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Gnom [1K]
3 years ago
9

A soccer ball is rolling across a soccer field. The system consists of the

Physics
1 answer:
neonofarm [45]3 years ago
5 0

Answer:

NEGATIVE

Explanation:

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After you pick up a spare, your bowling ball rolls without slipping back toward the ball rack with a linear speed of vi=2.62 m/s
Misha Larkins [42]

Answer:

vf = 4.01 m/s

Explanation:

According to the law of conservation of energy:

Kinetic\ Energy\ Lost\ by\ Ball = Potential\ Energy\ Gained\ by\ the\ Ball \\\frac{1}{2}m(v_f^2-v_i^2) = mgh\\\\ v_f^2-v_i^2 = 2gh\\v_f^2 = 2gh + v_i^2\\

where,

vf = final speed of ball at top of the ramp = ?

vi = initial speed of ball = 2.62 m/s

g = acceleration due to gravity = 9.81 m/s²

h = height = 0.47 m

Therefore,

v_f^2 = (2)(9.81\ m/s^2)(0.47\ m)+(2.62\ m/s)^2\\v_f = \sqrt{9.2214\ m^2/s^2+6.8644\ m^2/s^2}\\

<u>vf = 4.01 m/s</u>

5 0
3 years ago
A tree frog leaping upward off the tree branch is pulled downward by
jeka94

Answer:

Yeah  I think you're right

Explanation:

Because every obj is in motion till acted upon by a force(the branch)

4 0
3 years ago
Identify the stage in cellular respiration that produces carbon dioxide as a waste product
ollegr [7]
During cellular respiration, organisms use oxygen to turn glucose into carbon dioxide, water, and energy in the form of ATP. The process has three stages: glycolysis , the Krebs cycle, and the electron transport chain. Glycolysis in the cytoplasm ), breaks down 1 glucose into 2 pyruvate and 2 ATP. The Krebs cycle (in the mitochondrion's matrix), provides the hydrogen and electrons needed for the electron transport chain. Another 2 are formed here. The electron transport chain (on the inner mitochondrial membrane) forms 32 ATP through oxidative phosphorylation .
6 0
2 years ago
onsidering light at the two ends of the visible light spectrum, violet light has a _____ wavelength and a _____ photon energy th
Alenkasestr [34]

Answer:

Shorter, higher

Explanation:

6 0
2 years ago
What type of charge is used as the test charge to determine the direction of electric fields?
Dmitriy789 [7]

Answer:

B small positive charge

Explanation:

5 0
2 years ago
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