Answer:
d. All of these
Explanation:
work is said to be done when a force is applied to an object through a certain distance. the SI unit of workdone is joules or newton per meter
mathematically
workdone = force x distance.
from the answers, work is being done because there is force applied in a certain distance.
- from wagon is used to carry vegetables from a garden.
- pulley is used to get water from a well.
- hammer is used to remove a nail from a wall.
A 14 pin dual-in-line IC package[14 DIL] is an integrated socket which is most popular form of IC package and has a wide range of application in digital electronics.
The 14-pin DIL has two pairs per side and each pair contains seven connecting pins.
The pairs of pins are arranged linearly one after another.The typical dimensions of width is 6.5 mm and the typical dimension of length is 18 mm.
we are asked to calculate the typical distance between two adjacent pins.
The typical distance between two adjacent pins is calculated as-
[ans]
Part a)
Power rated on the elevator is given as
now the mass that is lifted above is given as
height of the elevator lifted is
now the potential energy is given as
now power is defined as rate of energy
so it will take 13.5 s to lift up
Part b)
Electrical energy used
so electrical energy used in this process will be 120050 J
Answer
given,
Length of pipe, L = 2.65 m
speed of sound, v = 343 m/s
Pipe is open end Pipe
a) Lowest frequency
condition, for open end pipe
For lowest frequency
n = 1
f₁ = 64.72 Hz
b) For second frequency in bugle
n = 2
f₂ = 129.43 Hz
for n = 3
f₃ = 194.16 Hz