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Aleksandr-060686 [28]
3 years ago
9

Four students are comparing vectors and scalars. The chart contains each students statements about vectors and scalars

Physics
1 answer:
Paul [167]3 years ago
7 0
Vectors have a magnitude and direction whereas scalars only have a magnitude. The dot product of two vectors is a scalar.
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A long solenoid has a diameter of 11.1 cm. When a current i exists in its windings, a uniform magnetic field of magnitude B = 42
Pepsi [2]

Answer:

E(1) = 1.44\times 10^{-4} v/m

E(2) = 1.34\times 10^{-4} v/m

Explanation:

Given data:

diameter of solenoid is 11.1 cm

B = 42.9 mT

dR = 6.65 mT/s

d(1) = 4.34 cm

d(2) = 7.46 cm

we know that

electric field due to solenoid is given as

E = 1/2 dB/dt (r)

E(1)= \frac{0.0434}{2} \times (6.65\times 10^{-3})

E(1) = 1.44\times 10^{-4} v/m

E = 1/2 dB/dt (R^2)/r

E(2)= \frac{0.055^2}{2\times 0.0746} \times (6.65\times 10^{-3})

E(2) = 1.34\times 10^{-4} v/m

6 0
3 years ago
Fires typically burn in a downward fashion
andriy [413]
Depending on which shape the object is when the fire lights up
8 0
2 years ago
What is the difference between arteries and artiole?
yawa3891 [41]

Answer:

The answer is down below

Explanation:

Las arterias transportan la sangre desde el corazón y se ramifican en vasos más pequeños, formando arteriolas. Las arteriolas distribuyen sangre a los lechos capilares, los lugares de intercambio con los tejidos corporales. Los capilares conducen de regreso a pequeños vasos conocidos como vénulas que fluyen hacia las venas más grandes y finalmente regresan al corazón.

7 0
2 years ago
A rotating wheel requires a time Δt = [01]_____________________ to rotate 37.0 revolutions. Its angular speed at the end of the
Sidana [21]

Answer:

Explanation:

Initial angular velocity ω₁ = 0 , final angular velocity ω₂ = 75.9 rad /s

angle rotated =  θ

= 37 x 2π

= 74 π

The formula for angular velocity

ω₂² =  ω₁² + 2αθ , α is angular acceleration

75.9² = 0 + 2 α x 74 π

α = 75.9² / 2  x 74 π

= 12.396 rad / s²

8 0
3 years ago
Charlotte is driving at 66.5 mi/h and receives a text message. She looks down at her phone and takes her eyes off the road for 3
Alborosie

Answer:

the distance traveled by Charlotte in feet is 338.44 ft

Explanation:

Given;

speed of Charlotte, u = 66.5 mi/h

time of motion, t = 3.47 s

The distance traveled by Charlotte in feet is calculated as;

Distance = Speed \ \times \ time \\\\D = ut\\\\D = (\frac{66.5 \ mi}{h} \times  \frac{5280 \ ft}{1 \ mi} \times \frac{1 \ h}{3600 \ s} )(3.47 \ s)\\\\D = 338.44 \ ft

Therefore, the distance traveled by Charlotte in feet is 338.44 ft

7 0
2 years ago
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