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2 years ago

2) A car travels 5 miles north, and then 10 miles south. What is the person's DISTANCE and

Physics

1 answer:

Liono4ka [1.6K]2 years ago

6 0

Answer:

distance traveled is 15 mi

displacement is 5 mi

Explanation:

Distance takes time into account and adds up all the tiny displacements during the entire period of the trip.

Displacement ignores time and looks only at the change in position from the starting point to the ending point.

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Honey bees can acquire a small net charge on the order of 1 pC as they fly through the air and interact with plants. Estimate th

murzikaleks [220]

Answer:

$3.35\cdot 10^{-16}N$

Explanation:

The force exerted on a charged particle due to a magnetic field is given by:

$F=qvB sin \theta$

where

q is the charge of the particle

v is the velocity of the particle

B is the magnetic field strength

$\theta$ is the angle between the directions of B and v

In this problem we have:

$q=1 pC=1\cdot 10^{-12} C$ is the charge of one honey bee

$v=15 mi/h = 6.7 m/s$ is the velocity of the bee

$B=5.0\cdot 10^{-5} T$ is the average strength of the Earth's magnetic field

$\theta=90^{\circ}$ , because the bee flies east to west while the Earth's magnetic field is south to north

Substituting into the equation, we find:

$F=(1\cdot 10^{-12}C)(6.7 m/s)(5.0\cdot 10^{-5} T)(sin 90^{\circ})=3.35\cdot 10^{-16}N$

7 0

3 years ago

A bus traveled down Interstate 35 at a speed of 75 km/h for 4 hours. How many kilometers was the bus speeding?

vesna_86 [32]

Answer:

300 kilometers

Explanation:

75 km x 4 = 300 km

8 0

2 years ago

What would be the mass of an object that has a force of 88N and an acceleration of 12 m/s2?

MA_775_DIABLO [31]

Answer:

7.33 kg

Explanation:

F = ma

88 N = m(12 m/s^2)

m = 7.33 kg

6 0

2 years ago

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Bingel [31]

C because it has 6 on the outer shell. 6+2=8 8 is a full shell

8 0

2 years ago

If the satellite has a mass of 3900 kg , a radius of 4.3 m , and the rockets each add a mass of 210 kg , what is the required st

ehidna [41]

Answer:

The required steady force of each rocket is 28.79 N

Explanation:

mass of the satellite, M=3900 kg

radius, r=4.3 m

mass of rocket, m=210 kg

time, t=5.4 min

Moment of Inertia:

I = 1/2 (Mr^2) + 4mr^2

I = 1/2 ( 3900* (4.3)^2) + 4 (210)*(4.3)^2

I = 51587.1 kg m^2

the angular acceleration is:

a= w/t

here w= 2*π*30

so,

a= 2*π*30 / 5.4* 3600

a=0.0096 rad/ s^2

the Torque becomes:

T=I*a = 4r*F

( 51587.1 )*(0.0096) = 4*4.3* F

F= 28.79 N

the required steady force of each rocket is 28.79 N

learn more about steady force here:

<u>brainly.com/question/13841147</u>

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#SPJ4

7 0

1 year ago