Two water jets are emerging from a vessel at a height of 50 centimeters and 100 centimeters. if their horizontal velocities at the point of ejection are 1 meter/second and 0.5 meters/second respectively, calculate the ratio of their horizontal distances of impact. a. 1: 04 b. 1: 234 c. 2: 01 d. 1.41: 1 e. 3: 02

The correct answer is option (D).

Explanation:

Vertical distance  of first water jet =

Vertical distance of second water jet =

Horizontal velocity of first water jet =

Horizontal velocity of second water jet =

Vertical distance of first water jet:

...(1)

Similarly, Vertical distance of second water jet:

...(2)

Horizontal distance of first water jet:

There is no acceleration in horizontal direction.

...(3)

Horizontal distance of second water jet:

...(4)

On dividing (3) and (4):

(from (1) and (2))

Hence, the correct answer is option (D).

the answer to this question is 60 n

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation: