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posledela
3 years ago
9

which of the following are needed to determine how long an object is in projectile motion? tell me all that apply. a. the initia

l velocity of the object b. the mass of the object c. the horizontal distance the object travels as it falls d. the vertical distance the object travels as it falls
Physics
1 answer:
sertanlavr [38]3 years ago
4 0
Distance that the object falls
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The terrestrial planets and the giant planets have different compositions because
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The terrestrial planets are closer to the sun.

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4 0
3 years ago
A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s. What is his wavelength at this speed if his mass is 84.5 kg?
crimeas [40]

Answer:

Wavelength λ = 7.31 × 10^-37 m

Explanation:

From De Broglie's equation;

λ = h/mv

Where;

λ = wavelength in meters

h = plank's constant = 6.626×10^-34 m^2 kg/s

m = mass in kg

v = velocity in m/s

Given;

v = 24 mi/h

Converting to m/s

v = 24mi/h × 0.447 m/s ×1/(mi/h)

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Substituting the values into the equation;

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λ = 7.31 × 10^-37 m

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3 years ago
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