(a) find the de broglie wavelength of electrons moving with a speed of 1.63 × 105 m/s. (b) suppose these electrons are described by a wave packet of width 2.65 nm. what range of values will most likely result from a measurement of the speed of the electrons

The position of a dragonfly that is flying parallel to the ground is given as a function of time by r⃗ =[2.90m+(0.0900m/s2)t2]i^− (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree clockwise from the x-axis? b: at the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? c : at the time calculated in part (a), what is the direction of the acceleration vector of the insect?

Ascientist is tracking an object orbiting the sun that is found between mars and jupiter. in order to classify the object as an asteroid, it must be at least

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?