Answer:
6ms^-1
Explanation:
Given that the frequency difference is
( 563- 544) = 19
So alsoThe wavelength of each wave is = v/f = 344 /544
and there are 19 of this waves
So it is assumed that each motorcycle has moved 0.5 of this distance
in one second thus the speed of the motorcycles will be
=> 19/2 x 344/544 = 6.0 m/s
A thermogram<span> enables the human eye to "see" light in the infrared range of the electromagnetic spectrum.</span>
The five planets that you can see from Earth without a telescope are Mercury, Venus, Mars, Jupiter and Saturn.
Answer: Final temperature of a gold nugget will be 297 K
Explanation:
The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

q = heat released = -4.85 kJ = -4850 J
m = mass of metal = 376 g
= final temperature of metal = ?
= initial temperature of metal = 398 K
c = specific heat of metal =



Thus the final temperature of a gold nugget will be 297 K
Answer:
Explanation:
The inertia of the ketchup will keep it from moving if it isn't too tightly adhered to the sides of the moving bottle.