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UkoKoshka [18]
3 years ago
11

A skydiver is using wind to land on a target that is 50 m away horizontally. The skydiver starts from a height of 70 m and is fa

lling vertically at a constant velocity of 7.0 m/s downward with their parachute open (terminal velocity). A horizontal gust of wind helps push them towards the target. What must be their total speed if they want to just hit their target?
Physics
1 answer:
elena55 [62]3 years ago
6 0

Answer:

Answer:

15.67 seconds

Explanation:

Using first equation of Motion

Final Velocity= Initial Velocity + (Acceleration * Time)  

v= u + at

v=3

u=50

a= - 4 (negative acceleration or deceleration)  

3= 50 +( -4 * t)

-47/-4 = t

Time = 15.67 seconds

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Can God make a rock that He can't carry?
Xelga [282]

Answer:

The answer to the question lies in the character of God. God is either finite or infinite. If God is finite and limited, then God could make a rock He could not lift. If God is unlimited in power, then He could create a rock of any size and weight and still be able to lift it.

Explanation:

8 0
2 years ago
How many 90-W, 120-V light bulbs can be connected to a 20-A, 120-V circuit without tripping the circuit breaker? (Note: This des
spayn [35]

Answer:

26

Explanation:

Total power of the circuit

P = V × I = 120 × 20 = 2400 W

Power of each bulb = 90 W

Number of bulbs which work without tripping

N = power of circuit / power of each bulb

N = 2400 / 90

N = 26.66

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8 0
3 years ago
List several examples that show how electrical energy and light energy are useful to you
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Electrical energy and light energy are useful to us in variety of ways from the machines used to make the food you eat to the energy to purify the water you drink. The clothes you wear are even dyed different colors from the light energy. 
6 0
4 years ago
Buffalo, New York, and Raleigh, NC, lie approximately on the same meridian. Buffalo has a latitude of 42.9° N, and Raleigh has a
yulyashka [42]

Answer:

Distance will be =3960\times 0.12385=490.468miles

Explanation:

We have given that Buffalo has a latitude of 42.9°N

And Raleigh has a latitude of 35.8°N

Radius of the earth = 3960 miles

We have to calculate the distance between given two cities

Difference in their latitudes = 42.9-35.8=7.1^{\circ}

Now changing the angle in radian = 7.1\times\frac{\pi }{180}=0.12385radian

So distance will be =3960\times 0.12385=490.468miles

5 0
3 years ago
A wave has a wavelength of 12 mm and a frequency of 7 hertz. What is its speed?
IRISSAK [1]
V = wavelength * frequency
12 mm = 0.012 m

frequency = 7 Hz

v = 0.012 * 7 = 0.084 m/s

7 0
3 years ago
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