3 years ago

A theory is a way of explaining observations. true or false.

Physics

2 answers:

Natasha_Volkova [10]3 years ago

5 0

I think its true. hope this helps.

julsineya [31]3 years ago

3 0

Answer:

true

Explanation:

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Gravitational potential energy is due to....

mote1985 [20]

Answer:

Explanation:

I only think its A because of the gravity part...sorry im not good at explaining

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2 years ago

If you have two objects on the edge of a cliff, how can you determine which one has the most potential energy?

True [87]

Answer: now take this with a grain of salt because I'm in middle school but I think that the more massive object has more potential energy.

Explanation:

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2 years ago

The driver of a 1000 kg car traveling at a speed of 16.7 m/s applies the brakes. If the brakes provide a force of - 8000 N to st

RSB [31]

Answer:

Given:

m=1000kg

u= 16.7m/s

v=0m/s

F=8000N

Required:

s=?

Solution:

F=m × a

8000N=1000kg × a

a=8m/s^2

Since it decelerate a= -8m/s^2

v^2 = u^2 + 2as

s=v^2 - u^2 / 2a

s= 0 - (16.7m/s)^2 / 2 × -8m/s^2

s= -278.89/-16

s= 17.43m

The car travels approximately 17.43m before it stops

Please like and follow me

6 0

1 year ago

An airplane is flying at a constant speed in a positive direction. It slows down when it approaches the airport where it's going

guapka [62]

Negative acceleration d. I think

6 0

2 years ago

A 594 Ω resistor, an uncharged 1.3 μF capacitor, and a 6.53 V emf are connected in series. What is the current in milliamps afte

ivanzaharov [21]

Answer:

6.88 mA

Explanation:

Given:

Resistance, R = 594 Ω

Capacitance = 1.3 μF

emf, V = 6.53 V

Time, t = 1 time constant

Now,

The initial current, I₀ = $\frac{\textup{V}}{\textup{R}}$

I₀ = $\frac{\textup{6.53}}{\textup{594}}$

I₀ = 0.0109 A

also,

I = $I_0[1-e^{-\frac{t}{\tau}}]$

here,

τ = time constant

e = 2.717

on substituting the respective values, we get

I = $0.0109[1-e^{-\frac{\tau}{\tau}}]$

I = $0.0109[1-2.717^{-1}]$

I = 0.00688 A

I = 6.88 mA

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2 years ago