Física
Cinemática, análisis de fuerzas, electricidad y razonamiento con ecuaciones.
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which quotations from the excerpt provide evidence to support the claim…
"Security forces arrested three people who administered nearly two dozen Facebook pages." "It [Egypt] also detained activists who had been involved in prior protests." "Meanwhile …
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which of the following best defines an entrepreneur? a a person who has…
C. an individual who creates a new business, bearing most of the risks while enjoying most of its rewards
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question 25 of 25 in the circuit below, resistors r₁ and r₂ are in para…
D. 30 Ω
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four children pull on the same stuffed toy at the same time, yet there …
The forces exerted by the four children on the stuffed toy are balanced. That is, the magnitudes of the forces and their directions are such that the vector - sum of all the force…
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if you notice files being transferred to or from your computer a. simpl…
C. Tell the lab instructor
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question 24 of 25 a 75 ω resistor in a circuit has a current flowing th…
D. 300 W
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identifying forces gustavo and beatriz are pushing on a door in opposit…
The forces are balanced. The net force is 0.
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question 23 of 25 which of the following would cause an increase in the…
A. Decreasing the separation between the two magnets
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question 22 of 25 what is the strength of the electric field of a point…
B. $2.7\times 10^{-4}\ N/C$
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2. why is it important to use si base units when measuring mass and vol…
Using SI base units for mass and volume ensures global consistency, accuracy in measurements, ease of communication among researchers, and simplifies calculations and comparisons.
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question 21 of 25 the potential difference across a resistor increases …
D. It increases by a factor of 2.
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calculating net force what is the net force acting on the box? $f_n = 1…
65 N
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question 20 of 25 a parallel plate capacitor is connected to a battery …
C. $2.5\times 10^{-11}\text{F}$
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question 19 of 25 when you take off a wool hat, some of the electrons f…
D. The electrostatic force is stronger than the gravitational force between Earth and your hair.
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6 multiple choice 1 point what check should be performed daily on an au…
6. D. All of the above 7. D. Both B and C 8. B. The wire wheel of a bench grinder. 9. B. A parts washer
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question 18 of 25 how are the oscillating magnetic and electric fields …
C. They are perpendicular to each other.
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question 43: scenario: a recipe requires 2.5 kilograms of flour. comple…
Question 43: A. 1000 Question 44: A. 10800 seconds Question 45: True
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question 17 of 25 a small bar magnet is placed in the magnetic field of…
The small bar magnet will align with its north pole in the direction of the magnetic field line at point Z.
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1. in which situations can we use standard measurements? a. experiments…
D. all of the above
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identifying changes in motion study the force diagram to complete the s…
The forces acting on the box are gravity, normal force, frictional force, and applied force. The box will move to the right.
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multiple choice listen what modern vehicle technology can also help you…
C. GPS
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question 40: complete the sentence: converting units requires the multi…
Question 40: A. conversion factors Question 41: A. 2.5 L Question 42: True
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as a driver, what kind of camera should you install on your vehicle if …
D. backup camera
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multiple technicians in an auto repair shop have noticed that their air…
C. Both technician A and B. ### 2nd Question
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what is the best way to improve objectivity in the paragraph? by removi…
by eliminating emotional language used to describe the charity work
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question 16 of 25 what is the current flowing through the circuit shown…
C. 1.8 A
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question 15 of 25 the drop in potential across a resistor in a circuit …
D. 25 A
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question 14 of 25 two point charges are separated by a distance d. the …
B. The new electric potential energy is $\frac{1}{4}$ as strong as the original electric potential energy.
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a person pushes a box across the floor with a force of 75 n. the box ac…
$25\ N$
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if you want to clear ice from your car windshield and you are inside yo…
C. key fob
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question 13 of 25 what is the electric force between two point - charge…
D. $5.5\times 10^{-25}\text{ N}$
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pretest: unit 3 two circuits have identical voltage sources. the only o…
