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Bad White [126]
3 years ago
10

Initilal velocity of projectile at an angle of 22.5° is 10m/s. Then what is the magnitude of range of projectile?

Physics
1 answer:
crimeas [40]3 years ago
3 0

Answer:

0.707m

Explanation:

from formula of range i.e R=Usin2Q/g

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If the diameter of each of a car's wheels is 0.4 meters, approximately, what was the average speed of the car for its three-hour
Reptile [31]

Answer:

42 km/h was the average speed of the car for its three-hour trip.

Explanation:

Diameter of the car wheel = d = 0.4 m

Radius of the car wheel = r = 0.5 d = 0.5 × 0.4 m =0.2 m

Distance covered in 1 complete revolution = 2\pi r

Distance covered in 100,000 complete revolution,D = 2\pi r\times 100,000

D=2\times 3.14\times 0.2 m\times 100,000=125,663.71 m

1 m = 0.001 km

125,663.71 m = 125,663.71 × 0.001 km = 125.66371 km

Time taken to complete 100,000 revolution by a wheel = t = 3 hours

Speed of car : S

S=\frac{125.66371 km}{3hours}=41.89 km/h\approx 42 km/h

42 km/h was the average speed of the car for its three-hour trip.

8 0
3 years ago
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Which mass is undergoing to the greatest amount of acceleration ??
lina2011 [118]

Answer:

Option (3)

Explanation:

Formula used to calculate acceleration is,

F = ma

Where F = force exerted on a mass

m = mass

a = acceleration due to force exerted on the mass

Option (1),

When F = 100 N and m = 100 kg

100 = 100a

a = 1 m per sec²

Option (2)

For F = 1 N and m = 100 kg

1 = 100a

a = \frac{1}{100}

a = 0.01 m per sec²

Option (3)

For F = 100 N and m = 1 kg

100 = 1(a)

a = 100 m per sec²

Option (4)

For F = 1 N and m = 1 kg

1 = 1(a)

a = 1 m per sec²

Therefore. acceleration in Option (3) is the maximum.

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Factors that affect the amount of friction against an object moving throughout the air include the objects what
Burka [1]

Answer:

mass and gravitational push ,

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3 years ago
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1) What do (x) and (y) symbolize?
MArishka [77]

Answer:

x is vertical and y is horizontal

Explanation:

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