Answer:
a
The value of magnetic field is 
In the direction of the positive x - axis
b
The value of magnetic field is
In the direction of the positive z - axis
Explanation:
From the question we are told that
The velocity of the electron is 
Considering the first position
The equation for the magnetic field is
Now 
substituting values
Therefore 
So Substituting 
for 
, 
for q
Considering the second position
Here
So Substituting for , for q
A martian meteorite is a rock that was flung from mars to earth by the force of an asteroid hitting mars (there for sending our little rock friend flying). Over 61 thousand of these meteorites have been found on earth 132 were identified as martian.<span />
Answer:
The force that required an object to move is greater than friction force. The opposite force for an object in motion is the friction force (assuming that the surface where the object lies is rough as most real objects are). This force is needed to be overcome to set the object to motion.
Explanation:
Answer:
Explanation:
Considering the fact that we ave been given an angle of inclination here, we best use it! That means that the velocity of 23 m/s is actually NOT the velocity we need; I tell my students that it is a "blanket" velocity but is not accurate in either the x or the y dimension of parabolic motion. In order to find the actual velocity in the dimension in which we are working, which is the y-dimension, we use the formula:
and filling in:
which gives us an upwards velocity of 9.7 m/s. So here's what we have to work with in its entirety:
a = -9.8 m/s/s
t = 2.8 seconds
Δx = ?? m
The one-dimensional motion equation that utilizes all of these variables is
Δx = 
and filling in:
Δx = 
I am going to do the math according to the correct rules of significant digits, so to the left of the + sign and to 2 sig fig, we have
Δx = 27 + 
and then to the right of the + sign and to 2 significant digits we have
Δx = 27 - 38 so
Δx = -11 meters. Now, we all know that distance is not a negative value, but what this negative number tells us is that the ball fell 11 meters BELOW the point from which it was kicked, which is the same thing as being kicked from a building that is 11 meters high.
Answer:
1cm
Explanation:
The amplitude of a wave is the distance from the center line (in this case the 1 cm marker on the vertical ruler) to the highest or lowest point. For this image the highest point is 2 cm, 2cm-1cm=1cm. The lowest point is 0cm, 1cm-0cm=1cm.
