175km per hour
That’s the speed it was going.
Using law of conservation of energy, "Energy can neither be created nor be destroyed but it can be transformed from one form to another".
That is, sum of Kinetic energy and Potential energy at initial point is equal to the sum of Kinetic energy and Potential energy at final point.
We can say that,
(K.E)1 + (P.E.)1 = (K.E)2 + (P.E)2
1/2 m1 * v1² + m1*g*h1 = 1/2 m2 * v2² + m2* g*h2
For motion in circular path,
Initial velocity v1 is at h1 =0
Final velocity v2 is at h2= d
For rotational motion, inertia is denoted by I.
1/2 I1 * v1² = 1/2 I2* v2² + I2 gd
1/2 I2*v2² = 1/2 I1*v1²- I2 gd
v2²= I1/I2 * v1²- 2 gd
v2= √(I1/12* v1²- 2gd)
The above equation gives the speed of the ball when it reaches the top of circular path in term of I, g and d.
Carcinoma refers to a malignant neoplasm of epithelial origin or cancer of the internal or external lining of the body. Carcinomas, malignancies of epithelial tissue, account for 80 to 90 percent of all cancer cases. Epithelial tissue is found throughout the body.
Answer:
190.3759 pounds
Explanation:
If the astronaut weighs 210 pounds when he is at a distance of 3978 miles from the Earth's center, then he will weigh
210 [3978 / (3978 + 200) ]² = 190.3759 pounds
at an altitude of 200 km.
Answer:
11.48 degree N of W
Explanation:
We are given that
Wind velocity=km/h
Because wind is blowing towards south
Air speed=
Because the captain want to move with air speed in west direction.
x component of relative velocity=-212 km/h
y-Component of relative velocity=-43km/h
Direction=
N of W
Hence, the direction in which the pilot should set her course to travel due west=11.48 degree N of W