1 During a dass activity, Hashim walks 20 m due east. He reverses his direction and walks 12 m. After that,
he reverses his direction again and walk for another
10 m. If the total time taken is 30 s, what is his
speed and velocity?​

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical