4 years ago

True or False The greater the speed of an object, the less kinetic energy it possesses.

Physics

2 answers:

oksano4ka [1.4K]4 years ago

7 0

That Is A True Statement

Anettt [7]4 years ago

3 0

That is true because if the object is moving at Forceful speeds than it will lose more of its kinetic energy

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The cockroach Periplaneta americana can detect a static electric field of magnitude 8.50 kN/C using their long antennae. If the

otez555 [7]

Answer:

0.647 nC

Explanation:

The force experienced by a charge due to the presence of an electric field is given by

$F=qE$

where

q is the charge

E is the magnitude of the electric field

In this problem, each antenna is modelled as it was a single point charge, experiencing a force of

$F=5.50\mu N = 5.50\cdot 10^{-6} N$

Therefore, if the electric field magnitude is

$E=8.50 kN/C = 8500 N/C$

Then the charge on each antenna would be

$q=\frac{F}{E}=\frac{5.50\cdot 10^{-6} N}{8500 N/C}=6.47\cdot 10^{-10} C = 0.647 nC$

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4 years ago

A young woman named kathy kool buys a sports car that can accelerate at the rate of 5.37 m/s 2 . she decides to test the car by

ohaa [14]

As the stan moves 0.94 s before with an acceleration 4.12 m/s^2

so the distance moved by it

$d = \frac{1}{2}at^2[tex]d = \frac{1}{2}*4.12*0.94^2$

$d = 1.82 m$

speed gained by the car is given as

$v = v_i + at$

$v = 4.12* 0.94 = 3.873 m/s$

now the relative speed of them is given as

$v_r = 3.873 - 0 = 3.873 m/s$

relative acceleration is given as

$a_r = 4.12 - 5.37 = -1.25$

now the distance between them is to be covered

$d = v_r * t + \frac{1}{2}a_r * t^2$

$1.82 = -3.873* t + \frac{1}{2}*1.25 * t^2$

by solving above equation we have

$t = 6.64 s$

so it will overtake after 6.64 s

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jasenka [17]

Answer:

hi poop

Explanation:

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Alisiya [41]

Well, half-life is the radioactivity of an identified isotope that decreases by half of the actual value.
So, your answer would be C.

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Sam and Ella are arguing at the baseball field. Sam says that if he throws a baseball with a greater speed, it will have a great

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Don’t still need the answers or are u done and is it on edge

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