Physics, 26.02.2020 01:21 bre563

A crate is pulled to the right with a force of 73.3 N, to the left with a force of 115.8 N, upward with a force of 606.7 N, and downward with a force of 247.6 N. What is the net external force in the x direction? Answer in units of N.

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Answer from: alexandramendez0616

-42.5 N

Explanation:

We are given that

F_1=73.3 N (right)

F_2=115.8 N (left)

F_3=606.7 N (upward)

F_4=247.6 N (downward)

We have to find the net external force in the x- direction.

Net external force along x- direction= F_x=F_1-F_2

F_x=F_1-F_2=73.3-115.8=-42.5 N

Net external force along y- direction= F_y=F_3-F_4

F_y=F_3-F_4=606.7-247.6=359.1 N

Hence, the net external force in the x- direction=-42.5 N

Answer from: Quest

given data:

determine the horse power (h.p) = ?

force applied to move the box(f) = 10 pounds,

box lifted from a distance (d) = 3 feet

time taken to lift (t) = 10 sec,

the horse power is defined as amount of work required to move a load. the horse power is equal to 550 foot-pound per second

1 h.p = 550 foot-pound/second

it can also be defined as the the load that need to be move a body for certain distance in a certain amount of time.

mathematically,

h.p = (force × distance)/ time

= (10 × 3)/ 10

= 30/10

= 3 foot -pound/sec

hence, the horse power is needed to move the box is 3 foot-pound/second

important note: 1 h.p = 550 foot-pound/second = 746 watts

Answer from: Quest

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:

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A crate is pulled to the right with a force of 73.3 N, to the left with a force of 115.8 N, upward w...

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