two truckers are traveling directly away from each other at the same speed. If one trucker sounds her horn at a frequency of 206 Hz, and the other trucker hears a frequency of 189 Hz, determine the speed of the trucks. Use the speed of sound as 343 m/s. m/s
Answers
Answer:
v' = 14.76 m/s
Explanation:
given,
frequency of the one truck = 206 Hz
apparent frequency ,f' = 189 Hz
speed of sound, v = 343 m/s
speed of observer (v_o)and source (v_s) = v'
now, using Doppler's effect
314.69 + 0.9174 v' = 343 - v'
1.9174 v' = 28.30
v' = 14.76 m/s
hence, the speed of the truck is equal to 14.76 m/s
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Answers
The taste of the resulting mixture depends on the constituents of the mixture. The amount of the constituents of the mixture also plays a vital role in determining the taste of the mixture.
Further Explanation:
The mixture is a composition of two or more different types of compounds or entities mixed in a desired ratio in order to obtain a different product as a result of the two quantities. The mixing of two or more entities is called as a mixture only when there is no chemical reaction taking place between the two entities.
The taste of a mixture depends on the quantity of the compounds mixed in the formation of the mixture. If we consider the example of the mixture of glucose and water, the sweetness of the mixture depends on the amount of glucose added to the water. The more the amount of glucose, more will be the sweetness of the solution.
In the same manner, in the solution of salt and water, the taste of the mixture depends on the amount of salt added to the water.
Therefore, it can be stated that the taste of the mixture is dependent on the amount of the compound used in the formation of the mixture.
Learn more:
1. Wind and solar energy are examples of brainly.com/question/1062501
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Answer Details:
Grade: Junior School
Subject: Physics
Chapter: Mixtures
Keywords:
Mixture, entities, compounds, taste, sweet, sugar and water, glucose and water, salt and water, amount, composition, chemical.
The taste of the resulting mixture depends upon the ingredients and constituents.
The particular ingredients being blended will determine the flavor of the finished product. When combined, different components can have contrasting flavors and produce a distinctive flavor profile.
Sweet: A mixture that contains sugar, honey, or other sweet substances is likely to taste sweet.
Salty: Adding salt, soy sauce, or salty seasonings will make a dish taste salty.
Sour: When sour flavors, such as vinegar or lemon juice, are combined with other substances, the result is a sour flavor.
Spicy: When combining hot or spicy ingredients, such as chili peppers or hot sauces, the mixture will taste hot or spicy.
Bitter: When combined with other ingredients, some items, such as bitter melon or greens like kale, can add to the bitterness of the dish.
Hence, the taste of the resulting mixture depends upon the ingredients.
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Answers
Potential energy = (mass) x (gravity) x (height)
1,568 J = (40 kg) x (9.8 m/s²) x (height)
Divide each side
by 392 Newtons: Height = (1,568 N-m) / 392 N
= 4 meters .
Answer:
B) 4.0m
Explanation:
Answers
Answer:
v = 0
Explanation:
Given that,
Total distance is 50 yards
Dugan got an early lead by finishing the first 25.00 yd in 10.01 seconds
Dugan finished the return leg (25.00 yd distance) in 10.22 seconds.
We need to find Dugan's average velocity for the entire race. As he returns at the initial position. As a result, the net displacement is equal to 0. So,
Average velocity = net displacement/time
v = 0
Hence, his average velocity for the entire race is 0.
Final answer:
Dugan's average velocity for the entire 50 yd race is 2.47 yd/sec, calculated by dividing the total distance (50 yd) by the total time (20.23 sec).
Explanation:
The first step involved is to calculate the total distance that Dugan had covered. In this case, he swam 25 yd twice, making the total distance 50 yd.
Next, we need to find the total time it took Dugan to swim the entire distance. We add the time of the first leg, which is 10.01 seconds, to the time of the return leg, which is 10.22 seconds, providing a total time of 20.23 seconds.
The average velocity is defined as the total distance divided by the total time. So, for Dugan, it would be 50 yd divided by 20.23 sec, which equals 2.47 yd/sec (rounding to the nearest hundredth).
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B. mass
C. motion
D. energy
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Answer:
When you apply force to move an object at a distance, you are applying work. And work is energy in transit. The answer is letter D. For example, you see a cart at a distance. You observe that it is not moving. You want to transfer it to your backyard. You apply force to the cart and observed that the cart is not at the same position as it was before. You are applying work to the cart by transferring your energy to it.
Explanation:
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The sentence can be completed as follows:
"Electricity is the movement of charges from one atom to another along a conductor."
The movement of the the charges is due to the presence of a potential difference across the conductor, which pushes the charges. More specifically, in normal conductors, the carriers of electricity are the electrons. Therefore we can rewrite the sentence as
"Electricity is the movement of electrons from one atom to another along a conductor."
Final answer:
Electricity is the flow of electrons from one atom to another along a conductor such as a metal wire. This motion is driven by a potential difference or voltage. While the overall speed of electron movement is slow, the propagation of the electrical effect (current) is near light speed.
Explanation:
Electricity is the movement ofelectrons from one atom to another along a conductor. These carriers of electric charge move due to potential difference, also known as voltage. For example, in a metal wire, free electrons move from the negative (low potential) end towards the positive (high potential) end of the wire, creating a flow of electricity.
An interesting detail is that while the electrons move quite slowly overall, the electric effect they produce, the electric current, propagates almost at the speed of light.
The conductor is a material that allows this movement of electrons to occur efficiently, metals like copper or silver are typical conductors.
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