How can i calculate the net force of an object?

I need someone to give me 2 answers, Basically, this is how you do it Get a object (book) Pink, square, solid 8 inches in length, extensive Malleable, Intensive I just need two of those types, (thats how you do it)

23692U = 14456Ba + 89 36Kr + 3n is a a) fission reaction b) fusion traction c) alpha decay d) beta decay

What equation expresses the the work-energy theorem?

A tiny sphere of mass 7.70 mg and charge - 2.80 nC is initially at a distance of 1.64 μm from a fixed charge of + 8.69 NC. (a) If the 7.70-mg sphere is released from rest, find its kinetic energy when it is 0.500 μm from the fixed charge.

A ball has a mass of 140 g. What is the force needed to accelerate the ball at 25 m/s2? (Formula: F=ma)

A major obstacle to developing good human relations is that

4.) An apartment building is on fire and a guy is trapped on the fire escape ladder. There is a dumpster that is 6.3m away and is filled full of trash, and he is 7m above it.

Calculate the temperature of and power-per-area radiated from a blackbody if the spectral intensity density peaks at (a) gamma rays, λ = 1.50*10-14 m; (b) x rays, 1.50 nm; (c) red light, 640 nm; (d) broadcast television waves, 1.

How has increased energy use associated with scientific advancements affected society? a. It has led to an increase of the concentration of atmospheric carbon dioxide. b. It has led to an increase in hazardous wastes from mining operations. c.

Water is moving with a speed of 5.7 m/s through a pipe with a cross-sectional area of 4.8 cm2. The water gradually descends 9.2 m as the pipe increases to 8.8 cm2. (a) What is the speed at the lower level? (b) If the pressure at the upper level is 1.