What is the mass of a bullet (in kg) that is moving with a velocity of 900 m/s and has a momentum of 4.5 kg-m/s?

Q: The dimensions of aluminum foil in a box for sale in supermarkets are 66 2/3 yards by 12 inches. The…

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Q: An object travels 5 miles in a time of 1 hr. What is the speed of the object?

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Q: The frequency of a wave is 50 Hertz and its wavelength is 25 meters. What is the velocity of this…

A: Introduction- Velocity of a wave is defined as the product of its frequency and Wavelength given-…

Q: What is the wavelength of a wave that has a frequency of 15 Hz and a speed of 2 m/s?

A: Given data:                  Frequency = 15 Hz                  Speed = 2 m/s Formula :…

Q: A wave traveling 83 m/s has a wavelength of 5.4 m. What is the frequency of the wave (in Hz)?

A: Given: Speed of the wave =83m/s Wave length =5.4m  To find: Frequency of the wave, Solution: The…

Q: what is the speed does a meter stick move if its length is observed to shrink to 0.5 m?

A: Given data:  Original Length (L0) = 1 m Contracted length (L) = 0.5 m Required: The speed (v) of the…

Q: What is the wavelength of a sound wave traveling through the air at sea level that has a frequency…

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Q: A square cube with a side measuring 0.25m has a mass of 5kg.  What is the density of the cube?

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Q: What is the speed of a wave that has a wavelength of 2 m and a frequency of 6 Hz?

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Q: A clown in a circus swings back and forth on a long rope. If the clown makes 35 complete swings in…

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Q: An empty railroad car with a mass of 10,510 kg collides and couples to a full railroad car with a…

A: Given that, mass of the railroad car, M1 =10510 kg mass of the two car, M2 =19352 kg velocity of the…

Q: You have a raft made out of 8 logs, each with a diameter of 30 centimeters, length of 2 meters, and…

A: The mass per unit volume of an object is defined as the density of the object, to solve the given…

Q: A block of wood measuring 5cm x 3 cm x 10 cm has a mass of 90 grams. What is the density of the…

A: Given that,                    volume of block of mass(V)=5×3×10×10-6 m3…

Q: A metal block has a density of 5000 kg per cubic meter and a mass of 15,000 kg. What is its volume?

A: Answer: Given: density of the block ρ=5000Kgm3 Mass of block m= 15,000 Kg Find the volume of the…

Q: A 2 kg ball thrown with a velocity of 2 m/s carries a momentum of  ?

A: Momentum is,

Q: How much energy is used to light a 45 Watt light bulb for 10 hours?

A: Given, P=45 Watt t = 10 Hours We know that, E = P*t   = (45 Watt) *(10 h)    = 45 Watt ((10 h) (60…

Q: If a rock had a mass of 53kg and its total energy is 10,440 J, what amount of potential energy would…

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Q: What is the wavelength, in m, of a 20,000 Hz wave that travels at 6 km/s?

A: λ=vf

Q: what was the average speed in km/h of a car that travels 772km in 5.8h?

A: Given:Total displacement = 772kmtotal Time=5.8hr…

Q: If a floating iceberg has a surface area of 100 square meters and is 10 meters high, what is the…

A: Surface area, A = 100 m2 height, h = 10 m

Q: A helium balloon is at 105 kPa. As the balloon rises the pressure drops to 95 kPa and its new volume…

A: Given values:- Initial pressure,(P1)=105 KPa ----(1) Final pressure,(P2)=95 KPa -----(2) Final…

Q: What velocity would a 5 kg ball need to have a KE=210?

A: Given: mass of the block, m = 5 kg Kinetic energy of the block, K.E = 210 J

Q: A tortoise moves a distance of 92 m in 2.4 seconds what is the average speed of tortoise in km/h?

A: Introduction :  In this question we are provided with value of  total time taken and total…

Q: What is the speed of a wave with frequency 100 hz and wavelength of 2 m?

