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3 years ago

Please help me pls I beg pls pls pls please please PLEAAAAAAAAASSSSSSEEE

Physics

1 answer:

morpeh [17]3 years ago

5 0

Jackson sells lemonade for $2 per cup. he paid $20 for supplies to sell 5 cups. What is the domain for this scenario

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The number three ball moves off with a velocity of 5 m/s. What is the final velocity and direction of the eight ball?

Keith_Richards [23]

7 and a half millimeters long

6 0

3 years ago

A 20 kω resistor is connected in series with an initially uncharged 100 μf capacitor and a 5 v battery. What is the charge on th

madam [21]

Hi there!

We can use the equation for the charge of a charging capacitor:
$q(t) = C\epsilon( 1 - e^{-\frac{t}{RC}})$

Using Capacitor equations:
$C = \frac{Q}{V}}\\\\Q = CV$

Therefore, Cε equals the steady-state charge of the capacitor (the function approaches this value as t ⇒ ∞.

We can plug in the givens and solve.
$\epsilon = 5 V\\\\C = 100\mu F = 0.0001 F$

$Q = C \epsilon = (0.0001)(5) = \boxed{0.0005 C}$

4 0

2 years ago

A charge q = 3 × 10-6 C of mass m = 2 × 10-6 kg, and speed v = 5 × 106 m/s enters a uniform magnetic field. The mass experiences

NeX [460]

Answer:

Magnetic field, B = 0.004 mT

Explanation:

It is given that,

Charge, $q=3\times 10^{-6}\ C$

Mass of charge particle, $m=2\times 10^{-6}\ C$

Speed, $v=5\times 10^{6}\ m/s$

Acceleration, $a=3\times 10^{4}\ m/s^2$

We need to find the minimum magnetic field that would produce such an acceleration. So,

$ma=qvB\ sin\theta$

For minimum magnetic field,

$ma=qvB$

$B=\dfrac{ma}{qv}$

$B=\dfrac{2\times 10^{-6}\ C\times 3\times 10^{4}\ m/s^2}{3\times 10^{-6}\ C\times 5\times 10^{6}\ m/s}$

B = 0.004 T

B = 4 mT

So, the magnetic field produce such an acceleration at 4 mT. Hence, this is the required solution.

4 0

3 years ago

The vibrations of a string fixed at both ends are represented by y=16sin(πx/15 )cos(96πt). Where x and y are in cm and t in seco

patriot [66]

Answer:

Explanation:

y = 16 sinπx/15 cos(96πt)

When t = 0

y = 16 sinπx/15

here πx/15 is phase of the point at x

if x = 13

Phase = 13π/15

if x = 16

Phase = 16π/15

Phase difference

= 16π/15 - 13π/15

= 3π/15

= π/5 radian .

7 0

3 years ago

If you were creating a lamp by hand what type of material would you chose for the wiring and what material would you chose to co

il63 [147K]

A lot of it is all experimental as long as you are taking caution of safety while doing it. I personally would use copper wiring mainly for the fact that it is a nice conductor. For the wrap around the wiring i usually would use black or red electrical tape just because it has very nice insulator properties and is safe to use.

6 0

3 years ago