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solmaris [256]
2 years ago
8

A skydiver jumps from an airplane and falls freely for 5 seconds. If the sky diver's velocity increases by 49 m/s during that ti

me, at which rate is the diver accelerating ?
Physics
2 answers:
Sergeeva-Olga [200]2 years ago
8 0

Acceleration  =  (change in speed)  /  (time for the change)

                       =      (49 m/s)   /   (5 seconds)

                       =       (49 / 5)  m/s  /  s

                       =            9.8 m/s² 
mihalych1998 [28]2 years ago
3 0
Your answer would be 9.8
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What do the different colors in a line spectrum represent? why are the spectra for each element unique?
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They typically represents different wavelengths of element due to its energy emission in the form of visible light. When an electron of that particular element move from a higher energy level down to a lower energy level, it gives off energy in the form of photon emission. Atom of a certain element has a unique electron arrangement thus it can considered that particular element's spectrum is unique.
8 0
3 years ago
Write the formula of mechanical advantage​
Zanzabum

Answer:

the formula of mechanical advantage is

MA = load / effort

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2 years ago
An object traveling in a straight line accelerates. What will definitely happen due to the acceleration?
Damm [24]
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<span>-- </span><span>The distance traveled in a certain time may increase or decrease.

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7 0
3 years ago
Read 2 more answers
Two uniform solid cylinders, each rotating about its central (longitudinal) axis, have the same mass of 3.56 kg and rotate with
Natali5045456 [20]

Answer:

(a) 3107.98 J

(b) 14530.6 J

Explanation:

mass, m = 3.56 kg

angular speed, ω = 179 rad/s

Moment of inertia of solid cylinder, I = 1/2 mr^2

where, m is the mass and r be the radius of the cylinder.

(a) radius, r = 0.330 m

I = 0.5 x 3.56 x 0.330 x 0.330 = 0.194 kgm^2

The formula for the rotational kinetic energy is given by

K = \frac{1}{2}I\omega ^{2}

K = 0.5 x 0.194 x 179 x 179 = 3107.98 J

(b) radius, r = 0.714 m

I = 0.5 x 3.56 x 0.714 x 0.714 = 0.907 kgm^2

The formula for the rotational kinetic energy is given by

K = \frac{1}{2}I\omega ^{2}

K = 0.5 x 0.907 x 179 x 179 = 14530.6 J

3 0
3 years ago
A baby carriage is rolling down a hill at 18 m/s. If the carriage has 90J of kinetic energy, what is the mass of the carriage? a
grin007 [14]

Answer:

why did the parents let go of their child-

Explanation:

A 5 kg, because 90 / 18 is 5

6 0
2 years ago
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