SA -29 S2 -29 S3 S6

Q: ball is dropped from a cliff. The height of the cliff is 180 meters. At what speed does the ball hit…

A:

Q: 4. In a vacuum tube, a feather is seen to fall as fast as a coin. This is because a) gravity doesn't…

A: When two objects are dropped from a height because of air resistance, the lighter object falls…

Q: A block of mass M has a string of mass m attached to it. A force F is applied to the string, and it…

A: Given: The mass of the block is M. The mass of the rope is m. The angle of the inclination of the…

Q: 20) Two blocks are touching on a horizontal surface. The left block has a mass of 2.0 kg. The right…

A:

Q: whirling ball at the end of a string breaks and what happens   a.follows a straight line. b.follows…

A: A whirling ball at the end of a string breaks and what happens

Q: 45) When rolled down a mountain was 1.8 m/s. What was the ar A) 57 ° B)

A: Given Data: The velocity at the time of rolled down is, v=7 m/s The horizontal component of velocity…

Q: What is the net force on a 3 kg bag that is pulled down with a force of 50 N: Select one: O a. 20 N…

A: There's something wrong with the question. In case the bag is pulled down , the net force will be…

Q: Your friend and you are both in Calgary for a chess tournament. You each drive your own vehicle to…

A: In order to understand this, look at the picture.

Q: A tennis ball is dropped from the top of a tall building. A second tennis ball is thrown down from…

A: A tennis ball dropped from the top of a tall building. A second tennis ball is thrown down from the…

Q: You are driving car ahead lose control goes off road hit a tree. When I get to car driver is slump…

A: Firstly, u should picup the baby and remove him from the car. You should try to stop the babi's…

Q: contact force between À and B contact force between B and C

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Q: A car travles 55 miles per hour for 2 hours at a constant speed what speed is the car going

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Q: A person crashes the car into a tree Which deploy is the airbag how does the airbag improve the…

A: Airbags are passive safety features designed to mitigate or prevent injuries among drivers and…

Q: A stone that is initially at rest dropped from the top of the building. It falls for 5.0s before…

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Q: Force being experienced when it is connected to a spring. Spring Force Compressed Stretched Spring…

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Q: baseball player throws a baseball 5.25 Oz with a force that accelerates at a rate of 80 miles per…

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Q: Your friend and you are both in Calgary for a chess tournament. You each drive your own vehicle to…

A: Velocity is the time rate of change of displacement. Acceleration is the time rate of change of…

Q: An object sitting on the edge of a table. A bullet shot up into the air before it gets to the top. A…

A: Potential energy is defined as the energy possessed by an object by virtue of its position (height…

Q: A mass of 20 kg is suspended from a ceiling by two lengths of rope that make angles of 60° and 45°…

A: Given  Mass, M = 20 kg   Angle 60° and 45 °

Q: what is the force of friction acting on the 8.0 KG box if it is moving at a constant speed down the…

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Q: The picture above shows a girl holding a balloon above her head. The balloon is lifting her hair…

A: Given: The balloon is pulling upward on her hair, and that force is half of a third law pair of…

Q: clate the net force acting on the object in the figure. 130 N x 30 N

A: Hi. as you have posted multiple questions and have not specified which question needs to be solved,…

Q: A ball rolling along the ground gradually slows down and finally comes to rest is due to ________.…

A: Introduction: When the ball starts rolling then the kinetic energy decreases and finally come to…

Q: A train and car are going the same speed but it takes the train longer to stop. [ Select] An…

A: A train and car are going the same speed but it takes the train longer to stop.  Answer: Newton's…

Q: A worker drags a crate across a factory by pulling a rope tied to the crate. The worker exerts a…

A: Given: Force exerted by the worker on the rope = 388.6416 N The angle of inclination = 380 The…

Q: One end of a 30-m rope is tied to a tree; the other end is tied to a car stuck in the mud. The…

A: The FBD of the given situation is given below. Here, T is the tension in the rope and that is…

Q: resistance

A: Given: A rope lifts a bucket upward at a constant speed while ignoring air resistance.

Q: A train boxcar is rolling along a track, headed east at 10 mph. It hits a west-bound pair of cars…

A: Given data: Speed of train boxcar is, u=10 mph. Speed of bound cars is, u'=2 mph. Speed of boxcar…

Q: A person steps on to a scale in a stationary elevator and notes their weight. The elevator begins to…

A: A person steps on a scale in a stationary elevator. The elevator begins to accelerate downward.

Q: Two Men and a Truck Movers need to lower a piano out a third story balcony doors onto the ground…

A: Write a given values of this question. T=2285Nθ=69∘

Q: 4. In a vacuum tube, a feather is seen to fall as fast as a coin. This is because - a) gravity…

A: In a vacuum tube, a feather is seen to fall as fast as a coin. The experiment of feather and coin…

Q: Two masses of weight 30.0 NN are suspended at opposite ends of a rope that passes over a light,…

A:

Q: Two objects (41.0 and 20.8 kg) are connected by a massless string that passes over a massless,…

A: Given; mass M1=41 kg M2=20.8 kg a=?

Q: What force act as sources of resistance to chang

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Q: Two blocks of mass m and M are hanging off a single pulley. Determine the acceleration of the…

A: Suppose that the two blocks hang through the pulley as in an Atwood machine. Consider the downward…

Q: Vx+5-V5

A:

Q: A 3.5-kg block rest on a horizontal tabletop. A cord is attached to this block, the cord passing…

A: Given 1st block mass, m1=3.5 kg 2nd block weight, w2=5N Standard quantities g=9.8 m/s2

Q: A motorboat is driven across a river at 10.0 km/h at a right angle to a current that is flowing at…

A: The river current is flowing at the rate of 3.0 km/h and the motorboat isriding at a right angle to…

Q: A hockey puck glides to the right across the ice at a constant speed. Ignore air resistance.

A: Given data: Hockey puck glides to the right Speed is constant Air resistance is negligible…

Q: A 5kg box slides across a frictionless floor : List the forces acting on the object

A: For a box at rest on a horizontal frictionless floor, there are 2 forces. They are the weight of the…

Q: A car travelling at 100 km/h strikes an unfortunate bug and splatters it. The force of impact is…

A: Your answer is option (c) same for the both

Q: A 2-kg mass and a 4-kg mass hang freely at opposite ends of a light inextensible string which passes…

A: It is given that,

Q: A roller coaster at the top of a hill is moving at 9 m/s. When it reaches the ground it is moving at…

A: In the given question We have to determine the height of the hill.

Q: In a lecture demonstration, a can drop from a magnet just when a bullet is shot from a gun. Find the…

A: Consider the situation in the diagram below. Let us assume that the gun is pointing straight…

Q: Your friend and you are both in Calgary for a chess tournament. You each drive your own vehicle to…

A: Velocity : Velocity is the rate of change of displacement Velocity is a vector quantity. It has both…

Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.