The gas in the balloon has a mass of 0.032 kg. The balloon has a volume of 0.025 m3. Calculate the density of the gas in the balloon.

[2 marks]

Give an example of a manipulative variable and a responding variable.

A stone is dropped from the top of a tower of height 44.1m. How long will it take to reach the ground?

When you stretch a spring 13 cm past it's natural length it exerts a force of 21 N. what is the spring constant of this spring

How does heat flow? A. Heat flows from all objects to all other objects. B. Heat flows from a warmer object to a colder object. C. Heat does not actually flow from one object to another.

What is a gas giant?

Shivering to warm up illustrates which characteristic of life? A. adaptation to environment B. homeostasis C. getting energy D. growth

Dante pours hot tea into a mug that is cool to the touch. Which best explains what will happen now?

What type of resource can be regenerated or replenished by biochemicl cycles

How much work is done lifting a 12-m chain that is initially coiled on the ground and has a density 2 kg/m so that its top end is 11 m above the ground? (Assume that acceleration due to gravity is g = 9.8 m/s2.)

Which is a correct step in a scientific experiment involving acids and bases?