Answer:
car A reaches and immediately overtakes the car B at 22.56 s.
Explanation:
After car A accelerate at 1.8 m/s2, it travels a distance x(A) and car B will have travels a distance x(B), let's recall that the initial distance between them is 300 m, so we have:
Now, we can rewrite this equation in terms of speed and time
Where:
V(iA) is the initial speed of car A
V(iB) is the initial speed of car B
t is the time when car A reaches the car B
a is the acceleration
Solving this quadratic equation for t, and taking just the positive value, we will have:
t=22.56 s
Therefore, car A reaches and immediately overtakes the car B at 22.56 s.
I hope it helps you!
Answer:
90J
Explanation:
The only time work is being done is when he lifts the box off the ground. Therefore, using the work formula, 2 x 45, you get 90J. Hope this helps someone.
<u>Solution:</u>
Substitute the values in the formula V=-E*d we get the answers
let us consider the electric field that travels in a positive way or the positive direction and E denotes the magnitude
Where E= 6.8 10^5 N/C
We have the formula, V=-E*d
Take d value as 5 from the option one
put V=0 since the fields are in the X direction and the points are in the Y direction
By the formula,
(0, 5.0 m)
V=-E*d
V= -6.8x10^5V/m*5m
V=-3.40x10^6V
By the formula (5.0 m, 0)
V=-E*d
V= -6.8x10^5V/m*5m
V=-3.40x10^6V
By the formula ,
(5.0 m, 5.0 m)
V=-E*d
V= -6.8x10^5V/m*5m
V=-3.40x10^6V
sub V=5 we get,
V=-3.40x10^6V+5
v=2.40x10^6V
Answer:
D. 5,700 m/s
Explanation:
Sorry for the late reply! I recently just answered this earlier.
Newton's prism experiments<span> showed that white </span>sunlight is made<span> up of. all colors of the visible spectrum.
Hope I helped :)
-Hind
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