
Given Statement: "In freefall the acceleration is always g and always straight downward regardless of the motion." Three Objections: (a) If I drop a balloon or a feather, it doesn't fall nearly as fa

So I was able to figure out the first question but I'm having trouble with the second question. B/c the calculated vector was composed by adding all the horizontal and vertical components.

Please give me detailed solutions.. step by step... not like some vague solution does not give anything

A 7.5kg block is sliding down a wall with constant velocity. The coefficient of static friction between the block and the wall is s = 0.70. The coefficient of kinetic friction between the block and

An amusement park ride is shown in Fig. 1. It has a motorized vertical shaft with twoattached cables. The cables join at a seat which holds a seated passenger. The combinedseat and passenger have a we

A version of an amusement park ride, is shown in Fig. 2. The arm of length L is freeto pivot where it connects to the arm of length d. Instead of a numerical problem, use thegiven symbols and m for th

Explain why the LEDs are made of many compound semiconductors but not the column IV elemental semiconductors to date

Question number 1 plz. How to I calculate a final temperature at equilibrium

HW5 Consider an ensemble consisting of five distinguishable (e.g. different colored) dice. a. What is the total number of different outcomes that can be obtained by throwing all five dice at once? Gen

A toaster rated at 1 050 W operates on a 120V household circuit and has a 4.00m length of nichrome wire as its heating element. The operating temperature of this element is 320 C. What is the cross
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Sample Questions
 The Earth’s rate of rotation is constantly decreasing, causing the day to increase in duration. In the year 2000 the Earth takes about 0.548 s longer to complete 365 revolutions than it did in the year 1900.
 (a) What is the average angular acceleration of the Earth?
 (b) If this average acceleration remains constant, in what year will the Earths rotation come to rest?
1. Can you show me step by step how to solve this problem?:
 A spherical balloon is made from a material whose mass is 3.00kg. The thickness of the material is negligible compared to the 1.5m radius of the balloon. The balloon is filled with helium (He) at a temperature of 305degrees K and just floats in the air, neither rising nor falling. The density of the surrounding air is 1.19kg/m^3. Find the absolute pressure of the helium gas
2. I do not understand this Ideal Gas Law and Kinetic Theory question. Can you help me set it up?