B. The current flowing through circuit A is $\frac{1}{4}$ as large as the current flowing through circuit B.
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there is a 5,000 kg elevator hanging from a cable. calculate the force …
55000 N
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question 36: complete the sentence: in dimensional analysis, ensuring t…
Question 36: A. dimensionally consistent Question 37: A. dimensional analysis Question 38: 1 pound = 0.453592 kilograms
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question 11 of 25 if the current through a resistor is cut in half, how…
A. It decreases by a factor of 4.
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question 10 of 25 the circuit diagram below shows the locations of four…
A. Switch 1
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question 34: complete the sentence: when converting units, you must can…
Question 34: A. unwanted Question 35: A. 1000
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question 9 of 25 three circuit diagrams are shown. which statement abou…
C. Circuits A and B are series circuits, and circuit C is a parallel circuit.
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3. a map must show its ______ an indication of which way is orientation…
A. orientation
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5) gerry wanted to save up money for a new amp for her electric guitar.…
240
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question 8 of 25 a series circuit is shown in the diagram below. what i…
A. 20 V
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problem 1. a squirrel climbs to the top of a 28 - m tall tree with an i…
Problem 1: $t\approx5.04\ s$ Problem 2: $t = 10\ s$ Problem 3: $v_0 = 16.4\ m/s$ Problem 4: $a=-0.2\ m/s^{2}$ Problem 5: $v\approx9.59\ m/s$
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question 7 of 25 a current of 0.050 amps flows in a circuit element wit…
C. 5.0 V
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2. a map is a scale distance title tool
D. Tool
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question 6 of 25 how much electrical potential energy is stored in a ca…
D. $1.6\times 10^{-8}\text{ J}$
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question 5 of 25 which of the situations described below is explained b…
A. A child's hair stands on end after she removes a stocking cap on a cold day.
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question 8 10 pts 1 details 6. given that e_kinetic = p^2/2m and the de…
$6.626\times 10^{-34}$
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1. all maps have ____ things in common. * six four five three
C. Five
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question 3 of 25 the two ends of a coiled wire are connected to the ele…
C. Moving the bar magnet back and forth along the axis of the coil induces a current in the wire.
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definition: an error is the difference between an experimental value an…
Instrument - related errors, human - error, environmental factors, random fluctuations.
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question 1 of 25 a current runs to the right in a long, straight wire. …
D. Into the page
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analyzing rhetorical techniques in a speech for others, their experienc…
The author appeals to the audience's emotions by saying, "my Latina heritage."
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question 23 of 25 a mailman performed 588 j of work lifting a box 1.4 m…
A. 420 N
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question 22 of 25 which force keeps planets in orbit around the sun? a.…
C. Gravity
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question 21 of 25 which dog has the most kinetic energy? a. a dog of ma…
D. A dog of mass 11 kg running with speed 5 m/s
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question 20 of 25 why are force fields necessary to describe gravity? a…
D. Gravity is a noncontact force.
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which type of appeal is used in this public service ad? emotional appea…
emotional appeal
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question 26: true or false: converting 60 minutes to hours yields 1 hou…
Question 26: a. True Question 27: a. True Question 28: a. True
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question 18 of 25 a bird has a mass of 0.8 kg and flies at a speed of 1…
A. 50.2 J
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definition: density is the mass per unit of volume of a material. sente…
A. They must have different masses.
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when a ball drops from the roof of a building, it speeds up as it falls…
B. Gravitational potential energy to kinetic energy
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informational text evidence quick check 5 of 5 \voting access for nativ…
Whether native people will appeal the ban to a higher court.
