Why does the SI Measurement System use “kilogram” instead of “gram” as the base unit of mass?

Q: Michael and Mikaela are practicing their stunt for the figure skating competition. For them to start...

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Q: A 3.2 kg cart was initially moving at a rate of 6.4 m/s. After colliding with a brick, the two bodie...

A: mass of cart (M) = 3.2 kg mass of brick = m Initial velocity of cart (U) = 6.4 msInitial velocity of...

Q: Which of the following is NOT a unit for density? a. lb/ft b. g/mL c. kg/m² d. g/cm'

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Q: Is a homoclinic orbit closed in a phase space and can it be periodic?

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Q: Charge=7 mC time=3 s Determine current

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Q: A heart defibrillator passes 11.5 A through a patient's torso for 5.00 ms in an attempt to restore n...

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Q: If you are holding a 25lb weight in your hand 30cm from your elbow joint and your biceps brachii is ...

A: In this case we have to observe all the torque acting on the body. Let us suppose elbow join as the ...

Q: A cloud of 〖"2.5x10"〗^19 electrons move past a given point every 2 seconds. How much is the intensit...

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Q: A single strand of wire of adjustable length is wound around the circumference of a round balloon th...

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Q: A small charge 36q is found in a uniform electric field 71 kN/C. Determine the force on the charge.

A:  Given charge q=36c  And electric field E=71kN/c  We know that F=qE  So we have to find the force Th...

Q: Determine the internal moment at A caused by the vertical loading. AN

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Q: At the height 80 m, an aeroplane is moving with 150 m/s. A bomb is dropped from it so as to hit a ta...

A: Given information: The height of the aeroplanen (h) = 80 m The velocity of the aeroplane (vx) = 150 ...

Q: A 2 kg frame is hung in a ceiling as shown. Find the tensions T1 and T2 in the rope. 30° T1 40° T2 2...

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Q: - Determine the x and y position at which a ball thrown up to the right will strike the inclined sur...

A: Motion of projectile can be divided into x component and y component. 

Q: Problem 4: A box m = 67 kg is being pulled by a constant force F = 178 N at an angle of 0 = 28 degre...

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Q: A 5.0-kg object is pulled along a horizontal surface at a constant speed by a 12-N force acting 300 ...

A: Given data:  Force (F) = 12 N Angle (θ) = 30° above the horizontal  Distance (s) = 8.0 m Required: W...

Q: An object is moving in a straight line with constant acceleration. Initially it is traveling at 16 m...

A: Given that:- Initial velocity of an object=16m/s

Q: The contestant now pulls the block of ice with a rope over his shoulder at the same angle above the ...

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Q: A 2 kg frame is hung in a ceiling as shown. Find the tensions T, and T2 in the rope. 30° T1 40° 2 kg

A: The forces can be resolved into components as shown below

Q: Two equal point charges 10 cm apart exert a force of 1 x 10^-3 grams on each other. Find the value ...

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Q: A sound wave in the air has a frequency of 405 Hz. What is the wave length? Calculate for a sound wa...

A: Speed = frequency × wavelength Case 1 :- frequency = 405 Hz. Speed of sound in air at room temperatu...

Q: Vector  is 10.00 units in length and points along the positive x axis. Vector  is 4.00 units in leng...

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Q: A commuter airplane starts from an airport and takes the route shown in the figure below. The plane ...

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Q: ON A CERTAIN DESERT LAND, A HORSE IS RUNNING AT A SPEED OF 60 MPH. HOW FAR BACK OF A STOP WAGON SHOU...

A: Given that:- Speed of horse=60mph

Q: The heavy ball is 2 to 3 times heavier than the lighter ball. Does the heavier ball accelerate down ...

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Q: Given the indicated crystallographic direction, determine its indices in the Miller-Bravais system. ...

A: In this question we have to find the indices of the given system. Please give positive feedback if t...

Q: A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 21.0° below th...

A: Image_1

Q: A solid nonconducting sphere of radius R carries a charge Q distributed uniformly throughout its vol...

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Q: Determine the distance traveled (m) at t=180s in the graph below. Round off your answer to the neare...

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Q: A ball of mass 100 g, projected at an angle of 25° from the ground with an initial velocity of 12 m/...

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Q: Identify whether the following quantities are SCALAR or VECTOR. Write S if it is SCALAR or V if it i...

A: A quantity is a scalar which has only magnitude while a vector quantity has both magnitude as well a...

Q: A girl weighing 470 N, holds suspended on the end of a rope 8 meters long. What will be her gain in ...

A: Given data: The weight of the girl, W=470 N. The length of the rope, l=8 m. The angle made by the r...

Q: Under what condition is average velocity equal to the average of the object's initial and final velo...

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Q: Suppose the coefficient of static friction between the road and the tires on a car is 0.807 and the ...

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Q: A super-insulated house is at a temperature of 20°C. The temperature outside is 0°C. The surface are...

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Q: There are very large numbers of charged particles in most objects, Why, then, don't most objects exh...

A: There are very large numbers of charged particles in most objects, Why, then, don't most objects exh...

Q: Directions: Anytime a force vector is directed at an angle to the horizontal, the trigonometric func...

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Q: At what temperature is the Celsius scale reading equal to twice the Fahrenheit scale reading? a. -12...

A: Given  TC = 2TF

Q: A car travels at 15 m/s for 10 s. It then speeds up with a constant acceleration of 2.0 m/s2 for 15 ...

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Q: Assuming that the field of view is flat, what is the resultant vector (yellow line) of an observer p...

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Q: Four charges form an isosceles trapezoid: Q1 = +2C is located at vertex X; Q2 = -3C is located at ve...

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Q: a car accelerates from rest at 2 meters per second per second, its speed 3 seconds later will be ot ...

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Q: Two trucks of equal mass collide at a 90° intersection. If the momentum of truck A is 9.50x104 kg km...

A: Given that:- pA=9.5×104 kg.km/h (East)pB=1.05×105 kg.km/h (North)m=mass of each truck

Q: The time constant of an RC circuit is 3.7 seconds.  How much time is required for the capacitor (whi...

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Q: Two cannonballs are dropped from a second floor physics lab at height h above the ground. Ball A has...

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Q: The kinetic energy of a 4.0 kg object moving at 3.0 m/s is: 1. 12 J *2. 18 J 3. 36 J 4. 48 J

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Q: forward speed as the​ engine, rejoined the engine 1 sec after it was fired. The measure of the angle...

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Q: Two car horns have an average frequency of 420 Hz and a beat frequency of 40 Hz. What are frequencie...

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Q: a. 30 psig to kPa absolute O 308.111 O 380.111 O 239.123

A: a) To convert 30 psig to kPa absolute   

Q: A car accelerates from rest at 7.55 m/s2 for 4.25 s. Determine the final velocity of the car.

A: Given data : Initial velocity=U Acceleration=a Time=t   Required :  

Estimate of calculation