A comet is approaching Earth. Describe Earth’s gravitational pull as the comet gets closer to it.

Answers

Answer 1
Answer: F=(GMm)/r^(2) As the comet come closer, r decrease. Value of F, aka gravitational force, also increase.

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Please need help on this

Two examples of an insulator

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Some examples of insulators are plastic, glass and rubber.

(b) Lorna then built a different circuit as shown below. How could Lorna get both bulbs to light at the same time in this circuit?

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Lorna should close the switches S3 and S4,and leave them closed.
Then, both bulbs are controlled by S5. 
When it's closed, they both light. When it's open, they're both off (dark).

1. Straight-in spaces can leave you a safer out if.
A. you're able to pull through facing out
B. you're able to park farther away from the building
C. you're able to reverse out of the parking spot
D. they are located in a parking garage

Answers

Option (A) is correct

Straight-in spaces can leave you a safer out if you're able to pull through facing out

Straight-in parking:

Straight-in parking is a method to park a vehicle where the vehicle is guided and parked safely in between the guiding lines.

Each car is provided a separate slot for parking. It thus helps to prevent blockage of cars. Each car can move in and out freely without any congestion.

Straight-in parking is the most traditional approach of parking which saves time for drivers, allows for two-way traffic as well.

The driver can line up from multiple angles. But the safest way to leave out the Straight-in parking is to pull through facing out.

So option A is the most suitable option in the provided case.

Learn more about straight-in parking:

brainly.com/question/3903210?referrer=searchResults

Answer: A. You're able to pull through facing out

Explanation: DriversED

Electric resistance ____________ with a(n) ____________in the length of a wire and as a result current flow ___________.A) decreases; decrease; increases
B) decreases; increase; increases
C) increases; decrease; decreases
D) increases; increase; decreases

Answers

The answer is D. Electric resistance increases with an increase in the length of a wire and as a result current flow decreases. There is a direct relationship between the length of the wire and the resistance. The longer the wire, the more resistance there will be. Additionally, from Ohm's Law, current is inversely proportional to resistance. This means as the current increases, resistance decreases or vice versa.

. A projectile is fired with an initial velocity of 113 m słatan angle of 60.0degrees above the horizontal from the top of a cliff 49.0 m high.
Calculate:
(a) the time to reach maximum height
(b) the maximum height above the base of the cliff reached by the
projectile
(c) thetotal time it is in the air
(d) the horizontal range of the projectile.​

Answers

Answer:

a) 9.99 s

b) 538 m

c) 20.5 s

d) 1160 m

Explanation:

Given:

x₀ = 0 m

y₀ = 49.0 m

v₀ = 113 m/s

θ = 60.0°

aₓ = 0 m/s²

aᵧ = -9.8 m/s²

a) At the maximum height, the vertical velocity vᵧ = 0 m/s.  Find t.

vᵧ = aᵧ t + v₀ᵧ

(0 m/s) = (-9.8 m/s²) t + (113 sin 60.0° m/s)

t ≈ 9.99 s

b) At the maximum height, the vertical velocity vᵧ = 0 m/s.  Find y.

vᵧ² = v₀ᵧ² + 2aᵧ (y − y₀)

(0 m/s)² = (113 sin 60° m/s)² + 2 (-9.8 m/s²) (y − 49.0 m)

y ≈ 538 m

c) When the projectile lands, y = 0 m.  Find t.

y = y₀ + v₀ᵧ t + ½ aᵧ t²

(0 m) = (49.0 m) + (113 sin 60° m/s) t + ½ (-9.8 m/s²) t²

You'll need to solve using quadratic formula:

t ≈ -0.489, 20.5

Since negative time doesn't apply here, t ≈ 20.5 s.

d) When the projectile lands, y = 0 m.  Find x. (Use answer from part c).

x = x₀ + v₀ₓ t + ½ aₓ t²

x = (0 m) + (113 cos 60° m/s) (20.5 s) + ½ (0 m/s²) (20.5 s)²

x ≈ 1160 m

Which change is the best example of a physical change?1) a cookie baking
2) paper burning
3) ice cream melting
4) a nail rusting

Answers

The answer would be a nail rusting, but really it could be any of these.

Answer: 3

Explanation: