Why is it important to have exact standards of measurement?

Famous musicians and the instrument they play

What force of attraction is responsible for the dissolution of an ionic crystal in water?

Sebanyak 0,2 mol gas ideal berada dalam wadah yang volumenya 10 liter dan tekanan 1 atm. berapakah suhu gas tersebut

Objects in motion of kinetic energy an object fall their potential energy is converted into kinetic energy how much kinetic energy do you think the ball will have just before I hit the floor as if it was dropped from a 2 meter shelf

A 15-kilogram cart is at rest on a horizontal surface. A 5-kilogram box is placed in the cart. Compared to the mass and inertia of the cart, the cart-box system has (1) more mass and more inertia (2) more mass and the same inertia (3) the same mass

In a summer storm the wind is blowing with a velocity of 8m/s north. Suddenly in 3 seconds, the winds velocity is 23m/s north. What is the winds acceleration?

How does a bicycle rider's energy of motion changes as the gain speed while riding down a hill? Options: A) It is lost. B) It increases. C) It remains the same. D) It is stored in the bicycle rider.

When is a sailboat the stand on vessel in relations to a recreational power boat?

What happens when a balloon is rubbed with a woollen cloth?

A child causes a wagon to accelerate by pulling it with a horizontal force. newton's third law says that the wagon exerts an equal and opposite force on the child. how can the wagon accelerate? (hint: draw a free-body diagram for each object.)