Answer:
Explanation:
It is given that,
Height of the building, h = 245 ft
The base of the building and shadow is x.
Let is the angle of elevation that is formed by lines from the top and bottom of the building to the tip of the shadow. Using the trigonometric ratio as :
When x = 300 feet
So, the rate of change of the angle of elevation is -0.001633 rad/ft. Hence, this is the required solution.
Answer:
C. must not be accelerating (i e, a = 0 m/s/s)
Explanation:
- When forces acting on an object are balanced the object is said to be at equilibrium.
- Unbalanced forces causes an object to accelerate, such that if two forces acting on an object are an equal, then the object will accelerate towards the direction of the greater force.
- On the other hand, when forces acting on an object are balanced, the object will be in a state of equilibrium and will not accelerate.
- Therefore, when forces are balanced acceleration is zero and the velocity of the object will remain constant.
Answer:
2
a) 109, 111, 113, 115
b) An odd number always follows an even number. So there can't be four consecutive even numbers. 2009, 2011, 2013, 2015 are the next odd numbers between 2008 and 2030.
c) 995, 997, 999, 1001, 1003, 1005, 1007
3
a) The sum of two odd numbers will result in an even number.
b) The sum of two even numbers will result in an even number.
c) The sum of an odd and an even number will result in an odd number.
In the helium atom, the strong force is a fundamental interaction between the "<span>(4) neutrons and protons" and it should be noted that this is the case for most atoms. </span>
It goes potential, then kinetic, then potential. So D.