How much force is exerted on a 3 kg object accelerating from rest to 12 m/s in 1.5 seconds?

Why is a suction effect experienced by a person standing close to the platform at a station when a fast train passes?

Jim wants to learn more about the feeding habits of ants. What steps should he take in order to best study the patterns of ants?

The mass of a density bottle is 20g when empty 70g when full of water and 695g when full of another liquid. Calculate the density of the other liquid (take density of water as 1g/cm3)

Barium chlorate (ba (clo3) 2) breaks down to form barium chloride and oxygen. what is the balanced equation for this reaction?

A jet of water issuing from a stationary nozzle at 10 m / s (aj = 0. l m2) strikes a turning vane mounted on a cart as shown. the vane turns the jet through angle fj = 40°. determine the value of m required to hold the cart stationary

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.