The towel has better blank

Physics

1 answer:

koban [17]3 years ago

5 0

Answer:

Explanation:

Towels Absorb

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a catapult is used to project a stone of mass 50g. if the rubber of the catapult has an elastic constant of 200N/m and was stret

Anna35 [415]

Answer:

3.16 m/s

Explanation:

Elastic energy in the rubber = kinetic energy of the stone

EE = KE

½ kx² = ½ mv²

v = √(kx²/m)

Given k = 200 N/m, x = 0.05 m, and m = 0.050 kg:

v = √(200 N/m (0.05 m)² / 0.050 kg)

v = √10 m/s

v ≈ 3.16 m/s

Round as needed.

4 0

3 years ago

Read 2 more answers

Two parallel wires run in a north-south direction. The eastern wire carries 15.0 A northward while the western wire carries 6.0

djyliett [7]

Answer:

The magnitude and direction of the magnetic field is 2.7 x 10⁻⁵ T upwards

Explanation:

Given;

current in the eastern wire, $I_e$ = 15 A

current in the western wire, $I_w$ = 6 A

distance between the wires, d = 30 cm = 0.3 m

The magnetic field at a distance R from a line current I, is given as;

$B = \frac{\mu_o I }{2 \pi R}$

The magnetic field between the wires, are in opposite directions, and since the currents are also in opposite directions, the magnetic fields of the wires will be added.

The total field = magnetic field (east) + magnetic field (west);

$B = \frac{\mu_o I_e}{2 \pi R_e} + \frac{\mu_0 I_w}{2 \pi R_w} \\\\B = \frac{\mu_o}{2\pi} (\frac{I_e}{R_e} + \frac{I_w}{R_w})$

where;

$R_w$ is the distance of the field from west = 10cm = 0.1 m

$R_e$ is the distance of the field on east from west = d - 10cm = 30cm - 10cm = 20cm = 0.2 m

The total magnetic field is;

$B = \frac{\mu_o}{2\pi} (\frac{I_e}{R_e} + \frac{I_w}{R_w})\\\\B = \frac{4\pi *10^{-7}}{2\pi} (\frac{15}{0.2} + \frac{6}{0.1})\\\\B = 2*10^{-7}(75 + 60)\\\\B = 2*10^{-7}(135)\\\\B = 2.7*10^{-5} \ T$