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Physics

PhysicsIn typical simplified projectile motion, there are two axes of movement: vertical (yaxis) and horizontal (xaxis). The object flying through the air is in freefall, meaning the net force acting...

PhysicsFor the motion of the ball we can apply equations of motion. Initial velocity (U) = 10m/s Final velocity at top (V) = 0m/s Acceleration due to gravity (g) = 10m/s Since the ball stops at maximum...

PhysicsThe marble is shot at an angle of 30 degrees to the horizontal and has an initial velocity of 40 m/s. The initial velocity of the marble can be divided into 2 components. The horizontal component...

PhysicsUsing the principle of projectile motion, let's consider the horizontal component. x = V_(ix)*t + 1/2 at^2 where the acceleration is zero. So, the horizontal distance (x) travelled by the ball in...

PhysicsThe ball is thrown horizontally with an initial speed of 10 m/s and it hits the ground after 4 seconds. When the ball is released it moves in the downward direction due to the gravitational...

PhysicsHere what we need to recognise is the first law of Newton. His first law of motion says that an object will be at rest or travelling in constant velocity until an external force applied on it. so...

PhysicsUsing laws of linear motion; v = u+at 20 = 0+a*10 a = 2 m/s^2 For angular and linear motion; a = ralpha alpha = a/r alpha = 2/((62/100)/2) = 200/31rad/s^2 From angular motion; theta =...

PhysicsHere we have to memorize the Newtons laws of motion. In his first law of motion of an object he has stated that If the net force acting on a body is zero then the body is at rest or moving in a...

Physicsaccording to Eddington if the direction of time were to reverse, the theoretical statements that describe them would remain true. Yet at the macroscopic level it often appears that this is not...

PhysicsWhile the right hand rule for a straight wire is the one described by another educator, the right hand rule for a LOOP of wire is similar, but notably different. With your right hand, make a...

PhysicsI did not get the answer clearly in google. Can someone please help me??

PhysicsAn object is shot from a canon at a 90 degree angle; it travels 6 m in 6.76 seconds. The object is being shot vertically upwards. The acceleration of the object due to the gravitational force of...

PhysicsThe football player runs 11m in a direction N20E. He then changes direction and then runs 9m towards the east. To find the displacement of the player, divide the initial 11m run in the direction...

PhysicsA clockwise movement is one that moves like the clock's hands: from the top to the right, then down, then to the left, and back to the top. The counterclockwise or anticlockwise directionThe...

PhysicsImpulse is the change in momentum of an object. There are two impulses that your egg design will have to deal with. The first impulse is from the drop itself. Its momentum will increase due to the...

PhysicsHere we have to use the velocity equations. S = Ut+1/2*a*t^2 If we put this equation from the time that starts acceleration to end of 12 seconds, S = distance travelled U = 15m/s a = 21m/s^2 t =...

PhysicsActually, in real lenses, the ray going through the center of the lens does NOT go straight through. It refracts like every other light ray. On entering the lens from air, the light ray is bent....

PhysicsThis uses unitanalysis, a skillset of dimensional analysis. 93000000 miles > ? m Convert to scientific notation `9.3\times10^7 mi` It is known that `10^2 m = 1 cm` `2.54cm = 1 \text(in)`...

PhysicsI would go into college and take classes in both and see if that leads to any discovery. It's great that you are focused and have a plan, but you college level classes will be much different than...

PhysicsError!!! Sympathetic!!! The Bottle consists.......

PhysicsIt is an interesting problem and would be better if put in Q&A section as there is only one possible solution as under: 100 ohm > using single resistor, not putting other two in circuit...

PhysicsSome students may feel that physics isn'important to them. They may not find it interesting or useful. Of course, one day they will discover that physics is everywhere. If you are having trouble...

PhysicsWhen light rays reflect, the angle of incidence (the angle from which the ray is different from the normal of the surface, or the imaginary line coming straight out of the surface) is equal to the...

PhysicsPhysics is the study of matter and energy. Since matter and energy are the two things that the entire universe is made of, physics is really the foundation of all the sciences. For convenience,...