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How can you find the direction of particle at a given time if the particle is moving in circle?
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What is a fast moving electron given off by a nucleus during radioactive decay and has a negative chare?
its called a beta particle, but its an electron
Explain the difference between velocity and speed?
they are different words with the same meaning.
Two identical charged particles moving with same speed enter a region of uniform magnetic field If one of these enters normal to the field direction and the other enters along a direction at 30 with?
So the forces acting on these charges have to be compared. Is it so? The famous formula meant to know about the force acting on a moving charged particle entering into a magnetic field is given as F = B q v sin@ Here @ is the angle inclined by the moving particle with the magnetic field. In the first case @ = 90 deg. As sin90 = 1 the force is Bqv. In second case @ = 30 deg. As sin 30 = 1/2 the force is 1/2 Bqv. Hence the force on the latter will be half of that on the earlier one.
Does a magnetic field exert any pressure on a charge moving perpendicular to its direction?
Only moving charges experience force in a magnetic field. i.e.,on moving ,a charge q,with velocity v ,experiences a force in the presence of electric field(E) and magnetic field (B). It can be represented as F= q(v x B)~(Ftotal=Felectricfield + Fmagneticfield ) Force acts perpendicular to both magnetic field and velocity of the electron. Its direction is given by right hand thumb rule or screw rule. The magnetic force is zero if charge is not moving, since lvl=0.
The name given to the atomic particle found outside the nucleus of an atom?
you
Is a delta particle a fast moving electron given off by a nucleus during radioactive decay?
No, a delta particle is not a fast moving electron given off by a nucleus during radioactive decay. The electron described here is a beta particle, and specifically a beta minus particle. It is given off in (no surprise) beta minus decay. A link to a related question can be found below.
What is speed is given direction?
The amount of speed in a given direction is the 'component' of speed in that direction. The total amount of speed AND the direction of the total speed is the 'velocity' of the moving object.
Why are sine functions such good models for repetitive behavior?
Repetitive behavior can be described by a point moving in a circle. The time of repetition is equivalent to time taken by that particle to complete that circle. When the point moves in a circle, its angle changes from 0 to 360 degrees; all of these values can be given by a sine function or a cosine function.
What is the rate at which an object is moving at a given instant called?
speed if no direction is needed velocity if direction is needed
What is formula calculating velocity?
Veloicty is distance divided by time, for a object moving in a given direction. If direction is not given, then it is speed.
What is speed in given direction?
The amount of speed in a given direction is the 'component' of speed in that direction. The total amount of speed AND the direction of the total speed is the 'velocity' of the moving object.
How is the position of a particle moving along a straight line described by a number?
The position of the particle can be given by a number representing the distance of the particle from some fixed reference point (called the origin). This is not enough to describe the motion of the particle since for that you also required the time (or times) at which the particle is at any particular point.
The magnitude of the acceleration of an object moving in a circle at constant speed is?
Since no values are given, the answer must be a general one. A particle in circular motion undergoes centripetalacceleration. Inertial motion is straight line motion. Any change in motion (including direction) requires positive or negative acceleration. In order to move along a circular (or any curved) path, a particle's direction of motion is in a constant state of diversion from straight line inertial motion, so it moves under a contant state of acceleration.
What is a fast moving electron given off by a nucleus during radioactive decay and has a negative chare?
its called a beta particle, but its an electron
Moving at constant velocity is also moving with constant speed?
Velocity is Speed in a given direction. Moving at constant velocity is equivalent to say moving with a constant speed in a specified direction. So, moving at constant velocity implicitly means moving with constant speed.
If you know that a moving object has a constant velocity you can predict correctly where it will be after a given amount of time. however if you know only that the object has a constant speed you cann?
For constant velocity,which means constant speed and constant direction, you predict where it will be after a given amount of time. For constant speed,which means you do not necessarily know direction, you cannot predict where it will be after a given amount of time, since direction can be changing. Speed is a scalar and velocity a vector.For example of a car is traveling in a circle you cannot tell where it will be in time unless you know the direction change and the radius of the circle for example. If a baseball is thrown to home plate by the pitcher at a speed of 90 mph, in a straight line, now you know speed and direction and if both constant then velocity is constant.
How does force influence motion?
Remember Newton's 2nd Law of Universal Dynamics. Force is directly proportional to the change in momentum(acceleration) . So a given force applied to a mass will change its velocity. Remember velocity is speed ( a scalar quantity) in a given direction. So an object moving at constant speed , but changing its direction ( going round in a circle /ellipse) is accelerating; its velocity is changing.
