Physics

Use the periodic table to answer the question.An illustration shows the periodic table of elements with elements arranged in increasing order of atomic number in 18 columns (groups) and 7 rows (periods).Which comparison is correct?(1 point)PH3 is a stronger acid than NH3.PH, 3, is a stronger acid than NH, 3, .HF is a stronger acid than HCl.HF is a stronger acid than HCl.H2S is a stronger acid than HCl.H, 2, S is a stronger acid than HCl.NH3 is a stronger acid than HF.
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The vertical and horizontal components of the velocity of a golf ball after being struck by a club are 4.0 m s1 and 5.0 m s respectively. Determine the magnitude and direction of the velocity of the golf ball. A 6.30 m s-1 B 6.35 m s-1 C 6.40 m s-1 D 6.45 m 5-1
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The relationship between Acceleration and Mass is described as:O a. EqualO b. Directly ProportionalO c. Inversely ProportionalO d. OppositeO e. None of these
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How do I measure the drag of a paper airplane?
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Give 4 facts about the alkali metals
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please help answer the question in the image!!!
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If a planet has an eccentricity of 0.92 and a distance of the major axis is 5,000,000 km, then what is the distance between foci?(1 point)460,000,000 km0.00000018 km4,600,000 km5,000,000 km
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State, with a reason, whether hotdog relish a homogeneous mixture or a heterogeneous mixture.
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A600kg car is acted force of 1200N starting from rest.how travel in 10 seconds?
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newtons first lawthe only way to change the velocity of an object is to apply _____
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The force involved in falling of an apple from a tree is known as? (a) Magnetic force (b) electrostatic force (c) Contact force (d) gravitational force
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What does waters high specific heat capacity explain about water?(1 point)why water bonds with other moleculeswhy water bonds with other moleculeswhy water is unable to absorb energywhy water is unable to absorb energywhy water is liquid at room temperaturewhy water is liquid at room temperaturewhy water is often used as a solvent
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If mason runs a 5 k race at an average speed of 300 m/min how long will it take him to finish
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11. A tennis ball is thrown straight up in the air, leaving the person's hand with an initial velocity of 3.0 m/s, as shown to the right. What is the displacement of the ball above the person's hand?
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A position versus time graph is shown:Position vs. Time1 151010Time (seconds) ->Which statement accurately describes the motion of the object in the graph above?O It is at rest for 3 seconds before moving at constant speed for 10 seconds.It is at rest for 3 seconds before moving at constant speed for 4 seconds.Olt is moving from 0 cm to 5 cm at constant speed of 7 cm/s.O it is moving from 0 cm to 3 cm at a constant speed of 3 cm/s.
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If you move two objects with opposite charges apart, what happens to the potential energy between them? Explain your response.
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The basic SI unit of length is
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What coefficient is needed in front of H2O to balance the equation below?
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which one would cool down faster, water or a block of concrete? why?
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magnetism and electricity are properties of metals due to their __________.
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A 2.55 kg piece of lead at 40 degree Celsius is placed in a very large quantity of water at 10 degree Celsius and thermal equilibrium is eventually reached. Calculate the entropy change of the lead that occurs during this process. The specific heat of lead is 130 J/(kg K).
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Put the waves in order from shortest to longest wavelength
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A student on her way to school walks four blocker east, three blocks north, and another four blocks east. Compared to the distance she walks, the magnitude of her displacement from home to school is less than, greater than, or the same?
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When laser light of wavelength 632.8 nm passes through a diffraction grating, the first bright spots occur at 17.8 from the central maximum. What is the line density
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