3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Physics

1 answer:

Helga [31]3 years ago

7 0

The third hour was positive acceleration and the second hour was negative acceleration

You might be interested in

Jim travelled the first 3 hours of his journey at speed of 60 mph and the remaining 5 hours at 24 mph how long is the whole jour

frosja888 [35]

Distance of first instance = speed * Time
= 60 * 3 = 180 miles

Distance of second instance = speed * Time
= 24 * 5 = 120 miles

So, Total Distance = 180 + 120 = 300 miles

In short, Your Answer would be 300 miles

Hope this helps!

4 0

3 years ago

Can someone please help me understand why i feel like no one cares and why i feel the need to cry my self to sleep or why i feel

dexar [7]

I’m very sorry that you feel like this love it gets better I promise I didn’t think that it would either but it did and it will for you too

3 0

3 years ago

Read 2 more answers

How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential t

77julia77 [94]

Answer:The kinetic energy will decrease.

Explanation:As potential energy increases kinetic energy will increase, as kinetic or potential energy decreases, the kinetic or potential energy will decrease

7 0

3 years ago

A soap bubble, when illuminated with light of frequency 5.27 Hz × 1014 Hz, appears to be especially reflective. If it is surroun

denis23 [38]

Answer:

$1.07004\times 10^{-7}\ m$

Explanation:

$n_s$ = Refractive index of bubble = 1.33

f = Frequency of light = $5.27\times 10^{14}\ Hz$

c = Speed of light = $3\times 10^8\ m/s$

The wavelength of light is given by

$\lambda=\dfrac{2n_st}{m-\dfrac{1}{2}}$

Wavelength is also given by

$\lambda=\dfrac{c}{f}$

m = 1 for minimum thickness

$\dfrac{c}{f}=\dfrac{2n_st}{m-\dfrac{1}{2}}\\\Rightarrow t=\dfrac{m-\dfrac{1}{2}c}{2n_sf}\\\Rightarrow t=\dfrac{(1-\dfrac{1}{2})\times 3\times 10^8}{2\times 1.33\times 5.27\times 10^{14}}\\\Rightarrow t=1.07004\times 10^{-7}\ m$

The minimum thickness is $1.07004\times 10^{-7}\ m$

4 0

3 years ago

If a car has a mass of 1,000 kilograms, and a velocity of 35 m/s. What is its momentum?

fenix001 [56]

$\vec{p}=m\vec{v}\\p = 1000 * 35=35000[\frac{kg*m}{s}]$

7 0

3 years ago