Answer:
No, the ride is not safe
Explanation:
From the diagram attached, it is seen that
................(1)
.......(2)
From the diagram, 
............(3)
Put (3) into (2)
w = weight of chair + weight of child = 50 + 10 = 60 lb
g = 32 ft/s²
m = w/g = 60/32 = 1.875
L = 30 ft
T = 3 secs
since 246.74 lbs > 200 lbs, it is not safe because the stationary chair will creak
Answer:
1.62 meters
Explanation:
For an approximate result, divide the feet (height) by 3.3 to get your approximate meters (height).
Answer:
In the - j direction, that is negative of the y-axis
Explanation:
As typed in the question, the position of the object is given by the expression in three component ( i, j, k) form:
r (t) = 5 i - (t + 1 ) j + t^3 k
and since the velocity is the derivative of position with respect to time, by doing the derivative of this expression we get:
v(t) = 0 i - 1 j +3 t^2 k
which for the initial velocity requested (that is at time zero) we have:
v(t) = 0 i - 1 j +3 (0)^2 k = = 1 j
Then the direction of the initial velocity is entirely in the direction of the j versor, that is pointing to the negative of the y-axis.
Answer:
Unknown
Explanation:
By definition, we can't observe what's inside there, because no light – no information of any kind – can escape a black hole. But astrophysical theories suggest that, at the core of a black hole, all the black hole's mass is concentrated into a tiny point of infinite density. This point is known as a singularity.
Answer:
false
Explanation:
since it has seven valence electrons it means it's a non metal and non metals always gain electrons.
