Other Physics Answers

think/observe 3 applications of the laws of motion that you experience in everyday life. Take a pictures of this application and explain which laws are being applied and their importance

A man wanted to measure the height of a building by dropping a bob from the top. If the bob hits the ground 2.30 seconds after it was dropped, how high is the building? 

The ultraviolet rays that cause sunburn is called UV rays. They have a wavelength of

approximately 300 nanometers (3.0 x 10-7 m). What is the frequency of a UV ray?

Two boys, Christian and John having the same mass, are on roller skates facing each other. Christian pushes John who moves away at a speed of 1.5 m/s. What is Christian’s speed?

A train and a car have a head-on collision? Which vehicle experiences the greater force of impact? Which experiences the greater impulse? Which experiences the greater momentum change? Which experiences greater acceleration after the impact?

A car round a circular track takes 120seconds to do a lap of 6km. What is the speed of km/hr and m/s

Scenario: A four-horse carriage is accelerating by 6 m/s every three (3) seconds, carrying a total load (including the carriage, the coach man, and the passengers) of 275 kg. If the carriage is traveling for 50 meters along the dirt highway, whose friction value is known to be 451 N,

1. How much work does the four-horse carriage exerted?

2. How many seconds does the four-horse carriage had to attain the power necessary for work?

3. How much kinetic energy does the carriage possess?

A bullet of mass m moving with a horizontal velocity u strikes a stationary wooden block of mass M suspended by a string of length L=50 cm.The bullet emerges out the block with the speed u/4.If M=6m, the minimum value of u so that the block can complete the vertical circle?

. If the lever arm of a screw is 18 inches long and the pitch of the threads is 0.125

inch, how much weight will the jack lift if 50 pounds of force is applied at the end

of the lever arm ignoring friction?

How much pull (F) would it take on the block and tackle rope to lift a 545 pounds

engine?