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NNADVOKAT [17]
4 years ago
13

You are driving home from school steadily at for 180 km. It then begins to rain and you slow to You arrive home after driving 4.

5 h. (a) How far is your hometown from school
Physics
1 answer:
nata0808 [166]4 years ago
6 0

Answer:

Explanation:

Question is incomplete

Assuming the question you have asked is

You are driving home from school steadily at 95 km/h for 180 km. It then begins to rain and you slow to 65 km/h. You arrive home after driving 4.5 h.

given,

speed of 95 km/h for 180 km

due to rain

speed is reduced to 65 km/h

distance traveled in 4.5 hour

time taken to travel 180 km

d = s x t

t = \dfrac{180}{95}

     t = 1.9 hr

distance traveled in time, t' = 4.5-1.9 = 2.6 hr

Speed of vehicle = 65 Km/h

d' = s x t'

d' = 65 x 2.6

d'= 169 Km

total distance your hometown from school

D = d + d'

D = 180 + 169

D = 349 Km

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Answer:

Explanation:

Electrical energy = potential x charge

potential = 12V ,

Charge = 95 amp-hours

= 95 x 60 x 60 coulomb

= 342000 coulomb

Electrical energy stored in battery  = 342000 x 12

= 4104000 J

= 4.1 x 10⁶ J .

6 0
3 years ago
A diver shines a flashlight upward from beneath the water (n=1.33) at a 36.2° angle to the vertical. At what angle does the ligh
horrorfan [7]

Answer:

The flashlight leaves the water at an angle of 51.77°.

Explanation:

if n1 = 1.33 is the refractive index of water and ∅1 is the angle at which the flashlight shine beneath the water, and n2 = 1.0 is the refractive index of air and ∅2 is the angle the flashlight leaves the water.

Then, according to Snell's law :

n1×sin(∅1) = n2×sin(∅2)

sin(∅2) = n1×sin(∅1)/n2

           = (1.33)×sin(36.2)/(1.0)

           = 0.7855055×379

     ∅2 = 51.77°

Therefore, the flashlight leaves the water at an angle of 51.77°.

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What is magnet made of
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3 years ago
A spring has a relaxed length of 35 cm (0.35 m) and its spring stiffness is 12 N/m. You glue a 66 gram block (0.066 kg) to the t
Sonbull [250]

We have that the value for y is

y=0.12376m

 

From the Question we are told that

Relaxed length of 35 cm (0.35 m)

Spring stiffness is 12 N/m.

Glue a 66 gram block (0.066 kg)

Total length is l_t=16 cm

Block during a 0.24-second interval

Generally the equation for the Force of spring of block  is mathematically given as

F_{spring}=kx\\\\\ F_{spring}=12*(0.35-0.16)\\\\ F_{spring}=2.28N

Generally

F_{elastic}=-mg\\\\F_{elastic}=-0.066*9.8\\\\F_{elastic}=-0.6468N

Generally,Net Force

F_{net}=F_{spring}-F_{elastic}\\\\F_{net}=2.28N-(-0.6468N)\\\\F_{net}=2.9268N

Generally,Velocity of block

V_y=\frac{py}{m}

Where

Py= F_{net}*dt\\\\Py= 2.9268*0.08\\\\Py=0.234144

Therefore

V_y=\frac{0.234144}{0.066}\\\\V_y=3.547m/s

Generally the equation for the Velocity of block   is mathematically given as

Vy=\frac{yf-yt}{t-t_0}\\\\y=(3.547(0.08-0))-0.16

y=0.12376m

For more information on this visit

brainly.com/question/22271063?referrer=searchResults

4 0
3 years ago
At what point in a projectile’s trajectory does it experience a minimum velocity?
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Minimum velocity occurs at the top of the trajectory, where
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speed (which doesn't change).
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