Physical Universe
16th Edition
ISBN: 9780077862619
Author: KRAUSKOPF, Konrad B. (konrad Bates), Beiser, Arthur
Publisher: Mcgraw-hill Education,
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 6, Problem 46E
To determine
The average current drawn by the bus during the acceleration.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
the heating element of an electric cooker operates at 230.0V and carries a current 4.20 A. Assuming the watwr absorbs all the energy from the resistor, how much water (in kilograms) can it heat a room temperature of 23°C to the boiling point in 5 minutes? The specific heat of water is 4186 J/(kg°c)
ASAP
Your baby sister's toy car has an effective energy conversion efficiency of 47.1%, which means that 47.1% of the electric energy
given to the motor can be converted to translational kinetic energy. The mass of the car is 0.836 kg and powered by one 9V
battery (9.00 V). Determine the average current supplied to car's motor, if from initially at rest the car reaches a speed of
2.89 m/s after 7.88 s.
average current:
Amps
Chapter 6 Solutions
Physical Universe
Ch. 6 - The charge on an electron a. is 1 C b. depends on...Ch. 6 - A positive electric charge a. attracts other...Ch. 6 - A positively charged rod is brought near an...Ch. 6 - Protons and electrons have different masses. When...Ch. 6 - Coulombs law for the force between electric...Ch. 6 - The electric force between a proton and an...Ch. 6 - An atom consists of a a. uniform distribution of...Ch. 6 - Prob. 8MCCh. 6 - An object has a positive electric charge whenever...Ch. 6 - A solid conductor is one a. whose electrons are...
Ch. 6 - Prob. 11MCCh. 6 - Match each of the electrical qualities listed...Ch. 6 - Electric power is equal to a. (current)(voltage)...Ch. 6 - The electric energy lost when a current passes...Ch. 6 - When a magnetized bar of iron is strongly heated,...Ch. 6 - All magnetic fields originate in a. iron atoms b....Ch. 6 - The force on an electron that moves in a curved...Ch. 6 - Magnetic field lines provide a convenient way to...Ch. 6 - In a drawing of magnetic field lines, the weaker...Ch. 6 - Prob. 20MCCh. 6 - Prob. 21MCCh. 6 - Prob. 22MCCh. 6 - Prob. 23MCCh. 6 - Prob. 24MCCh. 6 - Prob. 25MCCh. 6 - Prob. 26MCCh. 6 - Prob. 27MCCh. 6 - A generator is said to generate electricity. What...Ch. 6 - Prob. 29MCCh. 6 - Prob. 30MCCh. 6 - If 105 electrons are added to a neutral object,...Ch. 6 - A positive and a negative charge are initially 4...Ch. 6 - The force between two charges of 3 109 C that are...Ch. 6 - Five joules of work are needed to shift 10 C of...Ch. 6 - When the voltage across a certain resistance is V,...Ch. 6 - The voltage needed to produce a current of 5 A in...Ch. 6 - The resistance of a lightbulb that draws a current...Ch. 6 - The current in a 40-W, 120-V electric lightbulb is...Ch. 6 - A cars storage battery is being charged at a rate...Ch. 6 - A 120-V, 1-kW electric heater is mistakenly...Ch. 6 - A 240-V, 1-kW electric heater is mistakenly...Ch. 6 - Prob. 42MCCh. 6 - What reasons might there be for the universal...Ch. 6 - Electricity was once thought to be a weightless...Ch. 6 - A plastic ball has a charge of +1012 C. (a) Does...Ch. 6 - Why does the production of electricity by friction...Ch. 6 - Prob. 5ECh. 6 - Compare the basic characters of electric and...Ch. 6 - Find the total charge of 1 g of protons.Ch. 6 - Is there any distance at which the gravitational...Ch. 6 - When two objects attract each other electrically,...Ch. 6 - How do we know that the force holding the earth in...Ch. 6 - A hydrogen molecule consists of two hydrogen atoms...Ch. 6 - A charge of +2 107 C is 10 cm from a charge of 6 ...Ch. 6 - A charge of +3 109 C is 50 cm from a charge of 5 ...Ch. 6 - Two charges repel each other with a force of 0.1 N...Ch. 6 - Two charges originally 80 mm apart are brought...Ch. 6 - Two small spheres are given identical positive...Ch. 6 - (a) A metal sphere with a charge of +1 105 C is...Ch. 6 - Suppose the force between the earth and the moon...Ch. 6 - How far apart are two charges of +1 108 C that...Ch. 6 - How is the movement of electricity through air...Ch. 6 - One terminal of a battery is connected to a...Ch. 6 - Why do you think bending a wire does not affect...Ch. 6 - What basic aspect of superconductivity has...Ch. 6 - Sensitive instruments can detect the passage of as...Ch. 6 - (a) The capacity of a battery is usually quoted in...Ch. 6 - The energy stored in a certain 12-V battery is 3...Ch. 6 - The potential difference between a cloud and the...Ch. 6 - (a) A person can be electrocuted while taking a...Ch. 6 - How much current is drawn by a 240-V water heater...Ch. 6 - Prob. 30ECh. 6 - Prob. 31ECh. 6 - A fuse prevents more than a certain amount of...Ch. 6 - Should