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A small car with a mass of 850kg travels northward at 25m/s.
a) Does the car have more or less momentum than a truck with a mass of 10500kg traveling eastward at 17 m/s? -------more or less
b) How much more or less? -------times
a how do electrons and protons compare? select all that apply. every electron has a negative charge and every proton
The coefficients of kinetic and static friction between a 1000 lb refrigerator and flor are .4 and .45. when at rest the refrigerator is pushed with a horizontal force of 300 lb. what is the force of friction between the fridge and the floor?
You place one end of the pole on a fence post and hold the other end of the pole 35 from its tip. Explain how much force must you exert to keep the pole motionless in a horizontal position?
Nancy pulls box with 6 N force northward; Edward pulls with 4N force eastwood and Sally pulls with 5N force 36.9 degrees south of west
Joey, whose mass is 39kg, stands at rest at the outer edge of the frictionless 230kg merry-go-round, 2.2m from its center. What is the final angular speed of the merry-go-round
The windpipe of a typical whooping crane is about 5.0 ft long. What is the lowest resonant frequency of this pipe, assuming that it is closed at one end? Assume a temperature of 39°C. Hz
Three charged particles are placed at all of three corners of an equilateral triangle whose sides are of length 4.0 cm. Two of the particles have a negative charge: q_1 = -6.0 nC and q_2 = -12.0 nC. The remaining particle has a positive charge, q_3 =..
a container has 2.0 litres of oxygen gas at 0 degrees celsius and 1.0 atm pressurea how many moles of oxygen does it
Given that the carbon atom has a mass of 12 amu, how many carbon atoms are there in a diamond with a mass of 8 g
A 52g ice cube can slide without friction up and down a 26 degree slope. The ice cube is pressed against a spring at the bottom of the slope, compressing the spring 10cm . The spring constant is 23N/m. When the ice cube is released, what distance wil..
When certain light rays pass from a vacuum into a block of an unknown material, What is the speed of light inside the block
A pyrex beaker that holds 250 ml of water at 20 degrees celcius is filled to the brim. how much water (if any) will spill out of the beaker
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