Question
The time period of a pendulum when taken to the Moon
would:Solution
Since the pendulum rate will increase with an increase in gravity, and local gravity varies with latitude and elevation on Earth, pendulum clocks must be readjusted to keep time after a move. For example, a pendulum clock moved from sea level to 4000 feet will lose 16 seconds per day.
Find area of a sector of radius 14 cm with central angle 90°. (π = 22/7)
In ΔABC, PQ is parallel to BC If AP: PB= 3:5 and AQ= 3 cm, AC is equal to?
∆ABC and ∆DEF are similar and their areas are respectively 49cm2 and 64cm 2 . If EF = 12 cm BC is?
- Length of a chord in a circle of radius 'r' cm, is 24 cm and distance between chord and centre of the circle is 35 cm. Find the value of (6r - 80).
In the given figure CD is parallel to AB then ∠y is?
- Two chords, AB and CD, of a circle intersect at an external point E. Given that the lengths of BE and DE are 12 cm and 8 cm, respectively, and the total le...
The length of the each side of an equilateral triangle is 7√3 cm . The area of circumcircle, (cm 2 ) is
If the points P(2, 3), Q(5, a) and R(6, 7) are co-linear, then find the value of 'a'.
Find the difference between angle and its complement if the angle is four-fifth of its complement.
