Number of results: 114,223
rate? speed? If you drive down town at 40 mi/hour, isn't that a speed? Isn't that your rate of travel? distance = rate x time. 9.98 x 10^11 m = 3 x 10^8 x time. Your division of 9.88/3.00 is ok but what did you do with the exponents? They count, too, don't they?
Saturday, November 3, 2007 at 4:42pm by DrBob222
Physics "Space Travel"
Suppose you want to go to the immense red giant Betelgeuse, which is about 500 light years away. (A light year is the distance that light travels in one year.) You plan to travel at constant speed in a 1000 ig rocket ship. A: If the rocket ship's speed is 0.500 c, calculate ...
Thursday, April 17, 2008 at 8:07pm by Chelly
Force x distance = final kinetic energy of bullet The distance is the barrel length. Solve for the Force
Wednesday, September 24, 2008 at 6:26pm by drwls
suppose you fire a bullet speed 1600 m/s in a shooting gallery and hear the gong on the target ring .731s later taking the speed of sound to be 330m/s and assuming the bullet travels straight downrange at a constant speed, how far does the bullet travel before hitting the ...
Thursday, October 1, 2009 at 4:03pm by Andre
Physics - Frequency
time sound to travel= distance/velocitysound time for train get to the speed of v v=V0+at solve for t.
Wednesday, January 27, 2010 at 9:59pm by bobpursley
You used the equation for displacement, not distance. Here is a clue: what is final velocity at t=0? vf=22 -1*40=22-40= -18/s, so it is moving back toward the origin. What was average velocity (22+(-18))/2= = 2m/s What displacement does it travel in 40 sec? d= avg velocity*...
Saturday, February 6, 2010 at 11:12am by bobpursley
Physics - Dynamics in two dimensions
A sharpshooter shoots the bullet horizontally over level ground with a velocity of 300m/s. At the instant that the bullet leaves the barrel, its empty shell casing falls vertically and strikes the ground with a vertical velocity of 5m/s. How far does the bullet travel?
Saturday, December 4, 2010 at 3:00am by Farah
The sound speed is 340 m/s, give or take a few. You might want to compute it or look it up for that specific temperature. Solve this equation to get the distance, X: 2.00 = bullet travel time + sound travel time = X/460 + X/340 Solve for X, in meters
Sunday, December 12, 2010 at 11:08pm by drwls
It depends upon how big the force is and how long (or over what travel distance)it acts. You have omitted necessary information.
Thursday, December 16, 2010 at 12:04pm by drwls
a rifle aimed horizontally and 5 feet above level ground fires a bullet with a muzzle velocity of 3000 ft/sec. How far does the bullet travel from the end of the muzzle before it strikes the ground? (Ignore air resistance)
Wednesday, February 16, 2011 at 10:57pm by Jr
The ratio of wave travel distance (along a ray)to the distance the wave tralels long the fiber is 13.6/20.3 = 0.770 The angle that a ray makes with the side of the fiber is therefore cos^-1 0.770 = 47.9 degrees. The angle of incidence is the complement of that, or 42.1 degrees...
Sunday, February 20, 2011 at 1:27pm by drwls
An observer stands 43.0 m behind a marksmen practicing at a rifle range. The marksman fires the rifle horizontally which gives the speed of the bullet to be 939 m/s. How far does each bullet travel before the observer hears the report of the rifle? Assume that the bullet ...
Sunday, March 13, 2011 at 3:12am by Steph
can someone explain how to do this step by step i already have the answer but i need to know how to do it!! the answer is (a)6.67m/s (b)111km/s^2 The muzzle velocity of 50g shell leaving a 3kg rifle 400m/s(a)What is the recoil velocity of the rifle?(b)If the bullet travel 72cm...
Wednesday, November 16, 2011 at 7:50pm by KIKI
actually, there is an easier way. Avg velocity is 14m/s time to travel= distance/avgvelocity
Monday, February 6, 2012 at 6:32pm by bobpursley
In its own frame the average pi meson lives 2.60 x 10^-8s. Suppose it moves at 0.985c relative to the Earth. According to us, on Earth, what is a pi meson's average lifetime? (b) according to us, what is the pi meson;s average travel distance before decaying? (c) If time ...
Wednesday, May 2, 2012 at 8:31pm by pooja
In relative distance, you travel 2.7x2 meters. Your relative velocity is 9km/hr (change to m/s). time to pass: relative distance/relative speed Now, with that time; how far did you travel.. distance=your speed*time.
Sunday, July 8, 2012 at 6:34pm by bobpursley
how long does it take to fall 2000m? h=1/2 g t^2 solve for time t,in seconds. How far horizontally does it travel? distance=250m/s*time
Tuesday, July 17, 2012 at 5:39pm by bobpursley
Physics-bullet travel distance
A bullet is fired at 45 degrees with respect to horizontal with a velocity of 50 m/s. How long is the bullet in the air? What is the range?
Monday, December 3, 2012 at 7:29pm by daryl
I am not an expert. I am a very rusty amateur, so this has to be checked. But I think the difference in light travel distance you are talking about measuring is 2mm. That is, 1mm out into some 1mm deep feature in the object, and 1 mm back. Plus the 2 km there and back. But ...
Monday, April 8, 2013 at 9:46am by Josh
_Part A_ Let the first stone travel distance x(t) in and velocity u(t) in time t. Let the second stone travel distance y(t) in and velocity v(t) in time t. Let the second stone be released at time ŧ after the first. Given: x(0) = y(0) = 0[m] u(0)=0[m/s] v(ŧ)=26.0[m/s...
Friday, September 6, 2013 at 7:17pm by Graham