Questions and answers by

heyyyyyyy

Questions (68)

Which of the following continents is completely separated from the other continents?(1 point) Responses Europe Europe Australia
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A simple machine increases the distance that a force needs to be applied from 3 meters to 27 meters, and the work done is 216
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How can a simple fixed pulley make a job easier?(1 point)Responses by decreasing the work done by decreasing the work done by
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Use the image to answer the question.A coordinate plane's x-axis ranges from 0 to 8 and its y-axis ranges from negative 4 to 2,
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Use the image to answer the question.A coordinate plane shows a parabola that opens downward. The x-axis ranges from 0 to 15 in
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Use the image to answer the question.A coordinate plane shows an upward-opening parabola with a plotted point. Both axes range
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Graph the equation y=−5(x)2+1. Which of the following statements about the graph is correct?(1 point) Responses The parabola
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Use the image to answer the question.A coordinate plane's axes range from negative 10 to 10 by 1-unit increments. Two rays are
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In order to write the equation for a piecewise linear function shown on a graph, what do you need to determine?(1 point)Response
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Which of the following piecewise functions matches the graph?(1 point) Responses f(x)={−5 if x<0−x+1 if x≥0 f left
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Graph the piecewise function f(x)={x+5 if x≤−22x+3 if x>−2. Will the graph have any open endpoints? If yes, where?(1
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It is believed that the science of geography originated with each of the following groups except the(1 point) Responses British.
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This early group was the first to use rational thought or logic while investigating the physical world.(1 point) Responses
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Ptolemy incorporated topography into his maps, which means that(1 point) Responses the political boundaries would appear on the
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The earliest world map ever found was(1 point) Responses carved onto a Chinese stone tablet that emphasized direction due to the
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China’s greatest contribution to geography was(1 point) Responses the compass. the compass. the globe. the globe. its
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The Greek-derived word “geography” means(1 point) Responses to draw a map. to draw a map. the study of land. the study of
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He developed the science of geography, although he was better known for his contributions to mathematics.(1 point) Responses
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A car applies a force of 36.8 Newtons for a 668-meter loop; what was the work done?(1 point)Responses 18.2 J 18.2 J 24,600 J
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A force of 57.1 Newtons is applied for 0.977 meters; what work was done on the object?(1 point)Responses 56.1 J 56.1 J 58.4 J
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If W=F×d, which of the following equations shows work being calculated using the correct units?(1 point) Responses 113 N=(17.4
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What is the mathematical relationship between force and work?(1 point)Responses W=F×d W=F×d W=F×a W=F×a W×d=F W×d=F W=Fd
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In a closed system, an object with a mass of 10 kg moves at a velocity of 5.4 m/s. It collides with a second object that has a
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One object is traveling northeast with a momentum of 12 kg-m/s, while a second object is traveling southwest on the same path as
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A football kick returner catches the ball just as a player from the opposing team dives to tackle him. At the time of impact,
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Newton’s cradle is a contraption where metal balls hang from a frame. When one ball is pulled and released, the collision
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Calcium oxide and carbon dioxide combine to form calcium carbonate in the reversible reaction:CaO + CO2 ⇌ CaCO3 When the
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Two workers are pushing on the same large crate. One worker pushes east with a force of 875 N, while the other worker pushes
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Use the graph to answer the question.A velocity versus time line graph. Which statement about the object represented in the
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Use the equation of motion to answer the question.x=x0+v0t+12at2 An object has a starting position of x = 2 m, a starting
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Use the graph of an object’s velocity over time to answer the question.An illustration shows the velocity versus time graph.
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Which statement is true about speed and velocity?(1 point)Responses Both speed and velocity are scalar quantities. Both speed
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A rocket motor is used for different model rockets that have different masses. The results of tests for a rocket motor are shown
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During a game of tug-of-war, two students are pulling on a rope. One student pulls to the left with a force of 35 N, while
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Which type of decay is a form of nuclear fission?(1 point)Responses beta-plus decay beta-plus decay alpha decay alpha decay
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Which statement accurately describes nuclear fission? (1 point)Responses Fission is a process in which an unstable nucleus
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Which statement about the number of protons and neutrons in a nuclear change is correct?(1 point)Responses The total charge
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Use the generalized equation to answer the question.A + BC → B + AC Which type of reaction is modeled by the equation? (1
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Which generalized equation represents a double-replacement reaction?(1 point)Responses A + B → AB A + B → AB AB → A + B AB
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Molecules that are made up of two of the same atom have nonpolar covalent bonds. Which statement best explains this property?(1
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Under certain conditions, water can be separated into oxygen and hydrogen gases according to the equation 2H2O → 2H2 + O2.In a
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Use the periodic table to answer the question.An illustration shows the periodic table of elements. Which of the following
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Use the periodic table to answer the question.An illustration shows the periodic table of elements with elements arranged in
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How do temperature changes lead to solubility changes for salt dissolved in water?(1 point)Responses High temperatures mean more
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Which example accurately describes a solution? (1 point)Responses Polar sugar molecules dissolve in water, which is polar. Polar
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Use the image of chlorophyll to answer the question.An illustration shows the structure of the chlorophyll molecule as a long
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Hydrogen is in Group 1 of the periodic table. Which kind of bond would form between two hydrogens?(1 point)Responses An ionic
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How did the study of the atom contribute to our understanding of the periodic table of the elements?(1 point)Responses Elements
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The Man Without a CountryHackett, Walter (adaptation) Characters NARRATOR COLONEL AARON BURR LT. PHILIP NOLAN PROSECUTOR DEFENSE
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Midsummer Night's Dreamby William Shakespeare OBERON: Having once this juice, I’ll watch Titania when she is asleep, And drop
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Use the paragraph to answer the question.Sylvia woke up exactly when she should have been walking out the door to the bus stop.
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Use the paragraph to answer the question.Practically everyone in the school had come to the game. Katya felt their eyes on her
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How can a writer effectively use the technique of setting out a problem in a narrative hook?(1 point)Responses Make the problem
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Yamanba of the Mountainby Cathy Spagnoli No one spoke. Even the bravest men and women were silent. Everyone had helped to make
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The group opted to make a video blog about baking for their final assignment. They started the camera, and Ben announced that
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Use the paragraph to answer the question.The leafless trees were like plain toothpicks sticking out of a flavorless pastry. Cars
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Use the paragraph to answer the question.Look, to make a truly remarkable sandwich you must go full scientist. Toast the bread
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Use the sentence to answer the question.The bed whined when I climbed out of it—as reluctant to let go of me as I was to let
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Use the story to answer the question.What motivates Cora to forgive Roky? Select the two correct answers. (1 point) Responses
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Which setting would best support a main character’s terrible, angry mood?(1 point )Responses a coffee shop on a fall morning a
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Big Waterby Andrea Curtis Henry and Eva fold the sails and get out oars. We are bumping up against the stone-filled cribs of a
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Use the sentence to answer the question.The students were late to the meeting. Which revisions would make the sentence more
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Epidemiology’s Fight Against Ebolaby Carol Hand Emile was a two-year-old boy living in Meliandou, a village in the West
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Use the sentence to answer the question.My dog insists that I throw the tennis ball by barking and jumping up and down. What
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Use the sentence to answer the question.I chose the drapes, wallpaper, and rug for the new room. Which sentence conveys the same
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Use the description to answer the question.A writer is creating a guide to help children learn how to take care of their first
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Use the paragraph to answer the question.Humans have observed the stars twinkling in the sky since the beginning of recorded
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"Biodegradable Plastic Bags, Not So Biodegradable"by Vicky Stein The average person uses a typical plastic bag for as short a
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