# Physics Homework Help

### Showing All Questions Answered Popular Recommended Unanswered Editor's Choice in Physics

• Physics
In typical simplified projectile motion, there are two axes of movement: vertical (y-axis) and horizontal (x-axis). The object flying through the air is in free-fall, meaning the net force acting...

Asked by mia999 on via web

• Physics
For 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...

Asked by fatukumar on via web

• Physics
The 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...

Asked by lkehoe on via web

• Physics
Using 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...

Asked by lkehoe on via web

• Physics
The 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...

Asked by lkehoe on via web

• Physics
Here 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...

Asked by crowfoot on via web

• Physics
Using 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 =...

Asked by moonlight55555 on via web

• Physics
Here 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...

Asked by tokillamockingbird123 on via web

• Physics
according 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...

Asked by astrosonuthird on via web

• Physics
While 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...

Asked by priya-varshney on via web

• Physics

Asked by astrosonuthird on via web

• Physics
An 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...

Asked by lkehoe on via web

• Physics
The 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...

Asked by lckempenaar on via web

• Physics
A 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...

Asked by kamrulhasan on via web

• Physics
Impulse 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...

Asked by meggym on via web

• Physics
Here 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 =...

Asked by lkehoe on via web

• Physics
Actually, 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....

Asked by sanjeevsahaji on via web

• Physics
This uses unit-analysis, 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)...

Asked by jacobsen13 on via web

• Physics
I 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...

Asked by makiphobe on via web

• Physics
Error!!! Sympathetic!!! The Bottle consists.......

Asked by ttkjemsj on via web

• Physics
It 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...

Asked by angel-s0ufi on via web

• Physics
Some 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...

Asked by loraaa on via web

• Physics
When 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...

Asked by yahhhh on via web