A motorist travels 160 km at 80 km/h and 160 km at 100 km/h. What is the average speed of the motorist for this trip?   D) 91 km/h    E) No answer   C) 90 km/h   A) 84 km/h   B) 89 km/h

Q: You have an equilateral triangle, and it happens you place three changes 14C, -66C, 46C on each vert...

A:

Q: Q3. A football team's kicker punts the ball (mass = 0.4 kg) and gives it a launch speed of 30 m/s. F...

A: Given data:  Mass (m) = 0.4 kg Initial velocity (Vi) = 0 m/s Final velocity (Vf) = 30 m/s Time inter...

Q: A very thin oil film (n=1.25) floats on water (n=1.33). What is the thinnest film (but not zero) tha...

A: Given: refractive index of oil n1 = 1.25refractive index of water n2 = 1.33wavelength of light λ = 5...

Q: If the reflectivity coefficient of the laser mirrors is (0.999 & 0.95) and the sum of the losses for...

A: To calculate the effective mean gain  G we must find the loss factor(M) All losses ,1-M=0.696 or M=0...

Q: Two thin lenses with focal lengths of magnitude 15.0, the first is diverging and the second convergi...

A:

Q: A pitcher bestows a power of P = 206 W to a baseball of mass m = 0.095 kg for a period of t = 0.28 s...

A:

Q: A CD with a diameter of 12.0 cm starts from rest and with a constant angu acceleration of 1.00 rad/s...

A: We know that the formula of the first equation of the angular motion is given as  ωf= ωi+αt where ωf...

Q: Three astronauts, propelled by jet backpacks, push and guide a 104 kg asteroid toward a processing d...

A:

Q: The figure shows the light intensity on a screen 2.7 m behind a double slit. The wavelength of the l...

A:

Q: The following graph shows position versus time for a car. Which of the statements below best describ...

A: We have a position vs Time graph of the car. here in the graph, we show the four rZone A, B, C, and ...

Q: In figure, each capacitor has C = 4.00 µF and Vab = +28.0 V.  Find the following: a) equivalent ca...

A:

Q: 4) An object's angular velocity changes from 3 rad/s clockwise to 8 rad/s clockwise in 5 s. What is ...

A: Angular acceleration refers to the time rate of change of angular velocity.  Here, we calculate the ...

Q: Two points, A and B, are separated by 0.0493 m. The potential at A is +80.1 V, and that at B is +39....

A:

Q: The moment of a force about a point is equal to the sum of the moments of the components of the forc...

A:

Q: Four 3 pC charges are at the corners of a 1-m square. Two charges on the left are positive and the o...

A:

Q: Figure 22-32 shows two harged particles on an x axis: -q = --3.20 x 10-19 C at x = -3.00 m and g= 3....

A:

Q: What is the value of Tension 1? 45 m- 1o kg A) 87.91 N B) 37.5 N 75.12 N 72.06 N

A:

Q: 5. The graph below shows the displacement of a particle in a wave of wavelength 4.0m. Determine the ...

A:

Q: Figure 27.6 shows a ray of light PQ striking a mirror AB. The mirror AB and the mirror CD are at rig...

A: 1. Angle of incidence: It is the enclosed angle betwen the incident ray and normal to the mirror. 2....

Q: 7) A projectile is launched from a platform with height of 10 m above the ground. The initial veloci...

A:

Q: в (15.0 m) D (10.0 m) 30.0 53.0 25.0 Č(12.0 m) Ä (8.00 m)

A:

Q: A freezer sustains a cold environment of -32°C and exhausts its heat at 39°C. Assume a Carnot cycle....

A: The given data   The initial temperature T1 = -32°C = -32+273 = 241 K The final temperature T2 = 39°...

Q: 1.2-cm-wide diffraction grating has 1000 slits. It is illuminated by light of wavelength 500 nm. Wha...

A:

Q: An airplane flying at 200.0 m/s makes a turn that takes 4.0 min. What bank angle is required? What i...

A:

Q: The boat's position during the interval of time from t 2s to t= 10 s is given by s = 4t + 1.6t-0.08 ...

