: 101, Apples, Fruits, 50, 0.75 102, Bread, Bakery, 20, 2.50 103, Milk, Dairy, 30, 3.99 (updated grocery inventory.txt after adding 100 packs of Eggs…
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An Olympic-size swimming pool is 50 m long, 25 m wide, and 2 m deep. In terms of volume, this pool, when full, holds how many kilogallons of water? Use the following equivalences: 1 gallon = 3.8 L 1 kilogallon = 103 gallon 1 L = 103 mL for water: 1 mL = 1 cm3 1 m = 100 cm [Numerical Problem: Just write the numerical answer without units. Express your answer to 2 significant figures in standard notation]