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Question: An airplane starts from rest and accelerates at 10.8 m/s2.
Part A: What is its speed at the end of a 400 m-long runway?
I want help to find its speed at the end of a 400 m-long runway.
A guitar string is77cm long and has a mass of 3.6 g. The distance from the bridge to the support post isL= 60 cm, and the string is under a tension of525N. What is the frequency of the first overtone
A ladder of length L = 2.3 m and mass m = 19.0 kg rests on a floor with coefficient of static friction ?s = 0.49. Assume the wall is frictionless. What is the normal force the floor exerts on the ladder
a car traveling 85 km/hr strikes a tree. the front end of the car compresses and the driver comes to rest after traveling 0.8m. What was the average acceleration of the driver
A 12 gram bullet is fired into a 100 gram wooden block initially at rest on a horizontal surface. Find the speed of the bullet and block immediately after impact
A soldier has a huge contraption that notches a large 4 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the arrow
A 6 kg block slides along a frictionless horizontal surface. The block is acted on by two forces, a 4.5 N force to the left, and a 7.5 N force to the right. At what rate is the 4.5 N force doing work on the block at the instant when its speed is 4..
A charge of q = +7.07 μC is placed in an electric field. Obtain the magnitude of the force on the charge
It is known that a cubical object made of cast aluminium 0.240 m on a side contains a hollow cavity also in the shape of a cube however of unknown dimensions. If the mass of the object is 36.3 kg, decide the length of each side of the interior cubica..
A ladder 4.9 m long leans against a wall inside a spaceship. From the point of view of a person on the ship, the base of the ladder is 2.9 m from the wall, and the top of the ladder is 3.9 m above the floor. The spaceship moves past the Earth with a ..
A copper washer is to be fit in place over a steel bolt. Both pieces of metal are at 29.7°C. to what temperature must the washer be raised so it will fit over the bolt
suppose a particle with a positive charge were to move a certain distance say 0.1 meters in a uniform electric field.
A cart with mass 220 g moving on a frictionless linear air track at an initial speed of 1.0 m/s undergoes an elastic collision with an initially stationary cart of unknown mass. What is the mass of the second cart
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