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A. You drive a car a distance of 1 km at 16km/h. Then you drive an additional distance of 1km at 32km/h. What is your average speed?
B. A car is initially traveling due north at 23m/s.
C. A car is accelerating at 12m/s². Find its acceleration in km/h².
Calculate the value of resistanceR. Calculate the potential difference across the 12.2 ? resistor. Calculate the potential difference across the 50.9 ? resistor. Calculate the potential difference across R.
What is the velocity of the AB pair after A collides with B? How much did the temperature of the 100 kg steel coupler (originally 293 K) change as a result of the collision? The specific heat of steel is 0.466 J/kg.k
A force acting on an object moving along the x axis is given by Fx = (14x ? 3.0x2) N, How much work is done by this force as the object moves from x = ?2.0 m to x = +1.0 m
The lowest point in Death Valley is 85 m below sea level. What is the change in potential energy of an energetic 91.2kg hiker who makes it from the floor of Death Valley to the top of Mt. Whitney
High-speed stroboscopic photographs show that the head of a 270-g golf club is traveling at 53 m/s just before it strikes a 46-g golf ball at rest on a tee. Find the speed of the golf ball just after impact
The amplitude of a lightly damped oscillator decreases by 2.8% during each cycle. What percentage of the mechanical energy of the oscillator is lost in each cycle?
A police officer is investigating the scene of an accident where two cars collided at an intersection. One car with a mass of 1015 kg moving west had collided with a 1300-kg car moving north. The two cars, stuck together, skid at an angle of 30° n..
When white light passes during transmission diffraction grating an observer sees in the fringe of the 1st order. A spectrum with the red light being deflected the most. A spectrum with the violet light being deflected the most
A transverse wave of wavelenght 0.50m travels along a rope. If the frequency of the wave is 40.0Hz, what is the speed of propagation of the wave
the kinetic coefficient of friction for a 12 kg mass on a table is 0.25. a string from this mass goes across a pulley
Find the mechanical energy of a block- spring system having a spring constant of 1.3 N/cm and an oscillation amplitude of 2.4 cm
on a ferris wheel with a 15 m radius, going one loop every 7 seconds, what is the acceleration? What is the ratio of your true weight vs apparent weight
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