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klasskru [66]
3 years ago
10

A -0.06 charge that moves downward is in a uniform electric field with a strengthened of 200 N/C. What is the magnitude and dire

ction of the force on the charge
Physics
1 answer:
Nookie1986 [14]3 years ago
5 0

Answer:

The magnitude of the force is 12 N Upwards

Explanation:

The force on a positive charge will be in the same direction as the field, but the force on a negative charge will be in the opposite direction to the field. Thus the direction of the force is upward.

Given;

magnitude of charge, q = 0.06 C

magnitude of electric field, E = 200 N/C

The magnitude of the force is given by;

F = qE

F = 0.06 x 200 N/C

F = 12 N Upwards

Therefore, the magnitude of the force is 12 N Upwards

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To protect their young in the nest, peregrine falcons will fly into birds of prey (such as ravens) at high speed. In one such ep
I am Lyosha [343]

Answer:

Part a)

\theta = 48 degree

Part b)

v = 13.45 m/s

Explanation:

Part a)

mass of the Falcon bird is given as

m = 600 g

initial speed of the bird is

v_i = 20 m/s

final speed of the bird is given as

v_f = 5 m/s (opposite direction)

So here the impulse given by falcon bird is given as

I = m(v_f - v_i)

I = 0.600(20 + 5)

I = 15 kg m/s

now the final momentum of Raven bird in perpendicular direction is given as

I = mv_y

15 = 1.50 v_y

v_y = 10 m/s

now the change in the angle of the raven bird is given as

tan\theta = \frac{v_y}{v_x}

tan\theta = \frac{10}{9}

\theta = 48 degree

Part b)

Final speed of the raven bird is given as

v^2 = v_x^2 + v_y^2

v^2 = 9^2 + 10^2

v = 13.45 m/s

5 0
3 years ago
Stated the types of material a scrap heap magnet can and cannot move. HELP ME PLEASEEEE!!!! I NEED THE ANSWER IMMEDIATELY!!!!!
amm1812
A scrap heap magnet can move Ferrous metals, so any metals containing Iron, stainless steel, steel etc.
And it cannot move anything that is not magnetic

(I hoped this helped ;) And good luck!)
8 0
3 years ago
A pesky rabbit has been feeding on Mrs. Cromwell’s prized flowers. In order to put an end to this she devised the simple trap be
Ivahew [28]

Answer:

The minimum diameter of the stick to bear the normal stress as 100 psi is 0.1785 in.

Explanation:

Taking moment along point A

\sum M_A=0\\F_{BC} sin 60 \times 48 -13 \times 8=0\\F_{BC}=2.502 lb_f

Also normal stress is given as 100 psi

Now

                      \sigma=\frac{F}{A}\\100=\frac{2.502}{\pi \frac{d^2}{4}}\\d^2 =\frac{4 \times 2.502}{100 \pi }\\d^2=0.031856\\d=\sqrt{0.031856}\\d=0.1785 inch

The minimum diameter of the stick to bear the normal stress as 100 psi is 0.1785 in.

4 0
3 years ago
What is the velocity of an 80 kg person skating across the ice with a kinetic energy of 16, 000 joules?
marysya [2.9K]

Answer:

V = 20 m/s

Explanation:

Given the following data;

Mass = 80kg

Kinetic energy = 16,000 joules

To find the velocity;

Kinetic energy can be defined as an energy possessed by an object or body due to its motion.

Mathematically, kinetic energy is given by the formula;

K.E = \frac{1}{2}MV^{2}

Where;

K.E represents kinetic energy measured in Joules.

M represents mass measured in kilograms.

V represents velocity measured in metres per seconds square.

Substituting into the formula, we have;

16000 = ½*80*V²

16000 = 40V²

V² = 16000/40

V² = 400

Taking the square root of both sides, we have;

V = 20 m/s

3 0
3 years ago
What would be a good reason to increase friction between surfaces? to allow objects to slide past each other easily to reduce we
Lelu [443]
So basically the objects would be sandpaper and smooth metal, the sandpaper can indirectly touch the metal since it’s so smooth and it won’t cause any temp change either
5 0
3 years ago
Read 2 more answers
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