Questions from Modern Physics


Q: Vector

Vector

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Q: In each case, find the x- and y-components

In each case, find the x- and y-components of vector

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Q: The density of gold is 19.3 g/cm3.

The density of gold is 19.3 g/cm3. What is this value in kilograms per cubic meter?

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Q: A square field measuring 100.0 m by 100.0

A square field measuring 100.0 m by 100.0 m has an area of 1.00 hectare. An acre has an area of 43,600 ft2. If a lot has an area of 12.0 acres, what is its area in hectares?

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Q: Find the magnitude and direction of the vector represented by the following

Find the magnitude and direction of the vector represented by the following pairs of components: (a) Ax = -8.60 cm, Ay = 5.20 cm; (b) Ax = -9.70 m, Ay = -2.45 m; (c) Ax = 7.75 km, Ay = -2.70 km.

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Q: Vector

Vector

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Q: A small rock is thrown vertically upward with a speed of 22

A small rock is thrown vertically upward with a speed of 22.0 m/s from the edge of the roof of a 30.0-m-tall building. The rock doesn’t hit the building on its way back down and lands on the street be...

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Q: Write each vector in Fig. E1.24 in terms of

Write each vector in Fig. E1.24 in terms of the unit vectors

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Q: Given two vectors

Given two vectors

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Q: (a) Write each vector in Fig. E1.39

(a) Write each vector in Fig. E1.39 in terms of the unit vectors

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