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Aleksandr [31]
3 years ago
12

18. Which would be the most reliable source of information to use for a history report? (2 points)

Physics
2 answers:
miv72 [106K]3 years ago
5 0
An encyclopedia because it isn’t biased
Paladinen [302]3 years ago
3 0

Answer:

encyclopedia most reliable I think

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Frank is leaving Gainesville at 7:30 am and needs to be in Tampa by noon. He is cycling at an average speed of 18.3 mph. At what
garri49 [273]

If Frank leaves Gainesville at 7:30 am, the time he should arrive in Tampa is 12.00 pm after spending 4 hours 30 minutes on the road.

<h3>What is average speed? </h3>

The average speed of an object is the ratio of total distance to total time of motion.

V = total distance/total time

For Frank to be in Tampa by noon, he must spend atleast 4 hours 30 minutes on the road.

18.3 mph = d/4.5 h

d = 82.35 miles

The distance between Gainesville  and Tampa is 82.35 miles.

Thus, we can conclude that, if Frank leaves Gainesville at 7:30 am, the time he should arrive in Tampa is 12.00 pm after spending 4 hours 30 minutes on the road.

Learn more about average speed here: brainly.com/question/6504879

#SPJ1

4 0
2 years ago
A blue car with mass mc = 427 kg is moving east with a speed of vc = 20 m/s and collides with a purple truck with mass mt = 1282
polet [3.4K]

Answer:8540 kg-g/s

Explanation:

Given

mass of blue car m_c=427 kg

velocity of blue car v_c=20 m/s

mass of the truck m_t=1282 kg

speed of truck v_t=13 m/s

After collision they stick and lock together

Let v be the velocity of combined system at angle \theta from vertical

Conserving momentum in east direction

m_c\times v_c=(m_c+m_t)v\cos \theta

427\times 20 =1709\times v\cos \theta------1

Conserving Momentum in Y direction

m_t\times v_t=(m_c+m_t)v\sin \theta

1282\times 13 =1709\times v\sin \theta-------2

squaring and then adding 1 & 2 we get

(8540)^2+(16666)^2=(1709)^2\cdot v^2

v=10.95 m/s

initial momentum of car=427\times 20=8540 kg-m/s

6 0
4 years ago
Fossils are generally found inside of what type of rocks?
dusya [7]

Answer:

C sedimentary rocks is the answer.

Explanation:

8 0
4 years ago
Read 2 more answers
A 30 resistor is connected in series with another resistor and a 6. 0V battery. The current in th
Setler79 [48]

Hi there!

We can begin by calculating the voltage drop across the 30 Ω resistor using the equation:

V = IR
V = Potential Difference (V)

I = Current (A)

R = Resistance (Ω)

Calculate the voltage. Recall that the current is CONSTANT across a series circuit.


V = 0.12 × 30 = 3.6 V

Voltage ADDS UP in a series, so:

Total V = V1 + V2

6 = 3.6 + V2

<u>V2 = 2.4V. The correct answer is A.</u>

6 0
2 years ago
Water flows into a swimming pool at the rate of 5.85 gal/min. If the pool dimensions are 21.2 ft wide, 46.1 ft long and 19.4 ft
Lana71 [14]

First, calculate volume:

volume = 21.2 ft * 46.1 ft * 19.4 ft

volume = 18,960 ft^3

 

Convert to gallon:

volume = 18,960 ft^3 * (12 in / 1 ft)^3 * (1 gallon / 231 in^3)

volume = 141,830.71 gallon

 

Therefore the time is:

time = 141,830.71 gallon / (5.85 gal/min)

time = 24,244.57 min

6 0
3 years ago
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