2. Which of the following is a reasonable estimate of the number of characters (

Question

2. Which of the following is a reasonable estimate of the number of characters (typed letter or numbers) in a 893 page book?Assume an average of 190 words/page and a reasonable average numberof letters/word. A) 7 x 105 char B) 7 x 107 char C) 7 x 106 char D) 7 x 104 char
6. A projectile is thrown upward at 24.00 withthe vertical and returns to the horizontal ground 12.5 a later withno air drag A) How fast was it thrown? B) How far from its original position did it land? C)How high above its original position did it go?
7. A box of mass 47kg is at rest on a horizontal frictionlesssurface. A constant horizontal force F then acts on the box,and accelerates it to the right. It is observed that it takes thebox 2.4 seconds to travel 68 meters. What is the magnitude of theforce?
A) 7 x 105 char B) 7 x 107 char C) 7 x 106 char D) 7 x 104 char
6. A projectile is thrown upward at 24.00 withthe vertical and returns to the horizontal ground 12.5 a later withno air drag A) How fast was it thrown? B) How far from its original position did it land? C)How high above its original position did it go?
7. A box of mass 47kg is at rest on a horizontal frictionlesssurface. A constant horizontal force F then acts on the box,and accelerates it to the right. It is observed that it takes thebox 2.4 seconds to travel 68 meters. What is the magnitude of theforce?

Explanation / Answer

2 ) Assume the average characters is 4 => the number of characters in that book : N = 190*893*4 =678680 => answer A : 7x10^5 char 6) a) we have : the time : T = 2*Vosin24/g => Vo = gT/(2sin24) = 150.6 m/s b) the distance : D = Vocos24*T = 1719.6 m c) maximum height : H = (Vosin24)^2/2g = 191.4 m 7) the acceleration : d = (1/2)at^2 => a = 2d/t^2 = 23.61 m/s2 => the force : F = M*a = 1109.7 N

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.