Answer:
<em>a. 137.5 m</em>
<em>b. 550 m</em>
Explanation:
<u>Accelerated Motion
</u>
If an object is changing its velocity at a constant rate, it has a uniformly accelerated motion. When the object is moving in one fixed axis, then the sign of the acceleration is negative if the object is braking, and positive if the object is increasing its speed.
The initial speed vo, final speed vt, acceleration a, and distance traveled x are related by the formula
a. The Race Car A has an initial speed of 55 m/s and it's said to stop. We must find at what distance it goes to vf=0. This means that the above formula becomes
Solving for x
The acceleration is , negative because it's against the movement. Thus
b. If the car is going twice as fast (v0=110 m/s), then
Answer:
(a) The spacing of the fringes will remain unchanged if there is a change in the width of the slits but no change in the centers' distance.
(b) However, if the slits are made to be broader, wave interference will create less contrast. There will be a reduction in the intensity of the bright fringes.
Explanation:
The equation for the double slit experiment is shown below:
mλ = dsinθ
Thus: (a) The spacing of the fringes will remain unchanged if there is a change in the width of the slits but no change in the centers' distance.
(b) However, if the slits are made to be broader, wave interference will create less contrast. There will be a reduction in the intensity of the bright fringes.
Answer:
Western north america
Explanation:
extending from southern British Columbia through Washington and Oregon to North Calfirona
Answer:27.35 s
Explanation:
Given
weight of man =730 N
mass of man
radius of pound r=5.8 m
mass of book
velocity of book
let be the velocity of man
conserving momentum
time taken by man to reach south end
Answer:
D. two positively charged objects