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Nady [450]
2 years ago
7

A golfer hits a ball and gives it an initial velocity of 40 m/s , at an angle of 30 degrees above the horizontal.

Physics
1 answer:
ohaa [14]2 years ago
8 0

Answer:

a: 4.08 sec

b: 141 m

Explanation:

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6 0
3 years ago
Look at paths of the projectiles. What effect does air resistance have on the projectile?
inna [77]

Answer:

Therefore the resistance of the air makes the movement not parabolic but shorter in each direction

Explanation:

The projectile motion is described by the kinematics equations giving a parabolic trajectory, where on the x axis there is no acceleration and on the y axis the acceleration is the acceleration of gravity.

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3 years ago
Oscilloscopes have parallel metal plates inside them to deflect the electron beam. These plates are called the deflecting plates
alexdok [17]

Answer:

1.6 pF

Explanation:

The capacitance of a parallel-plate capacitor in air is given by:

C=\frac{\epsilon_0 A}{d}

where

\epsilon_0 is the vacuum permittivity

A is the area of each plate

d is the separation between the plates

In this problem we have:

- Separation between the plates: d = 5.00 mm = 0.005 m

- Area of the plates: A = 3.00 cm \cdot 3.00 cm = 9.00 cm^2 = 9\cdot 10^{-4}m^2

Therefore, the capacitance is

C=\frac{(8.85\cdot 10^{-12}F/m)(9\cdot 10^{-4} m^2)}{0.005 m}=1.6\cdot 10^{-12} F=1.6 pF

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3 years ago
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Answer:

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7 0
3 years ago
Forces that are equal in size but opposite in direction are called what ?
enot [183]

Answer:

I think they are called balanced forces

Explanation:

3 0
2 years ago
Read 2 more answers
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