Estrella Torres

Questions and answers by Estrella Torres

Questions (246)

Consider the sequence −5,0,5,10,15,…. What is the explicit rule for the sequence in simplified form? Enter your answer in
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Samuel Gompers had the same goals for the labor movement as the socialists and anarchists did.
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By the 1930s, the labor movement had achieved its goals so there was no more need for labor unions. As a result, labor unions do
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Which sentence best describes Mother Jones?Responses She was a labor activist who demanded child labor laws. She was a labor
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A line passes through (−1, 7) and (2, 10).Which answer is the equation of the line? Responses −3x+y=16 negative 3 x plus y
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There are 3 in. of snow on the ground when it begins to snow 0.5 in/h .Which linear equation represents the total depth of the
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Which answer is an equation in point-slope form for the given point and slope?Point: (5, 9); Slope: 2 Responses y−5=2(x+9) y
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Which statement about exothermic reactions is true?Responses The reactants create energy to form products. The reactants create
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Which chemical formula shows an ionic compound?Responses NaCl upper case N lower case a upper case C lower case l CO2 upper case
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How do ionic bonds differ from covalent bonds?Responses Protons are transferred in an ionic bond. Protons are transferred in an
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What is a substance said to be if it evaporates easily?
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Which choice can be classified as a pure substance?
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Which choice can be classified as a pure substance?Responses compound compound homogeneous mixture homogeneous mixture solution
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Which term do these characteristics describe?The substance is mixed uniformly throughout and each part of the substance contains
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Which property do solutions with high pH values have?
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Which property do solutions with high pH values have?Responses tastes sour tastes sour gives off hydrogen gas when reacted with
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Which situation is the best example of translational motion?Responses a powered up rocket on the launch pad a powered up rocket
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As a surfer ride is seen riding a wave toward the shoreline, what is the shoreline?Responses reference point reference point
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Which example provides a complete scientific description of an object in motion?Responses The hockey player sent the puck flying
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Which situation describes the best example of rotational motion?Responses The wheel spins as long as the hamster keeps running.
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What information must a person have if they are asked to determine an object's speed?Responses distance and direction distance
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It takes a car 1.75 h to go from mile marker 10 to mile marker 115.What is the average speed of the car? Responses 1.6 mph 1.6
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It takes a bus driver 30 minutes to pick up students from four stops. The last stop is at the corner of Green Street and Route
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A vehicle of known mass accelerates along a straight path.What cased this acceleration, according to Newton's second law of
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What force is needed to give a 4.5 kg bowling ball an acceleration of 9 m/s2?Responses 0.5 N 0.5 N 2 N 2 N 36.5 N 36.5 N 40.5 N
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Acceleration is defined as the rate of change for which characteristic?Responses velocity velocity position position
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What happens when a penny is dropped from a height of 20 meters?Responses It changes direction every 9.8 meters. It changes
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What is the mass of a cannonball if a force of 2,500 N gives the cannonball an acceleration of 200 m/s2?Responses 12.5 kg 12.5
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Which statement accurately describes a balanced force?Responses A 25-N force acts on the left side of the marble at the same
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If the net force on a 75-N object is 375 N from the left, in what direction will the object move?Responses toward the left
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A speedboat travels from the dock to the first buoy, a distance of 20 meters, in 18 seconds. It began the trip at a speed of 0
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A 150-kg object takes 1.5 minutes to travel a 2,500-meter straight path. It begins the trip traveling 120 meters per second and
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Which statement most completely describes an object's motion?Responses A car travels 25 miles. A car travels 25 miles. The rain
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Which pieces of information are necessary to describe an object's motion?Responses position, direction, and speed position,
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Which statement is a scientifically accurate description of velocity?Responses With just two second left on the clock, the
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A car traveled at an average speed of 60 mph for two hours.How far did it travel? Responses 30 miles 30 miles 60 miles 60 miles
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A cyclist rode at an average speed of 10 mph for 15 miles.How long was the ride?
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Amy gets up from her seat on a train to move closer to the front. Just as she begins to walk forward, the train stops at a
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Which characteristic does inertia describe?Responses how fast an object is moving how fast an object is moving how large an
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What is the best description of the acceleration of an object?Responses A remote-control car speeds up from 0 m/s to 15 m/s. A
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A rock falls off a cliff and hits the ground after three seconds. The rock's velocity is 29.4 m/s when it hits the ground.What
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Amy has a mass of 30 kg, and she is riding a skateboard traveling 5 meters per second.What is her momentum?
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What is it known as when a force is applied to an object for an amount of time?Responses inertia inertia acceleration
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A bowling ball has a mass of 5 kg.What happens to its momentum when its speed increases from 1 m/s to 2 m/s?
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A bowling ball has a mass of 5 kg.What happens to its momentum when its speed increases from 1 m/s to 2 m/s? Responses The
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A baseball is traveling (+20 m/s) and is hit by a bat. It leaves the bat traveling (−30 m/s).What is the change in the
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A basketball has a mass of 1 kg and is traveling 12 m/s.What would happen to the velocity if the momentum of the basketball were
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A basketball has a mass of 1 kg and is traveling 12 m/s.What would happen to the velocity if the momentum of the basketball were
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A student is riding on a school bus and suddenly get thrown forward.What did the bus just do? Responses The bus is going forward
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What two aspects of a force do scientists measure?Responses magnitude and direction magnitude and direction position and size
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When an object moves, stops moving, changes speed, or changes direction, how do scientists describe that condition?Responses a
