The wavelength of the wave which is travelling along right with speed of 0. 5 m/s time 4 second point is 2.
<h3>What is the speed of wave?</h3>
Speed of wave is the rate by which the wave travels. It can be described as the distance cover by the crest or thrust of it per unit of time. It can be calculated with the following formula,

Here, (f) is the frequency and (λ) is the wavelength.
The frequency is inverse of time. Thus, the value of frequency in time t is,

The speed of the wave is 0.5 m/s. Put the values in the formula,

Thus, the wavelength of the wave which is travelling along right with speed of 0. 5 m/s time 4 second point is 2.
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Answer:
a) 316880878140.2895 Joules
b) 1056.26 Joules
c) 372.80103310622 km²
Explanation:
Energy consumption

Average rate of electrical energy consumption is 316880878140.2895 Joules
Total population = 300 million

Each person consumes 1056.26 Joules.
Efficiency = 0.85
Power from Sun

Area

Converting to km²

Area required to collect the electrical energy used in the United States is 372.80103310622 km²
Answer:
(a) 
(b) (5.05 m, 16.93 degrees wrt x-axis)
Explanation:
Given:
= (3.00 m, 315 degrees wrt x-axis)
= (4.50 m, 53.0 degrees wrt x-axis)
Let us first fond out vector D and E in their rectangular form.

Similarly,

Part (a):
We can write the resultant vector R as below:

Part (b):

Since both the components of the resultant lie on the positive x and y axes. So, the resultant makes an acute angle with the positive x-axis.
So, R = (5.05 m, 16.93 degrees wrt x-axis)
The answer is <span>B.19 newtons ..................
Hope this helps ♥</span>
Answer:
2538.46N
Explanation:
Parameters given:
Initial speed, u = 0 m/s
Final velocity, v = 240 m/s
Time, t = 0.0052 s
Mass of club, m = 55g = 0.055 kg
First we find the acceleration:
a = (v - u)/t
a = (240 - 0)/0.0052
a = 46153.85 m/s²
Average force can then be found:
F = m*a
F = 0.055 * 46153.85
F = 2538.46 N