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if you do not have oil in your cars engine, the parts that rub together…
C. It decreases the force of friction.
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question 15 of 25 which fundamental force keeps the nucleus of an atom …
B. Strong nuclear force
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7. which shutter speeds requires a tripod? mark all that apply * 1/10 1…
7. 1/10, 4" 8. Slow
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question 14 of 25 which of the following is an effect of the electric f…
A. Two positive charges repel each other.
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question 23: true or false: dimensional analysis can be used to derive …
Question 23: a. True Question 24: a. True Question 25: a. True
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informational text evidence quick check 4 of 5 why do authors leave mat…
B. They want to force the reader to draw their own conclusions. E. They want to avoid inherent bias in their writing.
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a lemon with mass 0.3 kg falls out of a tree from a height of 1.8 m. ho…
A. 5.3 J
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definition: mass is the amount of matter in an object. sentence: tennis…
B. mass, A. density
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a roller coaster has a mass of 425 kg. it sits at the top of a hill wit…
A. 36.0 m/s
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which statement best evaluates the objectivity of the headline? the hea…
The headline is not objective because the word raids adds emotion to the language.
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definition: mass is the amount of matter in an object. sentence: tennis…
A. density, B. mass
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question 10 of 25 a parachutist of mass 100 kg falls from a height of 5…
D. $KE<490\ kJ$
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definition: mass is the amount of matter in an object. sentence: tennis…
A. density
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question 9 of 25 a force of 115 n is used to move a chair 0.8 m. how mu…
B. 92.0 J
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question 9 of 25 a force of 115 n is used to move a chair 0.8 m. how mu…
There is no correct option provided in the given choices. The correct work done is 92 J.
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sentence: tennis balls and golf balls have different mass. in addition …
B. mass
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analyzing rhetorical techniques in a speech for others, their experienc…
The author appeals to the audience's emotions by saying, "my Latina heritage."
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as an apple falls from a tree, which types of energy are changing? a. k…
C. Gravitational potential energy and kinetic energy
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a boy throws a ball up into the air with a speed of 8.2 m/s. the ball h…
A. 10.1 J
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4. what piece of equipment helps to keep the camera stable and prevent …
4. Tripod 5. Notation (forward - slash for fraction of a second) 6. 1/100
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definition: matter refers to anything that takes up space and has mass.…
C. a vacuum
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if a television with mass 15 kg is lifted to a shelf of height 1.2 m, h…
C. 176.4 J
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while working out, a man performed 2525 j of work in 19 seconds. what w…
C. 132.9 W
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question 20: which method is used to verify that units cancel appropria…
Question 20: A. Dimensional analysis Question 21: a. True Question 22: a. True
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question 3 of 25 a dog with mass 14 kg has a kinetic energy of 135.5 j.…
C. 4.4 m/s
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which object has the most gravitational potential energy? a. a 15 kg co…
C. A 15 kg computer at a height of 0.8 m
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a car of mass 550 kg is moving at a speed of 1.5 m/s. a man pushes the …
B. 2197 J
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you performed an experiment to find out what angle would make a cannonb…
D. What is the effect of air resistance on the cannonball?
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unbroken started sep 17 at 1:37pm quiz instructions question 11 what fi…
A. a tuna, B. A pilot fish, D. a shark
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the table below shows the measurements you took in an experiment. trial…
B. 1.4 km
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our scientific question what geologic process could have formed the cha…
1. Without seeing the evidence, cannot select a claim. 2. Without a selected claim, cannot provide a reason for support.
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question 8 of 10 what is meant by the phrase \a consistent method of me…
C. Things are measured the same way each time.
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you performed an experiment in which you measured the amount of water l…
A. 12.9 L
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you perform an experiment in which you find out how much mass evaporate…
B. Scale
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why is creativity important in constructing scientific methods? a. the …
A. The best way to test a hypothesis is not always the most obvious way.
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why is creativity important in constructing scientific questions? a. th…
B. Science works best when people ask many different kinds of questions.
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what is one advantage of doing a field experiment instead of a laborato…
D. A field experiment is a more accurate representation of real life.
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what is one advantage of modeling a system? it eliminates all errors. i…
It allows for easy visualization of complex systems.