If an object moves with constant acceleration, its velocity must
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An airplane increases its speed from 100 m/s to 160 m/s, at…
An airplane increases its speed from 100 m/s to 160 m/s, at the average rate of 15 m/s2. How much time does it take for the complete increase in speed?
The airplane shown is in level flight at an altitude of 0.50…
The airplane shown is in level flight at an altitude of 0.50 km and a speed of 150 km/h. At what distance d should it release a heavy bomb to hit the target X? Take g = 10 m/s 2.
The silicon chip in a microelectronic component has a mass o…
The silicon chip in a microelectronic component has a mass of 1.37×10−3 kg. To complete the wiring, 6.79×10−5 kg of solder is added to the chip. Compute the final mass of the circuit.
A person jogs eight complete laps around a quarter-mile trac…
A person jogs eight complete laps around a quarter-mile track in a total time of 12.5 min. Determine the total distance in meter (1 mile = 1609 km)
A boy on the edge of a vertical cliff 20m high throws a ston…
A boy on the edge of a vertical cliff 20m high throws a stone horizontally outward with a speedof 20m/s. It strikes the ground at what horizontal distance from the foot of the cliff? Use g = 10m/s2.
Evaluate (5.7×106 kg) × (6.3×10−2 m/s2) and express the answ…
Evaluate (5.7×106 kg) × (6.3×10−2 m/s2) and express the answer in scientific notation.
Average speed equals distance divided by time. On a journey…
Average speed equals distance divided by time. On a journey to the Alpha Centauri star system, a space probe travels a distance of 4.12×1016 meters in 1.73×1010 seconds. (a) Find its average speed in meters per second. (b) How long did the journey take in years? Use 365.24 days per year. 2e-12%
Which one of the following quantities is NOT a vector?
Which one of the following quantities is NOT a vector?
A horse gallops a distance of 10 kilometers in a time of 30…
A horse gallops a distance of 10 kilometers in a time of 30 minutes. It’s average speed is