A: GivenFrequency f = 100HzWavelength λ = 2m

Q: How long will it take an object to move 100 meters if the object is traveling with an average speed…

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Q: How many electrons will weigh 1 mg if the mass of an electron is 9x10-28 g?

A: mass of an electron e=9.1×10-28g let number of electrons be n

Q: An object has a density of 5.6 x 10⁵ kg/m³. What is the mass of the object if its volume is 4.5 x…

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Q: What is the frequency of a 3 meter wave that is moving at 1200 m/s?

A: Given data: Wavelength, λ=3 m Velocity, V=1200 m/s Our question is to find the frequency (f) of…

Q: An object has kinetic energy of 324 J. If it's speed is 9 m/s, what is its mass in kilogram?

A: Given information: Here, KE is the object’s kinetic energy and v is the object’s speed.

Q: How many liters of wine can be held in a wine barrel whose capacity is 31 gallons?

A: The capacity of wine barrel in gallons, Capacity=31 gal   The unit conversion, 1 gal=3.785 L

Q: A boy uses a string to swing a 2 kg stone around his head. If the string is 1.5 m, and can bear a…

A: Given data:  Mass of stone (m) = 2 kg Length of string (L) = 1.5 m Maximum tension (T) = 2224 N…

Q: A train moves at a constant speed and travels 6 miles in 4 minutes. What is the speed in miles per…

A: Given, train moves at a constant speed Distance travelled = 6 miles Time taken to travel 6 miles = 4…

Q: What is the frequency of a wave with a speed of 10 m/s and wavelength of 20 m?

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Q: The driver of a car steps on the brakes, and the velocity drops from 35 m/s to 5 m/s in 4 seconds.…

A: Given:  initial velocity, u = 35 m/s  final velocity,v = 5 m/s  time, t = 4 s

Q: What is the period of a wave that has a frequency of 23 Hz?

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Q: What Is The Mass Of Any Kind Of Object That Travels At The Speed Of Light?

A: Large velocities cause changes in the size and mass of moving objects as well as in the apparent…

Q: A wave traveling 85 m/s has a wavelength of 2.6 m. What is the frequency of the wave (in Hz)?

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Q: What is the average power consumption in watts of an appliance that uses 0.75 kWh of energy in one…

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Q: What is the frequency of a wave that has a speed of 10 m/s and a wavelength of 21 m?

A: The relation between speed of a wave , frequency and wavelength is given by v=fλ; where f is…

Q: If a student found the density of 10 glass beads to be 2.50 g/ml, what would be the density of 1…

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Q: What is the mass, in kg, of a 10 cm x 10 cm x 10 cm cube of pure iron?

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Q: As part of an exercise program, a woman walks south at a speed of 2.5 m/s for 59 minutes. She then…

A: first part of the exercise program : Speed = 2.5 m/s time = 59 minutes = 59×60 seconds= 3540 seconds…

Q: What is the density of an object with the length of 10 cm, width of 5 cm, height of 2 cm, and a mass…

A: The length of the object, l=10 cm   The width of the object, w=5 cm   The height of the object, h= 2…

Q: A car traveled 28 miles in 28 minutes. What was the speed of the car in miles per hour?

A: Given,

Q: What is the frequency of a wave that has a speed of 12 m/s and a wavelength of 15 m?  ____________

A: The expression for the frequency is,

Q: The density of an object whose mass is 50 g and occupies a volume of 50 cubic centimeter is equal to

A: Given in question : Mass of object(m) = 50 g                                  Volume of an object(V)…

Q: A block of tungsten changes in temperature from 15 ˚C up to a temperature of 125 ˚C when 7,500,000…

A: We know that, Cp = 0.133 J/g°C Given, T1= 15°C T2= 125°C Q= 7500000 J

Q: The mass of 1- liter of milk is 1.032 kg. The butterfat that it contains has a density of 865 kg/m3…

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