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A motorist drives north for 32.0minutes at 76.5 km/h and then stopsfor 15.0 minutes. He then continues north, traveling 130 km in1.60 h.
(a) What is his total displacement?
km
(b) What is his average velocity?
km/h
A spacecraft is traveling with a velocity of V0x=5480m/s along the+x direction. Two engines are turned on for a time of 842s.One engine gives the spacecraft an acceleration in the +x directionof ax=1.20m/s^2, while the other gives it an acceleration ..
An air-filled cylindrical inductor has 2500 turns, and it is 3.8 in diameter and 32.6 long. What is its inductance? How many turns would you need to generate the same inductance
The two blocks, m1 = 1.40 kg and m2 = 5, are connected by a mass less rope that passes over a pulley. The pulley is 12 cm in diameter and has a mass of 2.0 kg.
a tow truck is pulling a car out of a ditch by means of a steel cable y 2.0 x 1011 nm2 that is 8.87 m long and has a
the differential of thermal energy of a surface of a liquid with surface tension y and area a may be written as du tds
189.35 J of energy are transferred to a system in the form of heat while the internal energy decreases by 46.99 J
The drive train of a bicycle includes wheels 67.3 cm indiameter and pedal cranks 17.5 cm long. The cyclist pedals at asteady angular rate of 76.0 rev/min. Calculate the angular speed of the bicycle wheels
A raindrop at rest, in a cloud 7600 meters above earth startsits journey toward earth. Determine how long it takes the raindropto reach the ground
A spaceship approaches Earth with a speed of 0.70c. What is his heartbeat rate according to an observer that is at rest relative to Earth
A space craft is designed to be rotating column, in order to simulate artifical gravity. find angular frequency must be maintained to simulate surface gravity
An unresolved binary system consists of two stars, one has V = 6.00 and (B-V) = .22, and the second star V = 8.50 and (B-V) = 0.12 a) what is the V and B flux density of each star? b) what is the apparent V and B magnitude of the combined system?
two very small objects whose charges are 1 c and -1 c are separated by 1.5 m. what is the magnitude of the electric
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