Dr Nick

(4)

$14/per page/Negotiable

About Dr Nick

Levels Tought:
Elementary,Middle School,High School,College,University,PHD

Expertise:
Art & Design,Computer Science See all
Art & Design,Computer Science,Engineering,Information Systems,Programming Hide all
Teaching Since: May 2017
Last Sign in: 339 Weeks Ago, 6 Days Ago
Questions Answered: 19234
Tutorials Posted: 19224

Education

  • MBA (IT), PHD
    Kaplan University
    Apr-2009 - Mar-2014

Experience

  • Professor
    University of Santo Tomas
    Aug-2006 - Present

Category > English Posted 08 Nov 2017 My Price 13.00

HelpING work out these questions pleasee!! Just as many as you can atleast.

1. A forklift raises crates of mass 600kg and a height of 3m. How much work is done?

2. What is the mass of a lift if 400 000J is required to raise the lift a height of 20m?

3. How much work must be done on a motor cycle of mass 250kg to accelerate it uniformly from rest at 3m/s for 4s?

4. What is the gain in kinectic energy of an object of mass 40kg if it falls from rest at 4m/s

5. What loss of kinectic energy occurs as the speed of a bicycle is reduced from 12m/s to 4m/s? The mass of bicycle and cyclist is 100kg.

6. What is the gain in potential energy of a pendulum bob of weight 15N which is raised vertically 0.1m above its lowest position?

7. A brick of mass 2kg is dropped from the top of a tower. How hgh is the tower if the velocity of the brick upon stricking the ground is 30m/s.

8. How high does a ball of mass 0.5kg travel if it is given an initial upward kinectic energy of 46J?

9. A pendulum bob of mass 0.5kg swings through its lowest point of travel with a speed of 0.8m/s. To what maxium vertical height will it travel?

10. An arrow of mass 0.1kg is fired vertically upwards with an intial velocity of 30m/s. Determine the:

a. Kinectic energy

b. potential energy

When its upward velocity has decreased to 10m/s.

I have the answers however im not sure how they got the answers and need to figure how to work them out thanks.

Answers

Dr Nick
(4)
Status NEW Posted 08 Nov 2017 12:11 PM My Price 13.00

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