R=80 Ri R2 120 60- 30

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

A:

Q: A bridge is made with segments of concrete 50 m long. If the linear ekpansion coefficient is 12 x 10...

A: Answer:-  Given  Coefficient of linear expansion (alpha) = 12 × 10-6(oc)-1 = 0.0000012  Original len...

Q: ACTIVITY 11 1. Two cars, A and B have speed of 25 kph and 40 kph in constant speed respectively. If ...

A:

Q: An airplane flies 200 km due west from city A to city B and then 275 km in the direction of 36.0° no...

A:

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: SET B : A 4.5 TONS OF RECTANGULAR BLOCK OF ICE HAS THE FOLLOWING DIMENSIONS: 6.5 ft in length; 3.25 ...

A:

Q: 2. While walking along a trail next to a long straight concrete-walled irrigation ditch you notice a...

A: Correct answer is option (d) i.e. the direction will be east

Q: An object is moving along the a-axis. At t = 0 it has velocity voz = 19.0 m/s. Starting at time t = ...

A: Given that:- v0x=19 m/sax=-Ct m/s2C=? m/s3

Q: Two balls, A and B, collided together. Ball A has a mass of 0.6 lbs and an initial velocity of 2.25 ...

A:

Q: 12. For Ramp A, write cos(40o) and sin(40o) in terms of W, W‖ , and W⟂ . 13. Rearrange your answers...

A:

Q: A road with a radius of 75.0 m is banked so that a car can navigate the curve at a speed of 15.0 m/s...

A:

Q: When a projectile reaches the highest point the horizontal component of the acceleration is:   E) N...

A: Given data:  A projectile motion Object at highest point Required: The horizontal component of the a...

Q: 3. Three point charges are q, = -5.0 mC, q2 = -55 µC and q, = +70 pC are placed at the vertices of a...

A: q1 = -5 mC q2 = - 55 μC q3 = 70 μC side (d) = 0.25 m   

Q: In a test run, a certain car accelerates uniformly from zero to 19.8 m/s in 2.50 s. (a) What is the ...

A: Given: Initial velocity , u = 0 Final velocity, v = 19.8 m/s Time , t = 2.50 s   To determine: (a) ...

Q: Calculate the speed of a satellite moving in a stable circular orbit about the Earth at a height of ...

A: Given value--- height = 4800 km. We have to find--- speed of satellite?

Q: 1. An iron atom has 26 protons, 30 neutrons and 26 electrons. a. What is the total charge of its nuc...

A:

Q: (a) What is the fundamental frequency of a 0.672-m long tube, open at both ends, on a day when the s...

A: The answers are below 

Q: In the Daytona 500 auto race, a Ford Thunderbird and a Mercedes Benz are moving side by side down a ...

A:

Q: A proton moves perpendicular to a uniform magnetic field B at a speed of 1.70 x 1o' m/s and experien...

A: Given F→=mpa→=mp(1.80×1013)i→v→=1.7×107k→

Q: 8. A boat always points directly at the opposite shore while crossing a river. The time it will take...

A:

Q: If cell size does not change and we reduce N, then the capacity increases. How?

A: Yes, If cell size does not change and we reduce N, then the capacityincreases. 

Q: The heat of fusion of a substance is 80 cal/gr, so the heat required to melt 2 kg of the substance i...

A: Given data:  Heat of fusion (Lf) = 80 cal/g Mass (m) = 2 kg = 2000 g Required: Heat (Q) 

Q: A ball is thrown downward from the top of a building with an initial speed of 25 m/s. It strikes the...

A: Given: u =25 m/st=2.0 s

Q: The sound intensity level in restaurant B is 5 dB higher than that in restaurant A. How many times o...

A:

Q: ACROS 1 Tells which way the object is moving. 3 A place where an object is located. 4 The change in ...

A: ACROSS (1) The path through which an object moves is direction. Every object moves following a parti...

Q: Three resistors are made out of three different materials and Material 1 0.00367 Q·m have different ...

A:

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 (Vi) = 0 m/s Acceleration (a) = 7.55 m/s2 Time (t) = 4.25 s Required: ...

Q: Scientists have studied how snakes grip and climb ropes. In one study, they found that an important ...

A: Let us look at the upper node. The tension everywhere in the rope supporting mass M be T3=mg. This i...

Q: minimum speed does he require if he lands at the initial level? 3) A motorcyclist plans to jump acro...

A: Part (3): Given: The width of the gorge is 32 m. The angle of the projection is 18o.

Q: 1. Force required to pull the blocks 2. If the force is transferred to the top block, will the top b...

A:

Q: 4. Which of the following properties of a cross product is FALSE? C, D, and E are vectors. I. C x D ...

A: 1. The Cross product of three vectors is    A×B =ab sinθ nhere,n is the unit vectorA,B are vecotors....

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: Given data Charge=7 mC time=3 s Determine current

A:

Q: How much work is done by the force of gravity when a 45N object falls to the ground from a height of...

A:

Q: A square surface area with side length of 2cm is in the yz plane at x=0, Find the magnitude of the m...

A:

Q: F1y - ZZ Problem 2.4 Consider forces shown in Fig. 2.18. FR is the resul- tant force vector making a...

A:

Q: A block of mass m; = 4.0 kg is put on top of a block of mass mp = 7.0 kg. To cause the top block to ...

A: Since 19 N force must be applied to slip top block so frictional force between the two blocks must b...

Q: A kayaker travels down a river at a speed of 16 m/s [down river] relative to ground, with the curren...

A:

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: The airspeed of a small plane is 150 km/h. The wind is blowing at 96 km/h [E 15•S]. Determine the ve...

A: We darw a vector diahgam on the x-y plane here the velocity of the plane vp and the velocity of the ...

Q: Two objects are dropped from a bridge, an interval of 1.0 s apart. Air resistance is negligible. Dur...

A:

Q: O Part 1: Mass Spectrometer As shown below, a charged particle is moving through a region that has a...

A: Clearly the electric field will exert a force to right side. So magnetic force much be to the left w...

Q: A ball is launched from ground level with an initial upwards velocity of 20 m/s and an initial horiz...

A: Given : Initial upwards velocity = 20 m/s and an initial horizontal velocity = 30 m/s.   Hence, the ...

Q: The best leaper in the animal kingdom is the puma, which can jump to a height of 12.7 ft when leavin...

A:

Q: Problem3 A. Consider the circuit shown below Rank the brightness of the bulbs. Use the symbols , and...

A: Given that:- Resistance of each bulb=2 ohm

Q: 3. A charge of 12 µC when placed in electric field experiences a force of 648N. What is the magnitud...

A:

Q: A student of weight 641 N rides a steadily rotating Ferris wheel (the student sits upright). At the ...

A:

Q: What is the total current of the circuit? * 11.265 What is the current in the 20-ahm resistor? * 4.0...

A:

Q: Describe the arrangements of the angles and lattice parameters for 4 crystal systems of your choice

A:

Q: A water jet consumes 3650W for 126 hours a week What is the energy consumed (kWh) for a one-year pe...

A: