A 50 kilogram ice skater glides across the ice in a straight line at 7 meters per second. If she bends down and scoops up a 20 kilogram child standing on the ice, what will be the final speed of the skater and the child?

Q: Determine the height of a rocket that stands 979.0 inches tall in meters

A: Relation between inch and meter  1 inch = 0.0254 meter

Q: what was the average speed in meters per second of a race car that travels once every 8 seconds…

A: Radius of the circular track is r = 70 mt Time taken by the car is T = 8 s

Q: This is defined as the change in kinetic energy of any matter in the universe Meter…

A: Given : Change in Kinetic Energy Required : Physical quantity related to the the change in kinetic…

Q: 3 kilogram ball is dropped from the top of a building that is 140 meters high. what is the velocity…

A: When a body is at some height it will have its own potential energy, as it gains speed the stored…

Q: Gladys leaves a town driving at a rate of 40 miles per hour. Two hours later, Reena leaves from the…

A: The speed is given by,  s=dt It is given that Glady's driving at a rate of 40 miles per hour. That…

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: 57. If the speed of a car is doubled, its kinetic energy is (1) halved (2) doubled (3) quartered (4)…

A: Post the remaining questions so that question can be answered.

Q: If you're driving along the highway on a motorcycle at 27 meters per second (60 miles per hour) and…

A:

Q: A rocket is being launched. After a while, it rises at a constant velocity of 5 miles per second. An…

A:

Q: A speck of carbon dust may contain as many as 30 billion atoms of carbon, each atom having a mass of…

A: The energy associated to mass is given by the Einstein's mas energy equivalence.  E = m c2 where, m…

Q: A car drives for 3.47 hours at a speed of 62 miles per hour. What is the distance traveled in…

A:

Q: A 10.5 kg object is moving with a velocity of 2.5 ms-1. If its velocity is increased to 5.5 ms-1,…

A:

Q: What is the mass of object D? Show all the work

A: Assume the scale is along the x-axis with origin at the center. The right side will be positive…

Q: 38. When a 5-kilogram mass is lifted from the ground to a height of 10 meters, the gravitational…

A: when the object from its initial position is lifted by height h on earth then the gravitational…

Q: A car drives for 2.74 hours at a speed of 64.5 miles per hour. What is the distance traveled in…

A:

Q: If you're on a Ferris wheel at a carnival, seated 10 m from the Ferris wheel's axis that makes a…

A:

Q: A 1.2 ton car moving at 30 kilometers per hour bumps the rear of a 1.8 ton car moving in the same…

A: Given data: The mass of the first car, m1=1.2 ton. The mass of the second car, m2=1.8 ton. The…

Q: A plane flies 2800 miles in 7 hours how fast is the plane going

A: Scenario - A plane files certain distance in a certain time. Given : Time →t=7 hrs Distance →s=2800…

Q: If the escape speed of earth is 12km/s, what would be its mass in kg (write in 4 significant…

A:

Q: What was the average speed in meters per second of a race car that travels once every 8 seconds…

A: Here, we have Radius of circular track, r = 20 m time taken by car to complete the track , t = 8 s…

Q: what was the average speed in meters per second of a race car that travels once every 8 seconds…

A: The average speed of the car is, vavg=2πrT Here, r is the radius of the track and T is the time…

Q: It takes an airplane one hour and forty-five minutes to travel 500miles against the wind and covers…

A:

Q: Is there potential energy or kinetic energy in space? Why or Why not?

A: Reason; Gathering of every charges in space, for example, having electromagnetic potential energy.…

Q: A boy on a skateboard coasts along at 5 m/s. He has a ball that he can throw at a speed of 10 m/s.…

A:

Q: How long would it take in seconds to travel a distance of 2000 meters if you are traveling at a…

A: Write the expression for time taken, and substitute 2000m for d, and 25m/s for v in the below…

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 1 kilogram ball is dropped from the top of a building that is 180 meters high. what is the…

A:

Q: you were traveling away from a planet at 99% the speed of light, and turned on a flash light…

A:

Q: 60 Joules of light energy from the sun is used to bring a solar-powered car from rest to a constant…

A: Out of 60 J energy, 15 J energy is converted into thermal energy. Hence, the rest of the energy is…

Q: The force between tuo chargges Of -3X109 C that orc 5omm opart is IS a. 1-8x10 N d 3.2X10 b.3.16…

A: Given : Magnitude of charges, q1 = q2 = -3×10-9 C Distance between the charges, r = 50 mm = 0.05 m

Q: Suppose you have four cubic meters of copper, two cubic meters of uranium, three cubic meters of…

A:

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: twelve story building and look over the edge to the reflecting pool 170 feet below. You drop your…

A: We know that the third equation of motion is given as  v2= u2+2as here v is the final velocity, u is…

Q: Would it be possible for a (0.04 kilogram) to have the same kinetic energy as a moving car (2100…

A: Given  Mass m1=0.04kg m2=2100kg

Q: An object of mass M-1.5 kg moves with a velocity (5.0 i-3.0 ) M/3. n the object to change its…

A: Given values:- Mass of object,(M)=1.5 kg -----(1) Initial velocity,(VI)=5i^-3j^ m/sec -----(2) Final…

Q: What is the speed of a rocket that travels 9000 meters in 12.12 seconds?

A: Given ,         Distance=9000 meters           Time= 12.12 seconds

Q: A ferris wheel that is 14 m in diameter makes a revolution every 40 seconds. The center of the wheel…

A:

Q: the speed of light is 670.6x10^6 miles per hour. what is the speed of light in units of meters per…

A:

Q: How much time is needed for a force of 20 Newtons to change the velocity of a 5 kilogram mass by 4…

A:

Q: Starlink is a communications satellite spearheaded by Elon Musk to redistribute the internet speed…

A:

Q: 10 kg 2 1.75 15 1.25 1 0.75 0.5 0,25 b25 0.5 0.75 1 1.25 1.5 1.75 Meters Meters A

A: When the objects are balanced on a see-saw bridge, the moments in the clockwise direction are equal…

Q: What is energy healing?

A: ENERGY HEALING Energy healing is a treatment process which is used as complementary and alternative…

Q: What is the kinetic energy of a 3-kilogram ball that is rolling at 2 meters per second?

A: Given, Mass, M= 3 kg, and velocity, v=2 m/s.

Q: The potential energy of a 40 kg cannon ball is 14,000 Joules.  How high (in meters) was the cannon…

A:

Q: What will happen? 40 kg 30 kg kg 2 1.75 1.5 1.25 1 0.75 0.5 0.25/ 0.25 0.5 0.75 1 1.25 1.5 1.75…

A: