you are driving home from school at 95km\h for 180km. It then begins
to rain and you slow to 65km\h. You arrive home after driving 4.5h how far is
the hometown from school?
The first step we took for this lab was to assemble the karate board into a cradle and took the
measurement of the position of the board. Then we hung the swing from it and we measured the amount
of displacement seen by adding the swings mass u
Magnetic Field Lab Web Gordon 4/29/08 Abstract: The purpose of this experiment was to measure the Earth's magnetic field at our location in Schenectady. We also set out to determine the dip angle of that field at our location. We calculated this by m
Electrostatics Lab Webster Gordon 4/14/08 Abstract: The purpose of this lab was to investigate the properties of electricity using an electroscope and charged rods, and an electrophorus. We were looking to see how an electroscope would react to diffe
Discharging a Capacitor Lab Webster Gordon 5/20/08 Abstract: The purpose of this lab was to look at the discharging of capacitors and how they are changed by using different resistances. We had a circuit set up so that when a switch was thrown one wa
CHAPTER 1 MEASUREMENT AND PROBLEM SOLVING
Remind students that their answers to odd-numbered exercises may be slightly different from those given here because of rounding. Refer to Problem-Solving Hint: The "Correct" Answer in Chapter 1.
1. 2. 3.
Physics 120 - Homework 6
- - i = 9, 0, -5 m, - i = -10, 13, -5 m/s, F net = 0, -mg, 0 r v
(a) t = 0.6 s, - f =? v - -f = pf = v m -f = v
1 m 1 m
- + - net t pi F
[m -10, 13, -5 m/s + 0, -mg, 0 (0.6 s)]
- f = -10, (13 - (9.8)
Physics 120 - Homework 5
- There is no contradiction here. When you pull a sled across a level eld at constant velocity, the force that you exert just balances the frictional force so that the net force is zero and therefore there is
Physics 120 - Homework 4
- It is reasonable to use the approximate (classical) formula for momentum in each
of these situations except for (d).
- = - f - - i = m -vx , 0, 0 - m vx , 0, 0 = m -2vx , 0, 0 p p p
- - |-