3 years ago

Alyssa is taking a walk on a nature path near her neighborhood. She

Physics

1 answer:

Montano1993 [528]3 years ago

4 0

Answer:

C. Sources of electrical current!

Hope this helps :)

You might be interested in

Gravity can be defined as a force of attraction between objects. The effects of gravity can be witnessed in many systems. Which

murzikaleks [220]

C, planets orbit around the sun because of gravity

5 0

3 years ago

A copper wire has a length of 1.50 m and a cross sectional area of 0.380 mm2. If the resistivity of copper is 1.70 ✕ 10−8 Ω · m

sweet [91]

Answer: 1.044 E -17 A

Explanation:

L =1.50m

A = 0.380mm = 3.8E- 7

Resistivity p =1.70 E-8

R =pl/A

R = 1.70 E-8 × 1.5/ 3.8 E-7

R = 6.71 E-16 ohms

V = IR

0.700 = I × 6.71 E-16

I =1.044E-17 A

5 0

3 years ago

A bicycle is traveling north at 5.0 m/s. The mass of the wheel, 2.0 kg, is uniformly distributed along the rim, which has a radi

andreev551 [17]

Answer:2

Explanation:

Given

Velocity of bicycle is 5 m/s towards north

radius of rim $r=20 cm$

mass of rim $m=2 kg$

Angular momentum $\vec{L}=I\cdot \vec{\omega }$

$I=mr^2=2\times 0.2^2=0.08 kg-m^2$

$\omega =\frac{v}{r}=\frac{5}{0.2}=25 rad/s$

$L=0.08\times 25=2kg-m^2/s$

direction of Angular momentum will be towards west

7 0

3 years ago

A motor is used to produce

Tpy6a [65]

Your answer would be 4.0 hz.

4 0

3 years ago

A block of mass 2. 0 kg, starting from rest, is pushed with a constant force across a horizontal track. The position of the bloc

yan [13]

The magnitude of the change in momentum of the block between zero and 4. 0 seconds is

dp=1.6m/s

<h3>What is the magnitude of the change in momentum of the block between zero and 4. 0 seconds?</h3>

Generally, the equation for the kinematics equation is mathematically given as

x=x+ut+0.5at^2

Therefore

1.6=0+0+0.5*a*1^2

a=0.2m/s^2

In conclusion, change in momentum

dP=mv-mu

2.0*0.8-0

dp=1.6m/s