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Questions (44)

Using a scale of 1 cm to represent 10 N,find the size and direction of the resultant force for 30 N north and 40 N west .(make
1. 4 answers
2. 1,543 views
Consider a string with a length of 56 cm tied at both end (like on a stringed instrument). If the frequency of the first
1. 1 answer
2. 463 views
A crest on a transverse wave is to a compression in a longitudinal wave as a trough is to:A. a resonance B. a beat C.
1. 2 answers
2. 589 views
When an object is moving in a simple harmonic motion, which of the following is at a minimum when the displacement from
1. 4 answers
2. 1,973 views
A mass on a spring A oscillates at twice the frequency of the same mass on spring B. Which statement is correct?A. The spring
1. 1 answer
2. 747 views
Consider a string with a length of 56.5 cm tied at both end (like on a stringed instrument). If the frequency of the first
1. 1 answer
2. 464 views
Consider a string with a length of 56 cm tied at both end (like on a stringed instrument). If the frequency of the first
1. 1 answer
2. 513 views
Consider a pipe with a length of 57.5 cm. If the temperature of the air is 21.5degrees C and the pipe is closed in one end and
1. 3 answers
2. 622 views
Consider a pipe with a length of 57.5 cm. If the temperature of the air is 21.5+B degrees C and the pipe is closed in one end
1. 1 answer
2. 474 views
The speed of a wave in a string is given by v = sqrt (FT/m), where FT is the tension in the string and m = mass / length of the
1. 1 answer
2. 614 views
A 1024 g mass is hung on a spring. As a result the spring stretches 35 cm. If the object is then pulled an additional 3.0 cm
1. 1 answer
2. 542 views
When an object is moving in a simple harmonic motion, which of the following is at a minimum when the displacement from
1. 2 answers
2. 1,089 views
The speed of a wave in a string is given by v = sqrt (FT/m), where FT is the tension in the string and m = mass / length of the
1. 1 answer
2. 670 views
A 1024 g mass is hung on a spring. As a result the spring stretches 35 cm. If the object is then pulled an additional 3.0 cm
1. 1 answer
2. 388 views
The speed of a wave in a string is given by v = sqrt (FT/m), where FT is the tension in the string and m = mass / length of the
1. 1 answer
2. 704 views
Where F is the tension in the string and µ is the linear density (mass per length) of the string.A violin string vibrates at
1. 4 answers
2. 1,169 views
The number of times a wave vibrates per second is called:A. frequency B. period C. wavelength D. amplitude E. rarefaction This
1. 4 answers
2. 1,981 views
Pendulum A with mass m and length l has a period of T. If pendulum B has a mass of 2m and a length of 2l, how does the period of
1. 4 answers
2. 1,166 views
A 2.0 kg mass is attached to the end of horizontal spring (k = 50 N/m) and set into simple harmonic motion with an amplitude of
1. 3 answers
2. 1,753 views
A mass on a spring A oscillates at twice the frequency of the same mass on spring B. Whichstatement is correct? A. The spring
1. 4 answers
2. 1,034 views
A 1024 g mass is hung on a spring. As a result the spring stretches 35 cm. If the object is then pulled an additional 3.0 cm
1. 1 answer
2. 444 views
A <10.0+A> g ice cube at -15.0oC is placed in <125+B> g of water at 48.0oC. Find the final temperature of the system when
1. 1 answer
2. 807 views
A 37.0 g ice cube at -15.0 degreesC is placed in 224 g of water at 48.0 degreesC. Find the final temperature of the system when
1. 1 answer
2. 765 views
If an ideal gas does positive work on its surroundings, we may assume, with regard to the gas:A. Volume increases B. Internal
1. 3 answers
2. 2,117 views
Two moles of neon gas at 25oC and 2.0 atm is expanded to 3 times the original volume while the pressure is reduced to 1.0 atm.
1. 1 answer
2. 818 views
Consider a 10 gram sample of a liquid with specific heat 2 J/g*K. By the addition of 400 J, the liquid increases its temperature
1. 2 answers
2. 1,006 views
A 48-N object floats in a pool. If 75% of the volume of the object is immersed in the water, which statement is true about the
1. 4 answers
2. 2,114 views
A cable is 100 m long and has a cross-section area of 1 mm2. A 1000-N force is applied to stretch the cable. If Young’s
1. 1 answer
2. 946 views
A cable is 100 m long and has a cross-section area of 1 mm2. A 1000-N force is applied to stretch the cable. If Young’s
1. 3 answers
2. 1,388 views
A heat engine performs 272 J of work in each cycle while also delivering 241 J of heat to the cold reservoir. Find the
1. 2 answers
2. 558 views
A closed 2.0-L container holds 3.0 mol of an ideal gas. If 200 J of heat is added, what is the change in internal energy of the
1. 3 answers
2. 2,931 views
An ideal fluid flows through a pipe made of two sections with diameters of 1.0 and 3.0 inches, respectively. What is the ratio
1. 4 answers
2. 3,260 views
Consider a 10 gram sample of a liquid with specific heat 2 J/g*K. By the addition of 400 J, the liquid increases its temperature
1. 1 answer
2. 769 views
A 37.0 g ice cube at -15.0 degreesC is placed in 224 g of water at 48.0 degreesC. Find the final temperature of the system when
1. 2 answers
2. 559 views
An object with a mass of 34.0 g and a volume of 41.0 + B cm3 is placed in a liquid with a density of 1.25 g/cm3. Find the volume
1. 4 answers
2. 1,289 views
A steel wire is used to lift heavy object. The cable has a diameter of 14.25 mm and an initial length of 33.5 m. If the cable
1. 2 answers
2. 636 views
A steel wire is used to lift heavy object. The cable has a diameter of 14.25 mm and an initial length of 33.5 m. If the cable
1. 2 answers
2. 587 views
A steel wire is used to lift heavy object. The cable has a diameter of 14.25 mm and an initial length of 33.5 m. If the cable
1. 1 answer
2. 525 views
Consider a ladder placed against a frictionless wall. What happens to the friction force between the ladder and the floor as you
1. 3 answers
2. 1,670 views
Which force(s) provide(s) the centripetal force needed for a car to make a turn on a bankedcurve? A. Weight, only B. Tension,
1. 2 answers
2. 667 views
Consider a plane pulling up from a downward dive. If the plane has a speed of 85 m/s at the bottom of the dive and the radius of
1. 2 answers
2. 1,070 views
Consider the directions of the velocity and the acceleration vectors of an object in uniformcircular motion. A. Both vectors
1. 3 answers
2. 825 views
A <69.0> kg construction worker is standing on an 18.0 kg plank. The plank is <12.50> m long and it is suspended by vertical
1. 2 answers
2. 676 views
A (10.25) kg bowling ball is hung on a (11.50) m long rope. It is then pulled back until the rope makes an angle of (39.0)o with
1. 2 answers
2. 850 views

Answers (2)

is it 1.19 Seconds? K=28701.257 2pi( Sqrt(1024/k)
An object with a mass of 34.0 g and a volume of 41.0 cm3 is placed in a liquid with a density of 1.25 g/cm3. Find the volume of the part of the object that is NOT submerged in the liquid. Give your answer in cm3 and with 3 significant figures. - theres no

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