An object is placed 15 cm in front of a concave mirror of radius 40 cm. What is the nature of the image formed?

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

Which one of the following terms is used to indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? velocity acceleration equilibrium force inertia

A1000-kg car is moving at 30 m/s around a horizontal unbanked curve whose diameter is 0.20 km. what is the magnitude of the friction force required to keep the car from sliding?