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What is the force that every mass exerts on every other mass called?Responses gravity gravity matter matter weight weight pull
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An object is transported to three different planets in the solar system.Which statement is true about that object? Responses The
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What did Isaac Newton’s investigations of gravity explain?Responses The sun is more massive than earth. The sun is more
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What should be done in order to increase the gravitational force between two objects?Responses Increase the distance between the
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Which statement did Kepler’s investigations of the movement of the planets explain?Responses Jupiter has more moons than
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Which statement is a correct statement of Newton's second law?Responses Every action has an equal and opposite reaction. Every
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The object in this diagram has a mass of 4 kg.According to this diagram, what is the acceleration of this object? Responses 0
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What forces are present in this situation?An elevator is rising at a constant speed; the elevator is the object in this
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What should a free-body diagram look like for a skydiver that is still speeding up as he falls?Responses There is an arrow up
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What does the law of the conservation of momentum state?Responses When two objects collide, they will each keep their initial
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When a bullet is fired from a gun, what is true about the momentum?Responses The bullet and gun have equal momenta in opposite
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What makes some collisions elastic and others inelastic?Responses If the collision involves sticking together, it is elastic. If
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How is momentum conserved in a Newton's cradle when one steel ball hits the other?Responses Both balls have momentum to start,
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How is momentum conserved when the big rolling ball hits the smaller rolling ball?Responses Momentum is not conserved when the
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How can you tell if an object has elastic properties?Responses If two people pull on it in opposite directions, it stretches.
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In Hooke's law, Fspring=kΔx, what does the k stand for?Responses the amount of force acting on the spring the amount of force
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In Hooke's law, Fspring=kΔx, what does the Fspring stand for?Responses the elastic constant, a number that tells the relative
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There are four springs stretched by the same mass. Spring A stretches 25 cm. Spring B stretches 10 cm. Spring C stretches 100
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There are four springs stretched by the same mass. Spring A stretches 25 cm. Spring B stretches 10 cm. Spring C stretches 100
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A football player kicks a ball with a mass of 0.42 kg. The average acceleration of the football was 14.8 m/s².How much force
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According to Newton’s second law of motion, when an object is acted on by an unbalanced force, how will that object respond?Re
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An object is seen to either speed up, slow down, or change direction.What are these behaviors caused by?
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An object is seen to either speed up, slow down, or change direction.What are these behaviors caused by? Responses stable
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A tight rope walker who does not want to change his position will want the forces acting on him to be what?Responses large large
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What is the force that every mass exerts on every other mass?Responses weight weight pull pull matter matter gravity gravity
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Which statement best illustrates the role that gravity played in the formation of the solar system?Responses Gravity caused the
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Which sentence is a correct statement of Newton's second law?Responses Every mass in the universe is attracted to every other
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When a bat hits a ball, what is the impulse?Responses the mass multiplied by the force the mass multiplied by the force, the
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A baseball is traveling (+20 m/s) and is hit by a bat. It leaves the bat traveling (−30 m/s).What is the change in the
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What makes some collisions elastic and others inelastic?Responses If there is no loss of kinetic energy in the collision, it is
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2. 71 views
Which describes the primary goal of the first labor unions?Responses settling disputes between striking workers and business
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Why did unions have more power than individual workers to improve conditions?Responses Unions had the approval of the courts and
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Which term refers to a person who favors government control of businesses that affect most citizens, such as railroads,
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Which was a goal of Samuel Gompers, but not of socialists?Responses safe working conditions in America's factories and mines
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Why did the public fear early unions?Responses Workers made unreasonable demands. Workers made unreasonable demands. The public
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Which social activist worked tirelessly for child labor reform and said, "I'm not a humanitarian. I'm a hell-raiser"?Responses
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Which subject would a muckraker be most likely to write about?Responses the beauty of the Grand Canyon the beauty of the Grand
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Which was a result of journalist Ida Tarbell's exposé?Responses The Standard Oil Company's trust was dissolved by the Supreme
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Which goal was John Muir most interested in?Responses adequate medical care for miners adequate medical care for miners sanitary
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Which quote best expresses John Muir’s philosophy?Responses "Congress shall make no laws abridging the freedom of speech and
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Which conclusion can be drawn from this graph?Responses About 1,615,000 people living in the United States in 1910 were born in
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What is the purpose of the National Park System?Responses to establish green spaces in cities and towns to establish green
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What is Jane Addams known for?Responses helping immigrants and the poor at Hull House helping immigrants and the poor at Hull
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Which did conservationists promote?Responses not using public lands at all not using public lands at all finding and identifying
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Why is a free press important in a democracy?Responses Governments need a way to communicate with the people. Governments need a
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Most of New York state's population lives in the southeast.Which term is used for this information? Responses population growth
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Which statements are accurate descriptions of the Haymarket Square incident?Choose all answers that are correct. Responses A
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Which groups shared in the prosperity of the late 1800s?Choose all answers that are correct. Responses slum dwellers slum
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Which issues did the Progressive movement of the early twentieth century address?Responses conservation, child labor, racial
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