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Lynna [10]
3 years ago
6

Write a sentence or short paragraph that defines and explains an adaptation

Physics
1 answer:
alexdok [17]3 years ago
3 0
Adaptation is when a living thing changes its behavior to survive in its surroundings.
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A 0.0400-g positive charged ball with charge q = 6.40 μC is resting on a flat, frictionless horizontal surface. For a time of t
Leto [7]

Answer:

The height is 0.1014 m

Explanation:

Given that,

Mass = 0.0400 g

Charge q= 6.40\ \mu C

Time t = 0.0420 s

Electric field E=7.80\times10^{2}\ N/C

We need to calculate the electric force on the particle

Using formula of electric force

F=qE

Put the value into the formula

F_{e}=6.40\times10^{-6}\times7.80\times10^{2}

F_{e}=0.004992= 0.499\times10^{-2}\ N

We need to calculate the gravitational force

Using formula of force

F=mg

Put the value into the formula

F_{g}=0.0400\times10^{-3}\times9.8

F_{g}=0.000392 = 0.392\times10^{-3}\ N

We need to calculate the net force

F_{net}=F_{e}-F_{g}

F_{net}=0.499\times10^{-2}-0.392\times10^{-3}

F_{net}=0.004598= 0.4598\times10^{-2}\ N

We need to calculate the acceleration

Using newton's law

F = ma

a = \dfrac{F}{m}

a=\dfrac{0.4598\times10^{-2}}{0.0400\times10^{-3}}

a =114.95\ m/s^2

We need to calculate the height

Using equation of motion

s = ut+\dfrac{1}{2}at^2

s=0+\dfrac{1}{2}\times114.95\times(0.0420)^2

s=0.1014\ m

Hence, The height is 0.1014 m

3 0
3 years ago
a certain car is capable of accelerating at a rate of 10.60m/s^2. how long does it take for this car to go from a speed of 55/mi
irina [24]
Use the equation:
v = u + at
because it has all the variables given and need to find. First you must make sure units are the same. Acceleration is given in m/s^2. Check to make sure this is correct before using the following solution. Convert acceleration from meters per second squared to miles per hour squared.

look up conversion meters to miles
1 mile = 1609.34 meters
10.60 m/s^2 * 1mile/1609.34m = 0.0069 mi/s^2
there are 3600 seconds in an hour, then there are 3600s*3600s in 1 hr^2
0.0069 mi/s^2 * 3600s*3600s/hr^2 = 85362 mi/hr^2

Then using: v = u +at
60 = 55 + 85362t
60 - 55 = 85362t
5 = 85362t
5/85362 = t
5.9 x 10^-5 hr = t
very small value in hours, multiply by 3600 to convert to seconds.

5.9 x 10^-5 hr * 3600s/hr = 0.21 seconds
7 0
3 years ago
A dust particle floats in front of a silent loudspeaker as shown in the figure. The loudspeaker is turned on and plays a constan
dybincka [34]

Answer:tbh idk

Explanation:

tbh idk

8 0
3 years ago
Read 2 more answers
Calculating acceleration worksheet
MrRissso [65]
Yes bc math, numbers and more
8 0
3 years ago
What was Thomas Edison first major invented? ​
marysya [2.9K]

Answer:

Thomas Edisons most famous invention was the phonograph

Thomas Edison announces his invention of the phonograph, a way to record and play back sound. Edison stumbled on one of his great inventions—the phonograph—while working on a way to record telephone communication at his laboratory in Menlo Park, New Jersey.

Explanation:

Hope I helped

8 0
3 years ago
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