"Twice each second" means "2 per second". <em>Frequency = 2 Hz.</em>
<em>Period </em>= time for one bounce = <em>1 second</em>
Amplitude = distance between "not stretched" and "greatest stretch".
<em>Amplitude = 10 centimeters</em>
Answer:
Our seasons change because Earth tilts on its axis, and the angle of tilt causes the Northern and Southern Hemispheres to trade places throughout the year in receiving the sun's light and warmth most directly.
Explanation:
Barium cation has +2 charge and oxide anion has −2 charge
Answer:
Explanation:
u = 4.6 x 10^6 m/s
Let E be the electric field
s = 3.5 cm = 0.035 m
v = 0
a = qE / m
So use third equation of motion
v^2 = u^2 - 2 a s
0 = (4.6 x 10^6)^2 - 2 x q E / m x 0.035
21.16 x 10^12 = 2 x 1.6 x 10^-19 x E / (1.67 x 10^-27 x 0.035)
E = 3865 N/C
(a) The magnitude of electric field is 3865 N/C
(b) the direction of electric field is opposite to the direction of motion of proton, i.e., towards left.
(c) Let t be the time taken
v = u + a t
0 = 4.6 x 10^6 - (1.6 x 10^-19 x 3865) t / (1.67 x 10^-27)
t = 1.24 x 10^-5 sec
(d) For electron, the direction of electric field is same the direction of electron, i.e., rightwards.
Use third equation of motion
v^2 = u^2 - 2 a s
0 = (4.6 x 10^6)^2 - 2 x q E / m x 0.035
21.16 x 10^12 = 2 x 1.6 x 10^-19 x E / (9.1 x 10^-31 x 0.035)
E = 2.1 N/C