A two-slit pattern is viewed on a screen 1.26 m from the slits. If the two fourth-order maxima are 53.6 cm apart, what is the to
1 answer:
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It took the ball 6.94 seconds to make the trip
Explanation:
A bouncy ball is being thrown upwards with a velocity of 34 meters per
second and you caught the ball at the same height you released it
1. The initial velocity of the ball is 34 m/s upward
2. The acceleration of gravity is -9.8 m/s²
3. You caught the ball at the same height you released it
We need to find how long it takes the ball to make the trip
You caught the ball at the same height you released it, then
→ The displacement of the trip s = zero meter
→ The ball thrown upward with initial velocity u = 34 m/s
→ The acceleration of gravity g = -9.8 m/s²
→ s = u t + g t²
Substitute the values of u , g , s in the rules
→ 0 = 34 t + (-9.8) t²
→ 0 = 34 t - 4.9 t²
Multiply both sides by -1
→ 4.9 t² - 34 t = 0
Take t as common factor
→ t(4.9 t - 34) = 0
Equate each factor by 0
→ t = 0 ⇒ initial position
→ 4.9 t - 34 = 0
Add 34 to both sides
→ 4.9 t = 34
Divide both sides by 4.9
→ t = 6.94 seconds ⇒ final position
It took the ball 6.94 seconds to make the trip
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Answer:
f' = 3665.51 Hz
Explanation:
given,
speed of the hawk = 24.7 m/s
frequency of screech emitted by the hawk = 3400 Hz
speed of sound = 331 m/s
By Doppler's effect
f' is the frequency received by the mouse
v is the speed of the sound
v_s is the speed of the hawk
now,
f' = 1.078 x 3400
f' = 3665.51 Hz
The frequency received by the stationary mouse is equal to 3665.51 Hz
Answer:
The final velocity of the cars is 8.38 m/s at an angle 39.1° south of west.
Explanation:
Given that,
Mass of first car = 1100 kg
Velocity of first car = 8.5 m/s
Mass of second car = 650 kg
Velocity of second car = 17.5 m/s
Suppose we need to find the final velocity of the cars and direction of the cars.
We need to calculate the velocity of the car in west direction
Using conservation of momentum in west direction
Put the value into the formula
We need to calculate the velocity of the car in south direction
Using conservation of momentum in south direction
Put the value into the formula
We need to calculate the final velocity of the cars
Using formula of velocity
We need to calculate the direction
Using formula of direction
Put the value into the formula
Hence, The final velocity of the cars is 8.38 m/s at an angle 39.1° south of west.