Saif
This page lists questions and answers that were posted by visitors named Saif.
Questions
The following questions were asked by visitors named Saif.
. Four identical metal spheres have charges of qA = –8.0 µC, qB =–2.0 µC, qC = +5.0µ C, and qD = +12.0µ C. (a) Two of the spheres are brought together so they touch, and then they are separated. Which spheres are they, if the final charge on each one is +...
12 years ago
Suppose an equation that describes the path of a diver when diving off a platform is d = -5t^2 + 10t + 20. Where d is the distance above the water in (feet) and t is the time from the beginning of the dive(seconds). After how many seconds is the diver 25...
12 years ago
A satellite is free falling from a distance (d) of the surface of the moon with radius (R), with zero initial velocity. At what rate does the area of the portion of the moon visible to the satellite decrease at a time (t) after the free fall starts? When...
9 years ago
Water is falling on turbine at a rate of 6000 kg/min the height of fall is 100 m what is the power given to turbine?
8 years ago
Which of the following statements about Ohm’s Law is true? A. Keeping the same voltage and decreasing resistance decreases the current. B. To increase the current, decrease the resistance. C. Ohm’s law relates power, current and resistance. D. Increasing...
8 years ago
The output voltage and current of a transformer are determined by the A. number of turns in the primary and secondary coils. B. ferromagnetic material of the rings connecting the coils. C. strength of the DC current in the primary coil. D. direction of th...
8 years ago
Answer the following questions in a few sentences. Shanghai Questions 1. How did Shanghai merge East and West in the era of colonialism? Who do you think benefited most from the city as it existed at that time? 2. How was Shanghai transformed in the commu...
7 years ago
if a mass of 2.4 g of magnesium is burnt in air, 4.0g of magnesium oxide is formed. 1- what kind of reaction is this ? explain your answer b- what was the mass of oxygen that reacted with the magnesium? explain you answer
5 years ago
Suppose that 20% of the students in a college are smokers. A sample of 10 students is randomly selected from this college. What is the probability that at least 3 students in this sample are smokers?
5 years ago
From the top of a fire tower, a forest ranger sees his partner on the ground at an angle of depression of 40º. If the tower is 45 feet in height, how far is the partner from the base of the tower, to the nearest tenth of a foot? (Detailed explanation plea...
5 years ago
Answers
The following answers were posted by visitors named Saif.
49
12 years ago
Well the answer is definitely correct because that is the one selected on the answer sheet. I don't know why though.
12 years ago
Steve-that is all the given info Damon- no. thanks Eryk i will try it it is an application of derivative
9 years ago
a. 2*4*3=24 b. 2*4*3*3*4=288
8 years ago
i need answers to the following question
7 years ago
F = k q1*q2/R^2 F = 9x10^9((4*10^-6)(6*10^-6)/0.3^2) F = 2.4 N to the left
4 years ago