The table below shows the height of some horse fossils. Horse Fossil RecordHorse Fossil Height (cm)
W 52
X 135
Y 38
Z 100

Ancient horses were much smaller than present-day horses. The present-day horse is 140 centimeters tall. What is the correct order of evolution of the horse starting from the oldest fossil?

X Z W Y
Y W Z X
W Y X Z
Z X W Y

Which term best describes the phrase “something that happens”?

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules

Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?