Physics - December 2006

A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is 0.22 and the push imparts an initial speed of 3.7 m/s?

2006-12-07 12:52:46 · 2 answers · asked by Woodie W 1

"Zeros at the end of a number are significant only if they are indicated to be so through the use of scientific notation."

I don't understand this concept. Can someone help me please?

2006-12-07 12:49:49 · 3 answers · asked by Anonymous

The last time I asked, people told me that it was due to the difference in surface area. That explanation doesn't make sense to me, because I thought that sliding friction was independent of surface area.

2006-12-07 12:30:44 · 4 answers · asked by button 1

The force constant of the spring is 28.6 kg/s^2, and the period of motion which results when the mass is released is 23.8s.

What would the maximum acceleration and maximum velocity of the system be?

2006-12-07 12:29:37 · 3 answers · asked by Anonymous

6 Examples of "Pulleys in objects? I need things like cranes. Help!

2006-12-07 12:27:57 · 5 answers · asked by Anonymous

2006-12-07 12:17:21 · 2 answers · asked by Hannah h 1

Why does the speed of sound decrease in hot water (vs cold water)? Please use scientific terms. The longer the answer, the better. Thanks!

2006-12-07 12:14:12 · 4 answers · asked by jaaaaaaaaaaaaaaaaaaaaaba 1

I can you go into my profile and answer my other question, "angle of a pendulum". I'm stuck, my parents have no clue since its a 12 grd physics problem.

2006-12-07 12:12:26 · 1 answers · asked by this Mike guy 5

2006-12-07 11:55:27 · 2 answers · asked by Anonymous

what is the net force on a 1-N apple when you hold it at rest above your head?

2006-12-07 11:53:38 · 2 answers · asked by tata_717 2

Why: I wish to poke it.

2006-12-07 11:43:39 · 5 answers · asked by Anonymous

An air bubble of 32 cu. cm. volume is at the bottom of a lake 10 m deep where the temperature is 5C. The bubble rises to the surface where the temperature is 20C. What is the volume of the bubble just before it reaches the surface?

I know it can't be Charles' Law because pressure doesn't remain constant. I thought it may have been the Ideal Gas Law, but I don't know what to use for pressure.

Any insight to help me along? Thanks!

2006-12-07 11:37:08 · 3 answers · asked by alonso_fan85 1

is described by the wave function

y=(0.1m) sin[(0.5 rad/m)x-(20rad/s)t]

How is the frequency of osciallation of a particular point at x = 2.0 m (in Hz) determined.

2006-12-07 11:36:05 · 1 answers · asked by Dee 4

I herd of an experiment using a partical accelerator and two metals to make gold. how is this done.

2006-12-07 11:31:41 · 7 answers · asked by Anonymous

and what would hapen if i poke it?

2006-12-07 11:29:05 · 4 answers · asked by Anonymous

2006-12-07 11:15:12 · 3 answers · asked by Anonymous

The motion of an object is described by the equation:
x=(0.7m) cos(pi*t / 4)
At .07 sec, x = .5968115 m
1. What is the frequency of the motion? (answer in units of Hz)
2. What is the period of the motion? (answer in units of s)

2006-12-07 11:07:01 · 1 answers · asked by smb473 1

What two simple machines make a scissors a compound machine?

2006-12-07 11:02:20 · 2 answers · asked by typicalbutiluvyou 2

A 50 KG Pole Vaulter running at 10 m/s vaults over the bar. Her speed when she is over the bar is 1.0 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar...


?


I thought I got this question when I was reading it but then it said to find altitude and I was just like ooo kkkkk..... kkkkkk

2006-12-07 10:55:15 · 3 answers · asked by Twilight Is Love 1

A simple pendulum, 2 m in length, is released by a push when the support string is at an angle of 25 deg. from the vertical. If the initial speed of the suspended mass is 1.2 m/s when at the release point, to what maximum angle will it move in the second half of its swing?

The answer is 30 deg., I just need to figure out how to get it.

2006-12-07 10:47:20 · 5 answers · asked by this Mike guy 5

what is the rate of change of the distance between the ships at 1 pm?

2006-12-07 10:39:56 · 1 answers · asked by calc 101 2

When can this happen?

2006-12-07 10:23:05 · 2 answers · asked by rosecrashers1365 2

Which has the highest energy?
THe longest wavelengths?

Light waves
x rays
UV waves
microwaves
rasio waves

2006-12-07 10:22:00 · 3 answers · asked by rosecrashers1365 2

What is the relationship between wave length and energy?

2006-12-07 10:20:47 · 2 answers · asked by rosecrashers1365 2

2006-12-07 09:55:46 · 4 answers · asked by wantshumpasta 1

If you have an image on a RGB monitor that is primarily Red is it reflecting only Green and Blue visible light? True or False. Please explain why this statement is true or false.

Thanks!

2006-12-07 09:44:43 · 1 answers · asked by cognac_kid 2

2006-12-07 09:21:00 · 3 answers · asked by Anonymous

A student moves a 25kg box of books up a ramp inclined at 10° with the horizontal by pulling a rope attached to the box. The student pulls the rope with a force of 120N at an angle of 30° relative to the ramp.

a. Find the normal force of the block.

b. Calculate the force of friction between the box and the ramp if the coefficient of kinetic friction between the box and the ramp is 0.2

2006-12-07 08:25:07 · 1 answers · asked by Some Guy 2

Mark is pulling a 12kg cart at a constant acceleration of 1.5 m/s^2 along a horizontal floor with a downward force of 20N, 20° below the horizontal.

a. What is the magnitude of the frictional force that the cart is experiencing if the coefficient of friction between the cart and the floor is 0.2?

b. What is the acceleration of the cart?

2006-12-07 08:18:54 · 1 answers · asked by Some Guy 2

We just finished the units on oscillations and frequency and waves, but we did not do sound yet.

Thank you....

2006-12-07 08:03:26 · 2 answers · asked by crockett_1969 2