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musickatia [10]
3 years ago
12

In Parts A, B, C consider the following situation. In a baseball game the batter swings and gets a good solid hit. His swing app

lies a force of 12,000 N to the ball for a time of 0.70×10−3s. Part A Assuming that this force is constant, what is the magnitude J of the impulse on the ball?
Physics
1 answer:
Anarel [89]3 years ago
3 0

Answer:

J = 8.4 kg*m/s

Explanation:

The magnitude of the impulse, J, on the ball can be calculated using the following equation:

J = F*t   (1)

<u>Where:</u>

F: is the force = 12000 N

t: is the time = 0.70x10⁻³ s

So, by entering the values above into equation (1) we can find the impulse on the ball:

J = F*t = 12000 N*0.70 \cdot 10^{-3} s = 8.4 kg*m/s

Therefore, the impulse on the ball is 8.4 kg*m/s.

I hope it helps you!

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mestny [16]

Answer:

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A hypothesis states a presumed relationship between two variables in a way that can be tested with empirical data. ... The cause is called the independent variable; and the effect is called the dependent variable.

6 0
3 years ago
An Alaskan rescue plane traveling 39 m/s drops a package of emergency rations from a height of 198 m to a stranded party of expl
Elden [556K]

y = 0m

y0 = 166m

v0y = 0 m/s

g = 9.8 m/s^2

t = ?


Solve for t:

y = y0 + v0y*t - (0.5)gt^2

0 = 166 - (0.5)(9.8)t^2

t = 5.82 s


Now, using time, we can solve for the range using the equation:


x = vx(t)

x = (40)(5.82)

x = 232.8 m


The impact horizontal component of velocity will be 40 m/s as velocity in terms of x is always constant. To find the impact vertical component of velocity, we use the equation:


v = v0y - gt

v = 0 - (9.8)(5.82)

v = -57.04 m/s


3 0
3 years ago
Read 2 more answers
A 50 mL graduated cylinder contains 25.0 mL of water. A 42.5040 g piece of gold is placed in the graduated cylinder and the wate
Elenna [48]

Answer:

19320 kg/m³

Explanation:

density: This can be defined as the ratio of the mass of a body to its volume. The S.I unit of Density is kg/m³.

The formula of density is given as,

D = m/v ......................... Equation 1.

Where D = Density of the gold, m = mass of the gold, v = volume of the gold.

Note: From Archimedes's Principle, the piece of gold displace an amount of water that is equal to it's volume.

Amount of water displace = 27.2 - 25 = 2.2 mL.

Given: m = 42.504 g = 0.042504 kg, v = 2.2 mL = (2.2/10⁶) m³ = 0.0000022 m³

Substitute into equation 1

D = 0.042504/0.0000022

D = 19320 kg/m³

Hence the density of the piece of gold = 19320 kg/m³

5 0
3 years ago
A fisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surfac
Sedbober [7]

Answer:

v = 1.2 m/s

Explanation:

The wavelength of the waves is given as the horizontal distance between the crests:

λ = wavelength = 5.5 m

Now, the time period is given as the time taken by boat to move from the highest point again to the highest point. So it will be equal to twice the time taken by the boat to travel from highest to the lowest point:

T = Time Period = 2(2.3 s) = 4.6 s

Now, the speed of the wave is given as:

v = f\lambda

where,

v= speed of wave = ?

f = frequency of wave = \frac{1}{T} = \frac{1}{4.6\ s} = 0.217\ Hz

Therefore,

v = (0.217\ Hz)(5.5\ m)\\

<u>v = 1.2 m/s</u>

5 0
3 years ago
About how long does it take for the moon to go from new moon to full moon?
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A month
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