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Vlad [161]
4 years ago
12

A quarterback throws the football to a stationary receiver who is 16.1 m down the field. the football is thrown at an initial an

gle of 38.1 ◦ to the ground. the acceleration of gravity is 9.81 m/s 2 .
a.at what initial speed must the quarterback throw the ball for it to reach the receiver? answer in units of m/s.
Physics
1 answer:
densk [106]4 years ago
6 0
What Class Is this For?
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There are 30 students in Ms. Andrews’ fourth grade class. There are 6 times as many students in the entire fourth grade as there
KatRina [158]

Answer:

30×6=n

Explanation:

30 students in her class× 6 = number of students in the entire 4th grade.

6 0
3 years ago
Identify the y-intercept.
Dmitry [639]

Answer:

1 is the y intercept

Explanation:

the y intercept is where the line crosses the y axis

5 0
3 years ago
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The moist bread becomes mouldy after a few days when it is left in a container with a cover. Which of the following conditions f
malfutka [58]

Answer: Moisture and food (bread)

Explanation:

Mould grows best in humid, damp air/wet conditions.

Since the bread is moist it will provide humidity for the mould as well as food.

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3 0
3 years ago
You illuminate a slit with a width of 70.3 μm with a light of wavelength 719 nm and observe the resulting diffraction pattern on
Zielflug [23.3K]

Answer:

4.3 cm

Explanation:

We are given that

Width,d=70.3\mu m=70.3\times10^{-6} m

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Wavelength,\lambda=719 nm=719\times 10^{-9} m

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We have to find the width in cm of the pattern.

The angle for the first minimum m=1

sin\theta_{min}\approx \theta=\frac{\lambda}{d}=\frac{719\times 10^{-9}}{70.3\times 10^{-6}}=0.0102 rad

y=r\theta=2.11\times 0.0102=0.0215 m

The width of the pattern=2y=2\times 0.0215=0.043 m=0.043\times 100=4.3 cm

8 0
3 years ago
A spring whose stiffness is 1140 n/m has a relaxed length of 0.51 m. if the length of the spring changes from 0.26 m to 0.79 m,
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A boiling pot of water (the water travels in a current throughout the pot), a hot air balloon (hot air rises, making the balloon rise) , and cup of a steaming, hot liquid (hot air rises, creating steam) are all situations where convection occurs. 
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7 0
4 years ago
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