KnowsNothing

A bullet with the mass of 45 g is fired into an 8.3 kg block of wood resting on a floor against a spring. This ideal spring (k = 76 N/m) has a maximum compression of 28 cm. What was the initial speed of the bullet?

What is the difference between electric force, electric potential energy, electric field strength, electric potential, and electric potential difference?

When a polynomial is divided by (x+2), the remainder is -19. When the same polynomial is divided by (x-1), the remainder is 2. Determine the remainder when the polynomial is divided by (x-1)(x+2).

Determine a vector that is orthogonal to the vector e = [3, -1, 4]

Is lead non-polar covalent, polar covalent, ionic, network, or metallic and why?

The complete combustion of 1.00mL of octane increases the temperature of 250.00g of water by 22.7 degrees Celsius. The density of octane is 0.70g/mL. What is the efficiency of the octane in heating the water? I attempted this question and I have -400 some...

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