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2 years ago

Heat is:_________

Physics

1 answer:

zysi [14]2 years ago

4 0

Answer:

The answer is C ..

EXPLANATION:-

The amount of energy transferred between objects as a result of a difference in temperature.

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A car drives for 30 km with a speed of 30m/s. How much time does it take the car to travel this distance?

Artist 52 [7]

   Time = (distance) / (speed)

   = (30 km) / (30 m/s)

   = (30,000 m) / (30 m/s)

   = (30,000 / 30) sec

   =    1,000 seconds

   =    16 minutes 40 seconds

6 0

3 years ago

Violet light (410 nm) and red light

Leokris [45]

Answer:10.03

Explanation:acellus

7 0

2 years ago

A balloon is ascending at 12.4m/s at a height of 81.3m above the ground when a package is dropped. a) How long did it take to re

tankabanditka [31]

Answer:

3secs

Explanation:

Given the following parameters

height H= 81.3m

Velocity v = 12.4m/s

Required

Time it take to reach the ground

Using the equation of motion

H = ut+1/2gt²

81.3 = 12.4t + 1/2(9.8)t²

81.3 = 12.4t + 4.9t²

4.9t² + 12.4t - 81.3 = 0

Using the general formula to find t

t = -12.4±√12.4²-4(4.9)(-81.3)/2(4.9)

t = -12.4±√153.76+1593.48/2(4.9)

t = -12.4±√1747.24/9.8

t = -12.4+41.8/9.8

t = 29.4/9.8

t = 3secs

Hence it took 3secs to reach the ground

5 0

3 years ago

What conversion factor is used to convert 20 cm to m

Anastaziya [24]

The conversion factor you use is 100 cm = 1 m.
You can divide 20 by 100 to get the answer.
20 cm/100 cm =.2 m
Hope this helped!

7 0

3 years ago

What is the speed of a bobsled whose distance-time graph indicates that it traveled 100 m in 25 s?

larisa86 [58]

As per the question, the distance travelled by bobsled [s] = 100 m

The time taken by the bobsled to travel that distance [t] = 25 s

We are asked to calculate the speed of the bobsled.

The speed of the bobsled is calculated as -

$speed\ =\ \frac{distance}{time}$

$v\ =\ \frac{s}{t}$

$=\frac{100\ m}{25\ s}$

$=\ 4\ m/s$

Hence, the correct answer to the question is A. 4 m/s.

8 0

3 years ago