A 45.0-kg person steps on a scale in an elevator. The scale reads 460 N. What is the magnitude of the acceleration of the elevator?

Q: Consider the physical quantities m, s, v, a, and t with dimensions [m] = M, [s] = L, [v] = LT¹, [a]…

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Q: Both 0.169 and 0.17 have been marked as incorrect. Why might this

A: mass of apple (m) = 100 g = 0.1 kg mass of moon (M) = 7.3×1022 kg Radius of moon (R) = 1.7×106 m

Q: A particle with a mass of 2.2 x 10-20 kg is oscillating with simple harmonic motion with a period of…

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Q: Six electrons are trapped in a one-dimensional infinite potential well of width L , in h? , (assume…

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Q: how is 0.992 the radius?

A: The radius value is already mentioned in the question.

Q: What is the uncertainty, (±), of: (a) 9.5 cm (b) 17 mL (c) 2.0100 g

A: uncertainty is the values which cannot be precisely or accurately measure with a given set of…

Q: Two point charges q1 and q2 are held in place 4.50 cm apart. Another point charge of mass Q=-1.75 C…

A: Given:charge on the moving mass, Q = −1.75 μCits mass, m = 5.00 g = 5.00×10−3 kgdistance between q1…

Q: can you check your answer for the last problem because I am getting 1.07

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Q: a. Draw an energy level diagram (doesn't have to be to scale) indicating the transitions that…

A: We know that for a particle trapped in an one dimensional infinite potential well (square) must have…

Q: Can anybody tell me about the ending 0 in these numbers, why we include it in determiining "sig…

A: In 0.0210, the number of significant digits is 2. Because of the zero on the right side of the…

Q: You have a twin that stays at home on the Earth while you travel in a spaceship. You leave Earth…

A: Given, You and your twin age=20years Total travel time, tspaceship =5years After 5 years, a long…

Q: y professor has the correct answer listed as 167 m. How did he get that answer from the exact same…

A: From the given information,time of free fall, upward acceleration,

Q: Could you rewrite this better with equations you need to use to get this answer.

A: So we have given a thermos bottle  which contains 3.0 kg of water and 2.0 kg of ice in thermal…

Q: Why did you use 1/2 in the equation?

A: we need to find the torque on stick  torque=force X perpendicular distance

Q: How would I round it for scientific notation?

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Q: You want to throw a ball a distance of 2l over a wall of height h as is shown in the figure below.…

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Q: A 0.55 cm diameter plastic sphere, used in a static electricity demonstration, has a uniformly…

A: Given: The given values are, The diameter value is, d=0.55 cm. And then the value of the charge is,…

Q: If one variable increases in value and the other variable increases in value, the variables have…

A: Positive correlation  If one variable increases in value and the other variable increases in value,…

Q: so b= 6.09 s^-2  but you used 5.21. when I plug in the answers its wrong, can you please fix this.

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Q: 1) Calculate the density of a block of unknown metal that has mass 234.00 g and is a cube that…

A: We are allowed to give the explanation of first question only which is given below. Please repost…

Q: Using the rules of significant figures, calculate the multiplication of A = 48.399 and B = 0.849:

A: To multiply A = 48.399 and B = 0.849 using significant figures, we follow these steps: Count the…

Q: You normally drive on the freeway between San Diego and Los Angeles at an average speed of 105 km/h,…

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Q: A point source emits 58.7 W of sound isotropically. A small microphone intercepts the sound in an…

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Q: A rectangle has a length of (5.1 ± 0.2) m and a width of (2.3 ± 0.1) m. Calculate: (a) the area and…

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Q: Could you explain why 2.5 is the correct answer ?

A: Given; mass of the body, m = 2kg Initial vertical Force = 5N Initial horizontal Force = 10N…

Q: A rope holds a 7.8-kg rock at rest on a frictionless inclined plane as shown.

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