A train 100 m long is moving with the velocity of 72 km/hr. Find the time it takes to cross the bridge which is 2 km long?

Q: A student performs an experiment in which a fan unit is mounted on a cart that also has a friction…

A: The force exerted on the cart by the fan unit is towards the right which is trying to move the cart.…

Q: Q.07 A capacitor uses an connected to a network. Fill in the blank. Q.08 An inductor uses a(n)…

A: The energy UE and energy density uE stored in a capacitor is UE=12CV2uE=12εoE2where C is…

Q: Let there be a disk shaped merry-go-round of radius R = 2m and mass M = 90 kg with a 30 kg child…

A:

Q: 7. In your own words, describe the concept of sound intensity. K/UC

A: Before moving to concept of sound intensity, we'll discuss what is sound?  All types of waves…

Q: a) What is the acceleration of the object? b) how fast the object is moving after traveling 1.24 m,…

A: Given data: The weight of the object is: W=68 N The force on the object is: F=82.6 N The angle of…

Q: A solid cylinder of mass 4.9 kg and radius 4.8 cm rolls down an inclined plane of height 7.4 cm…

A: Speed of the center of mass. From conservation of energy

Q: The drawing shows a square, each side of which has a length of L = 0.250 m. Two different positive…

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Q: An electron is projected with an initial speed v0 = 5.30x106 m/s into the uniform field between the…

A: Given:-  An electron is projected with the initial speed v0= 5.30×106 m/s into the uniform field…

Q: A drum with a 500-mm radius is attached to a disk with a radius of 250 mm. The disk and drum have a…

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Q: of light rods, light strings, an

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Q: A 4.80-kg block is set into motion up an inclined plane with an initial speed of v₁ = 8.20 m/s (see…

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Q: Mk=0.7. 10 kg TIR A 10-kg box is at sliding to the right on the floor. A rope is attached to the box…

A: mass of box = m = 10 kg co efficient of friction = 0.7 acceleration = a = 6 m/s2

Q: 1. Four students are trying to move a table from one corner of the classroom to another, as…

A: Given Data: Let us consider the given forces acting on rectangular table. We are to find resultant…

Q: How do the particles in a sound wave move in relation to the path of the wave that carries them? O…

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Q: Consider the loop-de-loop track. A small round object with radius r<<R is placed on the track at…

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Q: Problem 1 A rock is thrown straight upward at 9 m/s just over the side of a raised deck, 5.5 m above…

A: Initial velocity of the rock, Height from which the rock was thrown,

Q: Part A A net force along the x-axis that has x-component F. = -12.0 N + (0.300 N/m2)æ² is applied to…

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Q: Please help me solve these problems.

A: The velocity of the first ball is

Q: Place a marker at the tip of (each) intermediate images' arrow. Place the "Final image" marker at…

A: We need to draw the ray diagram for the given combination of lens.

Q: Sound exits a diffraction horn loudspeaker through a rectangular opening like a small doorway. Such…

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