Explain why atmospheric pressure decreases with increasing altitude (3marks)

The international space station orbits the earth at a distance of 6,783 km from the center of the earth it travels at 7.66 km/s. Find the time it takes for the ISS to complete one orbit.

A 30.0-kg box is being pulled across a carpeted floor by a horizontal force of 230 N, against a friction force of 210 N. What is the acceleration of the box? How far would the box move in 3 s, if it starts from rest?

A block of mass m sits at rest on a rough inclined ramp that makes an angle θ with the horizontal. What must be true about force of static friction f on the block?

The speed of an object undergoing constant acceleration increases from 0 m/s to 23 m/s in 10 seconds. How far does the object travel during the 10 seconds

If gold gets hot enough, it will melt. What type of change is this? A. physical only B. chemical only C. physical and chemical

A wheelbarrow is an example of what type of lever

Why is it necessary to evaluate an experiment

A positive charge Q1 = 34 nC is located at the origin. A negative charge Q2 = - 5.5 nC is located on the positive x-axis p = 15 cm from the origin. Calculate the location of x axis in cm where electric field is.

What scientific question does Isaac Asimov most clearly address with his story "Runaround"? A. Should robots be allowed to marry? B, should robots be treated as members of the family? C. Can robots be trained to follow a moral code? D.

The force generated by a single muscle fiber can be increased by increasing is called