Energy is able to be transferred from one into another
Answer:
10 m/s²
Explanation:
Acceleration: This the rate of change of velocity. The unit of acceleration is m/s²
From the question,
a = (v-u)/t.................... Equation 1
Where a = acceleration of the cheetah, v = final velocity of the cheetah, u = initial velocity of the cheetah, t = time.
Given: u = 0 m/s, v = 25 m/s, t = 2.5 s.
Substitute these values into equation 1
a = (25-0)/2.5
a = 25/2.5
a = 10 m/s²
Hence the acceleration of the cheetah = 10 m/s²
Answer:
A. the frequency decreases.
Explanation:
The wavelength of electromagnetic radiation depends on the speed of radiation and the frequency of the radiation.
The speed of the radiation is equal to the speed of light and is given as the product of its frequency and wavelength.
If 
is the speed of electromagnetic radiation, 
is its frequency, and 
is its wavelength, then:
Therefore, wavelength is inversely proportional to its frequency.
Hence, as wavelength increases, the frequency decreases.
Answer:
120N
Explanation:
Newton's second law formula: F= ma
given that m = 10 kg, a = 12 m/s^2
F = ma = 10 kg * 12 m/s^2 = 120 kgm/s^2 = 120 N
