A tennis ball travelling at a speed of 46m/s with a mass of 58kg. Calculate the kineticenergy
1 answer:
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Answer:
1320336992.2512 m²
1320.33 kilometers or 509.79 miles
Explanation:
Energy transferred by the sun
Energy required by the United States is (assumed)
Power
Area
Area of the solar collector would be 1320336992.2512 m²
Converting to km²
Converting to mi²
Each side of the square would be 1320.33 kilometers or 509.79 miles
Explanation:
(a) Displacement of an object is the shortest path covered by it.
In this problem, a student is biking to school. She travels 0.7 km north, then realizes something has fallen out of her bag. She travels 0.3 km south to retrieve her item. She then travels 0.4 mi north to arrive at school.
0.4 miles = 0.64 km
displacement = 0.7-0.3+0.64 = 1.04 km
(b) Average velocity = total displacement/total time
t = 15 min = 0.25 hour
Hence, this is the required solution.
Answer:
halved
Explanation:
The velocity of the a wave is obtained by multiplying the frequency and wavelength.
Where
v = Velocity
f = Frequency
= Wavelength
The velocity here is constant. So, if the frequency is doubled the wavelength is halved.