Which of the following group 7A elements is the most reactive?

Two tug boats are towing a large boat, of mass 22500 kg, back to shore. Tug boat 1 is pulling with a force of 5500 N at an angle of 35◦ north of the forward motion (similar to Worked Example 2) and tug boat 2 is pulling with a force of 4907.

A boy lifts a 30N dragon 2 meters above the ground. How much work did the boy do in the dragon? What is the work?

All the terrestrial planets have ... A. liquid oceans B. liquid helium C. rocky surfaces D. at least one moon

A blacksmith heats a 1.5 kg iron horseshoe to 500 C, containing 20 kg of water at 18 C then plunges it into a bucket What is the equilbrlum temperature? Express your answer using two significant figures.

The farther the object is stretched or compressed, the greater its potential energy. True False

A body is moving with a velocity of 12m/s and it comes to rest in 2 minutes, what was the acceleration?

How can you find magnitude of velocity from a displacement time graph of an object?

Consider two rocks with masses of 1 and ten kilograms. What is the relation between their inertia's? Between their masses? Between their weights on earth?

If a cart of 4 kg mass has a force of 8 newtons exerted on it, what is its acceleration?

Why does the liquid thermometer work?