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Serhud [2]
4 years ago
13

What is heat?

Physics
1 answer:
OLEGan [10]4 years ago
7 0
Well you need to have lots of heat
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What principle of light’s behavior can be used to make a far away object appear closer and also make a small object appear large
4vir4ik [10]
It would be refraction
3 0
3 years ago
Read 2 more answers
A person travels by car from one city to another with differem constan1 speeds between pairs of cities. She drives for 30.0 min
Montano1993 [528]

Answer:

a.52.9 km/h

b.90 km

Explanation:

We are given that

v_1=89km/h

t_1=30min

v_2=100km/h

t_2=12min

v_3=40km/h

t_3=45 min

Time spend on eating lunch and buying ga=15 min.

a.Total time=30+12+45+15=102 minute=\frac{102}{60}=1.7 hour

1 hour=60 minutes

Distance=speed\times time

d_1=v_1\times t_1=80\times\frac{30}{60}=40km

d_2=100\times \frac{12}{60}=20 km

d_3=40\times \frac{45}{60}=30 km

Total distance=d_1+d_2+d_3=40+20+30=90km

Average speed=\frac{total\;speed}{total\;time}

Using the formula

Average speed=\frac{90}{1.7}=52.9Km/h

b.Total distance between the initial and final city lies along the route=90 km

4 0
3 years ago
Electromagnetic radiation includes only visible light waves.<br><br> true or false
stealth61 [152]

The entire electromagnetic spectrum, from the lowest to the highest frequency (longest to shortest wavelength), includes all radio waves (e.g., commercial radio and television, microwaves, radar), infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.

False, There is other things aswell

3 0
2 years ago
Gravitational Potential Energy = mass x gravity x height
Blizzard [7]
M= gpe / gh
G= gpe / mh
H=gpe / mg

7 0
4 years ago
Read 2 more answers
if you use the compound pulley, you will need to pull twice the distance but with less force. the force you need is equal to one
algol13

Answer:

F= 25/2 = 12.5N

Explanation:

When you use a compound pulley the force required depends on the mechanical advantage of the compound pulley. This is known as rate of loss of distance or the ratio of the force to the load.

M.A = Effort distance /Load distance. OR M.A = Load/Effort

6 0
3 years ago
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