Answer:
0.34 s
Explanation:
Given that,
Initial speed of a ball, u = 5.8 m/s
It is kicked at an angle of 17.0° above the horizontal.
The vertical component of velocity will be,
Let it takes t time in the air before it lands on the ground again. It can calculated as :
So, it will take 0.34 seconds.
Answer:
21.5 m
Explanation:
A car has an initial speed of 31.4 km/hr
Convert to m/s
= 31.4 × 1000/3600
= 31,400/3600
= 8.722 m/s
Acceleration = 1.2 m/s^2
Time= 1.3 seconds.
Therefore the displacement can be calculated as follows
S= 8.722 × 1.3 + 1/2 × 1.2 × 1.3^2
= 11.34 + 1/2 × 20.28
= 11.34 + 10.14
= 21.5 m
Answer:
The higher the spring constant, the greater the elastic potential energy.
Actually Welcome to the concept of resistors,
The equivalent circuit is given as,
1/Rp = 1/3 + 1/6 + 1/9
1/Rp = 6+3+2/18
1/Rp = 11/18
Rp = 18/11 ==> 1.63 ==> 1.6 ohms
hence the equivalent resistance of the circuit is 1.6 ohms
Answer:
1300 m/s
Explanation:
Applying,
v = λf/2............... Equation 1
Where v = velocity or speed of wave, f = frequency of wave, λ = wavelength of wave.
From the question,
Given: f = 325 Hz, λ = (12×2/3) = 8 m
Substitute these values into equation 2
v = 325(8)/2
v = 1300 m/s.
Hence the standing wave speed is 1300 m/s
The right option is 1300 m/s
