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Questions in physics

[Answered] Help me what times would it e and where do i put a x to show where London will be in 12 hours time

[Answered] There are some cases where the distance-time graph of a particle is vertical. When is this possible?

[Answered] In a 4x100m relay race, the total track length is 200m, and the time taken by one particular group is 50.2 seconds. What is the average speed and average velocity of that group?

[Answered] The spreading of sound waves around openings in barriers is called: A. reverberation B. an echo C. diffraction D. refraction

[Answered] What is [tex]3xY = 4w[/tex]? Solve for [tex]Y[/tex].

[Answered] A 430 g football is lying on the ground, then is kicked and is moving at 25 m/s. If the duration of the impact was 0.0010 s, what was the average force on the ball?

[Answered] An object that is farther from a converging lens than its focal point always has an image that is: A. inverted B. virtual C. the same in size D. smaller in size

[Answered] A body of mass 2 kg moving in the positive X-direction with a speed of 4 m/s collides head-on with another body of mass 3 kg moving in the negative X-direction with a speed of 1 m/s. During the collision, a loud sound is heard, and they both start moving together. The sound energy cannot be greater than: A) 12 J B) 14 J C) 15 J D) 17.5 J

[Answered] 1. A farmer moves along the boundary of his rectangular field with sides of 10 m x 20 m. The farmer covers 1 m in 1 second. What will be the magnitude of the displacement after completing the total distance traveled? 2. Rahul pedals his cycle from rest to reach a velocity of 10 m/s in 30 seconds. Then, he applies the brakes such that the velocity of the cycle decreases to 6 m/s in the next 5 seconds. Calculate the acceleration and deceleration.

[Answered] An elevator is used to either raise or lower sacks of potatoes. In the diagram, a sack of potatoes of mass 10 kg is resting on a scale that is on the floor of an accelerating elevator. The scale reads 12 kg. What is the acceleration of the elevator?