When is thermal equilibrium achieved between two objects?

When reading a measurement from an analog instrument like a ruler or a mercury thermometer, how should you determine the number of significant figures to record?

You record the length of different people's feet is this an example of a controlled experiment true or false

Name one low impact activitiy

How does a shorter wavelength affect the frequency of a wave?

Jo lifts a 330 N cement block 3.6 m (using a system of pulleys) by pulling 16 m of rope with a force of 121 N. a. What is the mechanical advantage of the pulley system? b. What is the work input? c. What is the work output? d.

How much power can I generate while lifting a mass for 30 seconds?

A car is idling at a stoplight. When the light turns green, the car takes 12 seconds to accelerate to 18.7 m/s. What is the average acceleration of the car? 0.64 m/s2 1.6 m/s2 -0.64 m/s2 -1.6 m/s2

A child on a sled starts from rest at the top of a 15° slope. if the trip to the bottom takes 23.9 s how long is the slope? assume that frictional forces may be neglected.

Which si prefix means one one-hundredth (1/100) ?

A sled is being pulled to the left by 5 dogs with 6 newtons of force. Find the net force