A force of 200 N is exerted on an object of mass 40 kg. What is the

acceleration?

All the elements of a family in the periodic table have what feature in common?

When we jump on a concrete surface, the feet gets injured, why?

What is one benefit of a switch in a circuit?

A 7150-kg railroad car travels alone on a level frictionless track with a constant speed of 24.5 m/s. A 3100-kg load, initially at rest, is dropped onto the car What will be the car's new speed?

Which of the following expressions uses the correct conversion factor to convert 35.7 km into the equivalent distance in miles? A) 35.7 km * 1 km/1.609 milesB) 35.7 km * 1 mile/1.609 milesC) 35.7 km * 1 km/1.609 kmD) 35.7km * 1 mile/1.609 km

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?