Two engines are turned on for 763 s at a moment when the velocity of the craft has x and y components of v0x = 6380 m/s and v0y = 6770 m/s. while the engines are firing, the craft undergoes a displacement that has components of x = 4.50 x 106 m and y = 7.27 x 106 m. find the (a) x and (b) y components of the craft's acceleration.

Explanation:

Given

initial velocity component of engines is

time period of engine running=763 s

Displacement in

Using in x and y direction

In y direction

x component

y component

a.x component of acceleration of craft=

b.y component of acceleration of craft=

Explanation:

We are given that two engines are turned on for 763 s.

x component of initial velocity of craft=

y component of initial velocity of craft=

After firing,

x component of displacement of craft=

y component of displacement of craft=

We know that velocity=

x component of final velocity of craft=

y component of final velocity of craft=

We know that acceleration =

a.x component of acceleration of craft=

b.y component of acceleration of craft=

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27

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