a fuse be connected in series or in...Ch. 6 - Heavy users of electric power, such as large...Ch. 6 - How are the terminals of a set of batteries...Ch. 6 - Prob. 36ECh. 6 - (a) If a 75-W lightbulb is connected to a 120-V...Ch. 6 - Prob. 38ECh. 6 - Prob. 39ECh. 6 - Prob. 40ECh. 6 - Prob. 41ECh. 6 - Prob. 42ECh. 6 - Prob. 43ECh. 6 - Prob. 44ECh. 6 - A 1.35-V mercury cell with a capacity of 1.5 A h...Ch. 6 - Prob. 46ECh. 6 - Prob. 47ECh. 6 - Prob. 48ECh. 6 - Prob. 49ECh. 6 - A current flows west through a power line. Find...Ch. 6 - Prob. 51ECh. 6 - Prob. 52ECh. 6 - Two parallel wires carry currents in the same...Ch. 6 - Prob. 54ECh. 6 - A current-carrying wire is in a magnetic field....Ch. 6 - Prob. 56ECh. 6 - Prob. 57ECh. 6 - Prob. 58ECh. 6 - Prob. 59ECh. 6 - Prob. 60ECh. 6 - Prob. 61ECh. 6 - Prob. 62ECh. 6 - Prob. 63ECh. 6 - Given a coil of wire and a small lightbulb, how...Ch. 6 - Prob. 65ECh. 6 - Prob. 66ECh. 6 - A transformer rated at a maximum power of 10 kW is...Ch. 6 - An electric welding machine uses a current of 400...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- An electric dryer consumes 6.0 x 106 joules of energy when operating at 220 volts for 30 minutes. During operation, the dryer draws a current of approximately?arrow_forwardThe heating element of a coffeemaker operates at 120 V and carries a current of 2.50 A. Assuming the water absorbs all of the energy converted by the resistor, calculate how long it takes to heat 0.740 kg of water from room temperature (23.0°C) to the boiling point. minarrow_forwardA power plant supplies a current of 4.80 × 10² A at 545 kV. After being transmitted down a few kilometers of power lines with a total resisance of 2.50 × 10² Q, what percentage of the generated power will be lost to resistive heating? 9.77 Power loss: % Incorrectarrow_forward
- The maximum power consumption of an air fryer is 1500 W. If it is connected to a 220-V line, (a) how much current flows in the appliance and (b) how much does it cost per month if it operates 2.0 h per day and the electric company charges P9. 6467 per kwh?arrow_forwardAssuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the 12.0-V batteries of a 828-kg electric car be able to supply to do the following? (a) accelerate from rest to 25.0 m/s in 1.00 min 378.3 A. (b) climb a 200-m high hill in 2.00 min at a constant 25.0 m/s speed while exerting 433 N of force to overcome air resistance and friction 1.94e3 In this case, 95% of the power supplied by the motor goes into increasing the potential energy and into the work done against air friction. How is work done related to the applied force and distance traveled? Aarrow_forwardIn the evening, the student turns on a 38-W table lamp, plugs in a 167-W computer to study physics, and uses a 501-W coffee maker to make some hot coffee to keep awake. What is the overall current in this student's room, in Ampere?arrow_forward
- An electric device connected to 220 v draws a current of 4.55 A . It is operated 8 hours a day. If electric energy costs Php 10.25 / kwHr, how much would it cost to operate the device in 30 days?arrow_forwardDy 3. An extension cord made of two wires of diameter 0.129 cm (no. 16 copper wire) and of length 2.7 m is connected to an electric heater which draws 18.0 A on a 240 V line. One wire takes current to the heater, the other acts as the return. How much power is dissipated in the cord? (a) 56 mW (b) 5.6 W (c) 22 W (d) 4.3 kWarrow_forwardIn an experiment to measure the heat released by the combustion of a sample of nutrient, the compound was burned in a calorimeter and the temperature rose by 3 .22 ° C (the same as 3.22 K, because degrees Celsius are the same size as kel vins). When a current of 1.23 A from a 12.0 V sourceflows through a heater in the same calorimeter for 156 s, the temperature rose by 4.47 °c (which can be interpreted as 4.47 K). What is the heat output of the combustion reaction?arrow_forward
- An electrical heating coil is immersed in 3.52kg of water at 22C. The coil, which has a resistance of 230 ohms warms the water to 32C in 3.5 min.At what potential difference does the coil operate?arrow_forwardConsider an electron moving at a speed of 5.48 105 m/s in a circular path, of radius 2.12 10-10 m, around a proton. What is the effective current, in mA, associated with this orbiting electron?arrow_forwardA 1250 W radiant heater is constructed to operate at 115 V. (a) What is the current in the heater when the unit is operating? (b) What is the resistance of the heating coil? (c) How much thermal energy is produced in 1.0 h?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Ohm's law Explained; Author: ALL ABOUT ELECTRONICS;https://www.youtube.com/watch?v=PV8CMZZKrB4;License: Standard YouTube License, CC-BY