How do you find the velocity when an object is at rest?

Which undergoes a physical change if it is heated at 50 degrees celcius?

Transmission speeds:a. are the same among all mediab. are not a factor in selecting a media because all media have more than enough speed to serve current communication demandsc. are a constant, 56Kbps, for all media typesd.

A steel tape (a=1.300 E-5 per Celsius degrees) measures 200.0 m at 15.00 degrees celsius. It's length at 55.00 degrees celsius is

What is the speed of a bobsled whose distance-time graph indicates that it traveled 121m in 30s?

17. Which sound has the highest pitch? 156 Hz (hertz); 258 Hz (hertz); 14 dB (decibels) : 563 dB

A 1.00-kg object A is connected with a massless string across a massless, frictionless pulley to a 2.00-kg object B. The smaller object rests on an inclined plane which is tilted at an angle of θ = 30.0° a.

Which of the following procedures was done to minimize human error? We let the weight swing 25 times and divided by 25 to get the avg period of one oscillation Why did we plot T2 vs L instead of just T vs L?

What percentage of the earth's surface is covered in water

Can swimmers hold their breath longer that people who don't swim. what is the hypothesis?

A baseball and a basketball, having the same mass, are dropped through air from rest such that their bottoms are initially at the same height above the ground, on the order of 1 m or more.