saima

This page lists questions and answers that were posted by visitors named saima.

Questions

The following questions were asked by visitors named saima.

i want to make an project on safer construction practises for tsunami only want 10questions on this topic

what are the three consecutive whole numbers whose sum is 48?

a baseball is thrown at 30ms^-1. the batter hits it and gives it a velcoity of 40ms^-1 in the opposite direction. if the ball and bat are in contact for 0.04 s, what is the average acceleration of the ball during this interval?

An insect walks 50 cm in a straight line along a wall. if its horizontal displacement is 25 cm,? calculate its vertical displacement.

A man walks 5 m at 37 degree north of east then 10 m at 60 degree west of north.? calculate the magnitude and direction of his displacement.

Three vectors are specified as A is 5 m at 45o north of east, B is 7 m at 60o east of south, and C is 4 m at 30o west to south.?Find the magnitude and direction of their sum.

Determine the x and y components of the following vectors? a) P of length 5 m directed at 150 degree counter clockwise from the positive x axis b) Q of length 3.6 m directed at 120 degree clockwise from the positive y axis

An object is thrown up from the top of building 50 m high. it rises to a maximum height of 20 m above the roof.? a) when does it land on the ground b) at what velocity does it land? c) what is its velocity 15m below the roof?

A rifle with weight of 30N fires a 5.0g bullet with a speed of 300ms^-1. a) Find the recoil speed of the rifle. b) if a700N man holds the rifle firmly against his shoulder, find the recoil speed of man and rifle.

A rocket with mass of 60,000 kg is placed on a launching platform verticlly. its engine is started and the rocket gives out gas at rate of 50kgs^-1 with a speed of 5000ms^-1 a) calculate the up trust force caused by the gas. b) can the rocket be launched...

a missile guidance system has five fail-safe components. the probability of each failing is 0.05. find these probabilities. a) Exactly 2 will fail b) More than 2 will fail c) All will fail. d) Compare the answer for parts a, b, c, and explain why these re...

Driving to work alone. It is reported that 77% of workers aged 16 and over drive to work alone. Choose 8 workers at random. Find the probability that a) All drive to work alone b) More than one-half drive to work alone c) Exactly 3 drive to work alon

sodium cyanide nacn, contains how many single, double or triple bond?

which of the following have a covalent bond? AlCl3, NH3, H3O, H2O

Which of the following pairs of compounds has the same molecular shapes? a) AlCl3 and BF3 b) AlCl3 and PCl3 c) BF3 and NF3 d) CO2 and SO2

Give the shapes of CH3, O3, SnCl3, BrF3, I3

What is the sum to 5 terms of the geometric progression whose first term is 54 and fourth term is 2?

Answers

The following answers were posted by visitors named saima.

sorry i don't no,,,,