A:

Q: A truck of mass 3000-kg is moving on a circular path starting from point A (see figure) at constant ...

A: Given that:- Speed of truck on circular track=5m/s

Q: An object is thrown vertically upward with a speed of 12 m/s. How much time passes before it reaches...

A:

Q: "ysis The most powerful engine available for the classic 1963 Chevrolet Corvette Sting Ray A. develo...

A:  A.  327 cubic inches are 327·2.543 cm3    =3884 cm3. And since 1000 cm3 are 1 L,              this ...

Q: A dynamite blast at a quarry launches a chunk of rock straight upward, and 3s later it is rising at ...

A:

Q: 37. A beam of X-rays with wavelength of 0.154 nm is directed to certain planes of a silicon crystal....

A:

Q: i j = k Ả ·B = AB sin 0 Ả xB = B × Ả I. I. %3D II.

A:

Q: A 0.50-mm-diameter hole is illuminated by light of wavelength 510 nm. What is the width of the centr...

A:

Q: In the figure, the total resistance is 10kΩ, and the battery's emf is 20.0 V.If the time constant is...

A:

Q: Consider the sealed containers (same fluid and on the same ground level) below with heights given in...

A:

Q: A 490 kg rocket sled can be accelerated at a constant rate from rest to 1500 km/h in 2.1 s. What is ...

A:

Q: Two sailors are at the tops of their ships' masts in the open ocean.The mast of ship A is twice as h...

A: Since, d=3.855h where, d=distance in kilometres(km). h=height of mast in metres(m).   Hence, d=kh   ...

Q: Two small charged spheres are placed in vacuum on the x-axis q1 = +50 µC at x = 0 and q2 = -8.0pC at...

A: Let q be the charge placed at x=a. Let the charge q be placed at a distance of r to the left of char...

Q: An airplane is flying at 90 m/s [SW]. The pilot performs a 180° turn in 30.0 s without changing spee...

A:

Q: A carton is pulled along the ground for a distance of 11 m. If the average frictional force is 57 N,...

A: Work done is defined as  W=F→·S→where F is the force S is the displacement Here the Frictional force...

Q: east-west and are 35 miles apart. The west man spots a tornado at bearing N43°E and the east man spo...

A:

Q: at are the differences between characteristic X-rays and continuous x-ray spectrum? How are they p

A:

Q: Inductive battery chargers, which allow transfer of electrical power without the need for exposed el...

A: This question is based on Electromagnetic induction topic. The emf induced in the coils are in direc...

Q: Problem 9 A 0.35 kg plastic cart and a 18 kg steel cart can both roll without friction on a horizont...

A: Given that, Mass of the plastic cart (mp)= 0.35 kg Mass of the steel cart (ms)= 18 kg Let F be the a...

Q: 5. Which physicist first demonstrated that heat is a form of energy? a. Amedeo Avogadro b. Robert Bo...

A: Option (d) is correct.

Q: 1. An object travels 65 m west and then 80 m east in 10 minutes, what is the ratio of average speed ...

A: GivenAn object travels 65 m west and then 80 m east intime  10 minutes

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

A:

Q: much heat transfer (in kcal) is required to raise the temperature of a 0.600 kg aluminum pot  contai...

A: Given mass of aluminium = 0.6 kg  Mass of water = 3 kg  Initial temperature = 10 0 C  Final temperat...

Q: Calculate the gravitational potential energy of a 10 kg mass located 5 meters above the surface of t...

A: The formula for the gravitational potential energy near the earth's surface is given as,            ...

Q: SInall, ucting of mass m C (distributed uniformly through its vol- hangs from an insulating thread t...

A: For equilibrium net force acting on the system must be zero and horizontal as well as vertical force...

Q: Light from a sodium lamp (λ = 589 nm) illuminates two narrow slits. The fringe spacing on a screen 1...

A: Given wavelength λ = 589 nm = 589 × 10-9 m  distance between slits and screen  D = 150 cm = 1.5 m  f...

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –