Questions and answers by

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Questions (34)

When a car uses chemical energy and transforms it to mechanical energy, energy is destroyed in the process.a True b False
1. 2 answers
2. 211 views
What are the two factors that affect the force of gravity between two objects?a Weight and mass b Distance and mass c Mass and
1. 1 answer
2. 99 views
What is mechanical advantage?a The number of times the machine divides the effort force b None of the above c The number of
1. 1 answer
2. 133 views
Use the word bank to complete the following paragraph. **Some words may not be used**There are two types of circuits: series
1. 1 answer
2. 191 views
What is the number of paths through which electricity can flow in a series circuit?a 1 b 2 c 3 d 4
1. 1 answer
2. 99 views
What is the number of paths through which electricity can flow in a series circuit?a 1 b 2 c 3 d 4
1. 1 answer
2. 97 views
What must an object gain or lose to become electrically charged?a protons b electrons c neutrons d nucleus
1. 1 answer
2. 115 views
The diagram shows four different circuits.Which circuit will stop producing light if one bulb burns out? a Circuit 1 b Circuit 2
1. 1 answer
2. 244 views
What happens to the current flowing through a circuit as resistance increases?a It stays the same b It increases c It reverses
1. 1 answer
2. 119 views
Which of the following would be considered a load in a circuit?a switch b battery c lightbulb d wire
1. 3 answers
2. 196 views
Match the scenario to the type of interaction between the particles.Column A 1. Two positive charges are place close together:
1. 3 answers
2. 234 views
Match the property to its unitColumn A 1. Current: Current 2. Resistance: Resistance 3. Voltage: Voltage Column B a.Ampere
1. 1 answer
2. 113 views
What is the effect on the strength of an electromagnet when you increase the number of coils?a The strength increases b The
1. 1 answer
2. 213 views
What three factors affect electric force? Choose all that applya whether the charge is positive or negative b amount of charge c
1. 1 answer
2. 254 views
Imagine a string of holiday lights, with many bulbs connected to each other by wires. One bulb burns out, causing the bulbs next
1. 1 answer
2. 108 views
The diagram shows two circuits.Which statement correctly describes each circuit? a The bulbs in both circuits are connected in
1. 1 answer
2. 155 views
The current running through a circuit is 10 amps from a 5 V battery. Calculate the resistance.a 0.5 Ohms b 50 Ohms c 2 Ohms d
1. 1 answer
2. 172 views
You can decrease resistance by making the wire in a circuit smaller.True False
1. 3 answers
2. 189 views
What is the relationship between voltage and current (assuming the resistance stays the same)?a Voltage does not affect current
1. 1 answer
2. 166 views
What is the minimum mass of water necessary to produce 200. g of sulfuric acid in the following reaction?2SO2 + O2 + 2H2O →
1. 3 answers
2. 160 views
What are two themes in the story “The Gift of the Magi “by O. Henry?
1. 1 answer
2. 500 views
can you make these into poems???EUROPEANS: they probably were wondering why the Taino weren't wearing much clothes and why they
1. 1 answer
2. 310 views
Three interior angles of a quadrilateral have measures of 52∘, 53∘, and 154∘. Find the fourth angle measure.
1. 4 answers
2. 2,327 views
There are 5 options on the dessert menu at a restaurant. Erin and Ellen like all of the choices equally, so they each choose a
1. 4 answers
2. 1,436 views
What is the third quartile, Q3, of the following distribution?10, 25, 18, 31, 16, 27, 5, 13, 32, 24, 15, 21, 18, 18, 24, 4, 8,
1. 4 answers
2. 3,000 views
Lim as x approaches 2 of (x^2-kx+4)/(x^3-8)
1. 1 answer
2. 331 views
Lim as x approaches 2 of (x^2-kx+4)/(x^3-8)
1. 1 answer
2. 374 views
what would be the vapor pressure of water in a solution wiith 23.7g NaCl dissolved in 500mL of water at 50degrees centigrade
1. 1 answer
2. 481 views
Solve the problem.The growth in the population of a certain rodent at a dump site fits the exponential function A(t)=
1. 4 answers
2. 1,121 views
Find the function value.Let f(x) = e3x. Find f(0.06), rounded to four decimal places.
1. 3 answers
2. 444 views
rank the following ionic compounds in order of increasing lattice energy NaF, Csl, CaO
1. 3 answers
2. 3,962 views
Graph the equation in the rectangular coordinate system.-5y = -40 How should the line be going?
1. 13 answers
2. 5,247 views
Decide whether the relation is a function or not{(-4, -8), (-1, 2), (2, -2), (6, 1)}
1. 1 answer
2. 407 views
How much energy is released when 48.5 g of water freezes?
1. 2 answers
2. 989 views