Answer:
Time taken, t = 3.53 seconds
Explanation:
It is given that,
The formula for calculating the time t is given by :
...... (1)
Where
s is the distance in feets
We need to find the time taken by the stone to drop a distance of 200 feets, s = 200 feets
Put the value of s in equation (1) such that,

t = 3.53 seconds
So, the time taken by the object is 3.53 seconds. Hence, this is the required solution.
Answer:
The force of gravity pulling downward and the force of the table pushing upwards on the book are of equal magnitude and opposite directions. These two forces balance each other. Yet there is no force present to balance the force of friction. ... Unbalanced forces cause accelerations.
Explanation:
There must be a equal opposite reaction.
E=mv2
Five
The diagram that represents rays from the sun is given below.
The answer from the diagram is parallel lines.
Six
The formula for this is n_i * Sin(i) = n_r * sin(r)
n1 = 1.333 water
n2 = 1.309 ice
i (angle) = 40o
r (angle) = ?
Solution
1.333 * sin(40) = 1.309*sin(r)
1.333 * sin(40)/1.309 = sin(r)
0.6546 = sin(r)
sin-1(0.6546) = 40.88 degrees.
I guess my closest answer would be A. I'm not rounding at all and that's the answer I get.
Answer:
b. The horizontal component of the normal force acts toward the center of the circle.
Explanation:
When a car on a banked turn move with just the right speed so that the frictional force is zero, a component of the normal force -which is always perpendicular to the surface- acts as the centripetal force on the car. This is because the normal force now has a horizontal component, and this component supplies the centripetal force.