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3 years ago

Q1:The distance to the water fountain is 6 meters. Is

Physics

1 answer:

mezya [45]3 years ago

5 0

Answer:

Scalar Quantity

Explanation:

A scalar has only magnitude, while a vector quantity has magnitude and direction.

An example of a vector would be 5m/s West.

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Uranium-235 has 92 protons. How many neutrons does it have?

Mrrafil [7]

Answer:

146 neutrons.

Explanation:

plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz mark me brainliest

3 0

4 years ago

Read 2 more answers

When the starter motor on a car is engaged, there is a 300 A cunent in the wires between the bauery and the motor. Suppose the w

docker41 [41]

Answer:

diameter of transmission is 3.473 mm

Explanation:

given data

current = 300 A

total wire length = 1.0 m

voltage drop = 0.55 V

solution

as here Resistivity of copper is = 1.68 × $10^{-8}$ ohm- m

so we get here resistance of wire that is

resistance = $\frac{V}{I}$ ..............1

R = $\frac{0.55}{310}$

R = 1.774 × $10^{-3}$ ohm

and now we get diameter of wire that is

R = $\frac{\rho l}{A}$ .............2

$\pi \frac{d^2}{4} = \frac{\rho l}{R}$

d² = $\frac{4\rho l}{\pi R}$ ...............3

put here value

d² = $\frac{4\times 1.68\times 10^{-8} \times 1}{\pi \times 1.774\times 10^{-3}}$

d = $\sqrt{12.064\times 10^{-6}}$

d = 3.473 × $10^{-3}$ m

d = 3.473 mm

so diameter of transmission is 3.473 mm

4 0

4 years ago

Increasing the mass attached to a spring will increase its vibrational period.

iren2701 [21]

Increasing the mass attached to a spring will increase it's vibrational period - this is true. Imagine placing an elephant at the end of a bungee cord vs an apple, the apple will recoil faster than the elephant.

8 0

3 years ago

Determine the magnitude of the minimum acceleration at which the thief can descend using the rope. Express your answer to two si

iVinArrow [24]

Answer: hello your question is incomplete below is the missing part

A 69-kg petty thief wants to escape from a third-story jail window. Unfortunately, a makeshift rope made of sheets tied together can support a mass of only 58 kg.

answer:

To 2 significant Figures = 1.6 m/s^2

Explanation:

<u>Calculate the magnitude of minimum acceleration at which the thief can descend </u>

we apply the relation below

Mg - T = Ma --- ( 1 )

M = 69kg

g = 9.81

T = 58 * 9.81

a = ? ( magnitude of minimum acceleration)

From equation 1

a = [ ( 69 * 9.81 ) - ( 58 * 9.81 ) ] / 69