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You adjust the temperature so that a sound wave travels more quickly through the air. You increase the temperature from 30°C to 36°C. What's the velocity of the sound wave at this new temperature? A. 350.0 m/s B. 344.0 m/s C. 352.6 m/s D. 335.6 m/s
s
Question|Asked by dmlharris
Asked 4/1/2019 9:30:47 AM
Updated 7/8/2019 7:29:20 AM
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User: You adjust the temperature so that a sound wave travels more quickly through the air. You increase the temperature from 30°C to 36°C. What's the velocity of the sound wave at this new temperature? A. 350.0 m/s B. 344.0 m/s C. 352.6 m/s D. 335.6 m/s

Weegy: V = 331  + 0.6T m/s                                = 331 + 0.6 × 36 m/s                                = 331 + 21.6 m/s                                = 352.6 m/s. Here, T denotes the temperature of the surrounding. Hence, [ velocity of the sound will be 352.6 m/s. ]
Expert answered|venne1890|Points 657|

User: Sound waves can't travel through A. a vacuum. B. a solid. C. an elastic material. D. a liquid.



Question|Asked by dmlharris
Asked 4/1/2019 9:30:47 AM
Updated 7/8/2019 7:29:20 AM
1 Answer/Comment
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Sound waves can't travel through a vacuum.
Added 7/8/2019 7:29:20 AM
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Questions asked by dmlharris
The distance from the center of a round table top to the edge of the table top is 4 ft. What's the area of the table top? A. 25.14 sq. ft. B. 50.24 sq. ft. C. 38 sq. ft. D. 16 sq. ft.
Weegy: The distance from the center of a round table top to the edge of the table top is 4 ft. Area of the table top = pi x (r squared) = 3.14 x (4 x 4) = 3.14 x 16 = 50.24 sq ft. User: Store space in a shopping mall is often rented by the square foot. What's the area of a rectangular jewelry store that is 12 feet wide and 18 feet long? A. 576 square feet B. 288 square feet C. 68 square feet D. 216 square feet (More)
Question|Asked by dmlharris
Not Answered
Updated 7/8/2019 7:40:35 AM
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Store space in a shopping mall is often rented by the square foot. The area of a rectangular jewelry store that is 12 feet wide and 18 feet long is 216 sq.ft.
Area = l*w =18*12 =216
Added 7/8/2019 7:40:35 AM
This answer has been confirmed as correct and helpful.
If a triangle has a height of 14 inches and a base of 9 inches, what's its area? A. 63 square inches B. 46 square inches C. 135 square inches D. 126 square inches
Question|Asked by dmlharris
Not Answered
Updated 7/8/2019 7:40:15 AM
1 Answer/Comment
A triangle has a height of 14 inches and a base of 9 inches, the area is 63 square inches.
Area = (14*9)/2 = 126/2 = 63 square inches
Added 7/8/2019 7:40:15 AM
This answer has been confirmed as correct and helpful.
What is the radius of a circle with an area of 32.1 square feet? A. 3.20 ft. B. 5.23 ft. C. 10.22 ft. D. 4.75 ft.
Question|Asked by dmlharris
Not Answered
Updated 3/25/2019 11:15:47 AM
1 Answer/Comment
The radius of a circle with an area of 32.1 square feet is 3.20 ft.
A = pi * r^2
r = sqr(A/pi)
r = sqr(32.1/3.14)
r = 3.20 (rounded)
Added 3/25/2019 11:15:47 AM
This answer has been confirmed as correct and helpful.
Find the circumference of a circle that has an area of 452.16 square meters. (Use 3.1416 as the value of .) A. 37.6992 meters B. 12 meters C. 75.3984 meters D. 24 meters
Question|Asked by dmlharris
Not Answered
Updated 7/8/2019 7:41:24 AM
1 Answer/Comment
The circumference of a circle that has an area of 452.16 square meters is 75.3984 meter.
Area = pie *r^2 = 452.16
r^2 = 452.16 /3.14
r = 12
circumference = 2*pi*r
C = 2 * 3.1416 * 12 = 75.3984
Added 7/8/2019 7:41:24 AM
This answer has been confirmed as correct and helpful.
What's the area of a square computer screen with 21-inch sides? A. 42 sq. in. B. 220 sq. in. C. 441 sq. in. D. 84 sq. in.
Weegy: The area of a square computer screen with 21-inch sides is 441 sq.inches . Area = a^2 = 21^2 = 21*21 = 441 User: If the area of a circle is 58 square feet, find the circumference. A. 42.5 ft. B. 22.35 ft. C. 4.25 ft. D. 26.99 ft. Weegy: if the area of a circle is 58 square feet, the circumference is 26.99 ft. A = pi * r^2 r = sqr(A/pi) r = sqr(58/3.1416) r = sqr(18.46) r = 4.2967 d = 4.2967 * 2 d = 8.5934 c = d * pi c = 8.5934 * 3.1416 c = 26.99 (rounded) User: Sheri's freezer is 2 feet wide, 6 feet long, and 2 feet deep. What's the volume of her freezer? A. 10 cubic feet B. 4 cubic feet C. 24 cubic feet D. 12 cubic feet (More)
Question|Asked by dmlharris
Expert Answered
Asked 3/25/2019 11:00:35 AM
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