# Homework Help for Physics (page 7)

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What is the quantity used to measure an object's resistance tochanges in rotation?
a) torque
b)moment of inertia
c)mass
d)angular velocity

16 Jun 2019

A block of weight W = 14.5 N, which can slide without friction on a 45o incline, is connected to the top of the incline by a massless spring of unstretched length x0 = 0.48 m and spring constant k = 375 N/m. By how much will the spring be stretched when the system is in equilibrium?

12 Jun 2019

Using the concept of torque, explain how someone can use a lever to lift objects that are much heavier than they could otherwise lift.

11 Jun 2019

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11 Jun 2019

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11 Jun 2019

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10 Jun 2019

Question:

How many protons, neutrons, and electrons are in a neutral atom of sodium?

10 Jun 2019

Question:

What is the pressure conversion factor for torr to kPa?

10 Jun 2019

Question:

How many valence electrons does helium have?

10 Jun 2019

Question:

How many valence electrons does calcium have?

10 Jun 2019

Question:

What is the electron configuration for?

10 Jun 2019

Question:

How can I write the formula for lithium oxide?

10 Jun 2019

Question:

What is the number of valence electrons in aluminum?

10 Jun 2019

Question:

What are nucleotides?