(a) How much gravitational potential energy (in J) (relative to the ground on which it is built) is stored in an Egyptian pyramid, given its mass is about 4 x 109 kg and its center of mass is 22.0 m above the surrounding ground? (Enter a number.) X J (b) What s the ratio of this energy to the daily food intake of a person (1.2 x 107 J)? (Enter your answer as a ratio to the number 1. Enter a number.) X :1

(a) How much gravitational potential energy (in J) (relative to the ground on which it is built) is stored in an Egyptian pyramid, given its mass is about 4 x 109 kg and its center of mass is 22.0 m above the surrounding ground? (Enter a number.) X J (b) What s the ratio of this energy to the daily food intake of a person (1.2 x 107 J)? (Enter your answer as a ratio to the number 1. Enter a number.) X :1

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Description: I need one answer for each one don’t give me (number)*10^ I don’t want this (a) How much gravitational potential energy (in J) (relative to the ground on which it is built) is stored in an Egyptian pyramid, given its mass is about 4 x 109 kg and its

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter6: Energy Of A System

Section6.3: The Scalar Product Of Two Vectors

Problem 6.3QQ: Which of the following statements is true about the relationship between the dot product of two...

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Which of the following statements is true about the relationship between the dot product of two vectors and the product of the magnitudes of the vectors? (a) AB is larger than AB. (b) AB is smaller than AB. (c) AB could be larger or smaller than AB, depending on the angle between the vectors. (d) AB could be equal to AB.
Suppose that 23 of work is needed to stretch a spring from its natural length of 36 cm to a length of 47 cm. (a) How much work (in J) is needed to stretch the spring from 38 cm to 42 cm? (Round your answer to two decimal places.) 0.26 (b) How far beyond its natural length (in cm) will a force of 20 N keep the spring stretched? (Round your answer one decimal place.) x cm 1
Note: when it says "Your answer is equal to 10 to what power?", we want the value of P where answer = 10 P. Convert the following quantities as requested (no computation required): (a) 10 cg = ___g (grams); Your answer is equal to 10 to what power? (b) 0.1 ms = ___s (seconds); Your answer is equal to 10 to what power?
Suppose that 6 J of work is needed to stretch a spring from its natural length of 32 cm to a length of 43 cm. (a) How much work (in J) is needed to stretch the spring from 34 cm to 38 cm? (Round your answer to two decimal places.) J (b) How far beyond its natural length (in cm) will a force of 50 N keep the spring stretched? (Round your answer one decimal place.) cm
Suppose that 6 J of work is needed to stretch a spring from its natural length of 28 cm to a length of 34 cm. (a) How much work is needed to stretch the spring from 30 cm to 32 cm? (Round your answer to two decimal places.) (b) How far beyond its natural length will a force of 30 N keep the spring stretched? (Round your answer one decimal place.) cm
In 2017, solar panels on your author’s home generated 3849 kilowatt-hours (kWh) of electrical energy, while the house con- sumed electrical energy at an average rate of 392 watts (W). Find the average rate of solar power generation in watts, where 1 kWh is 3.6 megajoules (MJ; the joule is the SI unit of energy) and 1 W is 1 J/s. Did the house generate more or less electrical energy than it consumed?
Suppose that 5 J of work is needed to stretch a spring from its natural length of 26 cm to a length of 43 cm. (a) How much work is needed to stretch the spring from 34 cm to 39 cm? (Round your answer to two decimal places.) J (b) How far beyond its natural length will a force of 30N keep the spring stretched? (Round your answer one decimal place.) cm
Suppose that 2 J of work is needed to stretch a spring from its natural length of 28 cm to a length of 41 cm. (a) How much work is needed to stretch the spring from 36 cm to 46 cm? (Round your answer to two decimal places.) (b) How far beyond its natural length will a force of 30 N keep the spring stretched? (Round your answer one decimal place.)
Suppose that 2 J of work is needed to stretch a spring from its natural length of 32 cm to a length of 47 cm. (a) How much work (in J) is needed to stretch the spring from 34 cm to 42 cm? (Round your answer to two decimal places.) 0.85 (b) How far beyond its natural length (in cm) will a force of 10 N keep the spring stretched? (Round your answer one decimal place.) 37.6 x cm
(Dimensional Analysis) To test the performance of a car, a driver wishes to find the speed v of the car a certain time t after it started moving. Assuming that P is the power delivered by the engine and the mass of the car is m. v « pªtbmr (a) Use dimensional analysis to find a, B, and y. The SI unit of P is kg m2/s³. (b) Write the formula accordingly including the values of a, ß, and y.
The work required to launch an object from the surface of Earth to outer space is given by W = F(x)dx, where R=6370 km is the approximate radius of Earth, GM, M2 F(x) = x2 is the gravitational force between Earth and the object, G is the gravitational constant, M, is the mass of the Earth, M, is the mass of the object, and the product GM, is equal to 4x 1014 m3 /s?. Answer parts (a)-(c). .... a. Find the work required to launch an object in terms of M2. The work required is W = m² /s² (Simplify your answer. Round to three decimal places as needed. Use scientific notation. Use the multiplication symbol in the math palette as needed. Type an expression using M, as the variable.)
Power and energy Energy is the capacity to do work, and power isthe rate at which energy is used or consumed. Therefore, if E(t) is theenergy function for a system, then P(t) = E′(t) is the power function. A unit of energy is the kilowatt-hour (1 kWh is the amount ofenergy needed to light ten 100-W light bulbs for an hour); the corresponding units for power are kilowatts. The following figure shows theenergy demand function for a small community over a 25-hour period.a. Estimate the power at t = 10 and t = 20 hr. Be sure to includeunits in your calculation.b. At what times on the interval [0, 25] is the power zero?c. At what times on the interval [0, 25] is the power a maximum?