Sunday

January 22, 2017
Total # Posts: 14

**physics**

the velocity time graph of a car start from rest and it accelerate uniformly at a rate 3m/s2 for 5seonds if attain the velocity which maintain for 1m the car then brought to rest by a uniform retardation after another 30m. draw the velocity time graph. find the acceleration. ...

*February 12, 2015*

**physics**

a fruit drops from the top of a tree 40m tall, calculate. the time taken to reach the ground. the velocity just before it hits the ground.

*February 11, 2015*

**maths**

5 YEARS

*November 2, 2014*

**Microeconomics**

Suppose that the demand functions for price increases and for price cuts facing an oligopolist are, respectively, Q1=560-80p1 and Q2=200-20p1 Suppose that the firm’s total cost function is TC=4Q+0.050Q^2 3.1 Derive the MR1, MR2 and MC functions facing the oligopolist. 3....

*August 5, 2013*

**biology**

Important then very much go beat clara

*May 18, 2010*

**Physics for Life science**

1.You are riding on a 20m diameter Ferris wheel. when your cart is at the bottom, you feel twice as heavy as you normally are. what is the speed of the wheel?

*May 3, 2010*

**Physics for Life science**

1. Two people-one twice as heavy as the other one, play tug-of-war with a 12m ideal rope while standing on a frictionless ice surface. Would any of them move and if he does, how far? Explain why?

*May 3, 2010*

**Physics for Life science**

1.Since action and reaction are exactly equal and oppositely directed, how is ever possible for a net force to be acting on the body?

*May 3, 2010*

**Physics for life scince**

The population of Singapore is 4987600 people. The territory of Singapore is 710.2 km^2. the population of South Africa is 2171000people, while its territtory is 824292. Estimate the population densities of Singapore and South Africa.

*March 23, 2010*

**Physics for life scince**

III) The municipality of New York supplies 2 million cubic metres of water per month to the city of New York. If a household consumes about 30killo-littres of water per month, estimate the number of residents in New York ,assuming that a household has five members on everage.

*March 23, 2010*

**Physics for life scince**

II.You are standing on the edge of a 50m high cliff and throw a ball vertically up with initial speed of 20m/s: 1.After how long will the ball hit the ground below? 2.Draw the v vs.t graph

*March 23, 2010*

**Physics for life scince**

6.At the end of the 7th second the brakes are applied and the car slows down at a constant rate till it comes to rest in 5s. What is the acceleration? 7.Draw the v vs.t graph 8.find the final displacement: a)by using the graph b)by algebraic calculations using relevant formulae

*March 23, 2010*

**pPhysics for life scince**

4.The brakes are applied at the end of the 100s and the car comes to a stop within 20m, slowing down at a constant rate. What is acceleration? 5.Now the car turns back and its speed increases at 5m/s^2 for 7s. What is its speed at the end of 7th second? What its velocity at ...

*March 23, 2010*

**Physics for life science**

1. A car starts from rest and accelerates at a constant rate to 80km/h in 6s in positive direction. What is the acceleration? 2. After how long will the car speed be 120km/h if it keep accelerating at the same rate as in 1.? 3.After the car reached speed of 120km/h it travels ...

*March 23, 2010*

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