Answer: B) 30 km/h
Explanation:
The speed of Ben and Jerry on their way to the store is given by

where
d is the distance they covered
t is the time they took
From the graph, we see that Ben and Jerry travelled for a distance of d=60 km in a time of t=2 h, so their speed is

T<span>he relationship between wavelength and frequency is inverse.
This is as the wavelength increases the frequency decreases and as the wavelength decreases the frequency increases.
The light meets this equation that reflects the relationship between wavelength and frequency:
c = wavelength * frequency => wavelength = c / frequency
where c is the constant speed of light.
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Answer:
V = E*d
D = 1.5 cm * [1 m / 100 cm] = 0.015m
V = 2.9^10^6 N/C * 0.015 m
V = 1.93 * 10^9 V
The units don't agree in any simple way, but the formula is correct, and it does work.
Explanation:
Answer:
A_negative
B_positive
C_positive
D_positive
E_negative
Explanation:
according to the law of electrostatic which is
like charge repels and unlike charge attract.