A girl is walking 2km north them east then south then west whar is her displacement

An 81-kg physicist and a friend are ice-skating. The physicist, distracted, collides from behind at 7.0 m/s with his friend, who is skating at 5.0 m/s in the same direction. After the collision, the physicist continues in the same direction at 4.

During a storm, thunder is heared 7s after the lightining is seen. If the temperature of the air at the time of the storm is 28°C. how far away is the storm?

What is the difference between nuclear energy and light energy?

Mr. Mann's science students were experimenting with speed. They set up a 1 meter (100 cm) track. The students used balls instead of cars. The balls were different sizes and made of different materials.

What does the principle of conservation of matter say

What acceleration does a 9 N force produce in a 3 kg object? Make sure to show your work. (The 4 steps)

What type of mixture is Skittles candy?

What is the relationship between a planet's position in the solar system and the length of that planet's year?

The process of how rocks can tell us how old the earth is

why does a bicycle fitted with solid tyres give a bumper ride than on which has air fitted tyres