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Ugo [173]
2 years ago
5

A +2e charge is at the point (-1,0) mm in the x,y plane. A –e charge is at the point (0,1) mm. What is the electric field at the

origin? What would be the force on a +3e charge at this point? Give the x and y components for both the field and force
Physics
1 answer:
Gennadij [26K]2 years ago
4 0

Answer:

Let I and j be the unit vector along x and y axis respectively.

Electric field at origin is given by

E= kq1/r1^2 i + kq2/r2^2j

= 9*10^9*1.6*10^-19*/10^-6*(2i+ j)

= (2.88i + 1.44j)*10^-3 N/C

Force on charge= qE= 3*10^-19*1.6*(2.88i +1. 44 j) *10^-3

F= (1.382 i + 0.691 j) *10^-21

 

 Goodluck

Explanation:

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Mechanical energy is the sum of<br> energy and potential energy.
MAVERICK [17]

Answer:

True, the total amount of mechanical energy is merely the sum of the potential energy and the kinetic energy. This sum is simply referred to as the total mechanical energy.

Explanation: Hope it helps you:))))

have a good day

7 0
2 years ago
A bartender slides a beer mug at 1.6 m/s towards a customer at the end of a frictionless bar that is 1.1 m tall. The customer ma
Drupady [299]

Answer:

(a): the mug hits the floor 0.752m away from the end of the bar.

(b): the speed of the mug at impact are:

V= 4.87 m/s

direction= 70.82º below the horizontal.

Explanation:

Vx= 1.6 m/s

Vy=?

h= 1.1 m

g= 9.8 m/s²

t is the fall time

t=\sqrt{\frac{2*h}{g} }

t=0.47 sec

Vy= g*t

Vy= 4.6 m/s

V=\sqrt{Vx^{2} +Vy^{2}

V= 4.87 m/s

α= tan⁻¹(Vy/Vx)

α= -70.82º

6 0
3 years ago
Read 2 more answers
What must you do to calculate a meaningful value of distance from the following equation?
ss7ja [257]

Answer:

Convert all the times to either hours or seconds

Explanation:

One time unit is in hours, and the other is in seconds.  In order to do the math, the units need to be the same.  So you either need to convert hours to seconds, or seconds to hours.

5 0
3 years ago
Read 2 more answers
The following diagram shows various positions of the moon in its orbit around Earth. The image of the moon shows its phase as se
inysia [295]
<span>Three-fourths of the illuminated side of the moon be visible
from Earth when the moon is at position-B.  (choice-B)


Notice the particularly egregious screw-up on the drawing at the
"Third Quarter" position.  There, the drawing shows the illuminated 
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3 0
3 years ago
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Alvin paddled for 44 hours with a 33​-km/h current to reach a campsite. The return trip against the same current took 77 hours.
sveta [45]

Answer:

121km/h

Explanation:

Let speed of boat=xkm/h

Speed of water flow=33 km/h

Speed upstream=(x-33)km/h

Speed downstream=(x+33)km/h

Time=44 hrs

Time =77 hrs

We have to find the speed of boat.

Distance=Speed\times time

Using the formula

Upstream distance=Downstream distance

(x-33)\times 77=(x+33)\times 44

77x-2541=44x+1452

77x-44x=1452+2541

33x=3993

x=\frac{3993}{33}=121

Hence, the speed of boat=121km/h

8 0
3 years ago
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