A cosmic ray is moving through empty space at constant velocity. Which of these statements is...
An object is moving forward with a constant velocity. Which statement about this object MUST be true? A. No forces are acting on the object. B. The net force on the object is in the forward direction. C. The acceleration of the object is in the forward direction. D. The net force on the object is zero.
A charge is moving through a velocity selector and is moving at a speed which is a factor of 4.2 times larger than the speed not to be deflected. At this speed, the magnitude of the magnetic force acting on it is 53 Newtons. What is the electric force acting on the charge in Newtons? Hint: think what is true about the magnetic and electric force when the charge is not deflected and how the relationship between magnetic force and...
A boy rides a bicycle at a constant velocity. Which of the following about the net force is true? A. There is a net force acting in the velocity direction B. There is a net force acting opposite to the velocity direction C. The net force is zero D. There is a net force acting perpendicularly to the velocity direction E. None from the above The Daily Post First with the News A passenger standing in a moving bus, facing...
True or False: For an object of mass m, moving at constant velocity implies a constant, nonzero, force acting on it. T True F False
Question 10 10.5 pts A charge is moving through a velocity selector and is moving at a speed which is a factor of 5.9 times larger than the speed not to be deflected. At this speed, the magnitude of the magnetic force acting on it is 46 Newtons. What is the electric force acting on the charge in Newtons? Hint: think what is true about the magnetic and electric force when the charge is not deflected and how the relationship...
For an object is moving with constant positive acceleration, which of the following statements is true? [Enter all correct answers eg. B or AC or ABC or ...] A) The position of the object must also be positive B) The velocity of the object must also be positive C) The velocity of the object must be zero D) The velocity of the object must be continually changing by the same amount each second E) None of the above Please explain.
2. An objec t is moving along a level surface with a constant velocity. The net force acting upon the object a. in the direction of motion b. opposite the direction of motion c. zero d.... none of these can be determined without further information. -9
Question 9 Earth's atmosphere is constantly bombarded by cosmic ray protons that originate somewhere in space. If the protons all passed through the atmosphere, each square meter of Earth's surface would intercept protons at the average rate of 1900 protons per second. ha would be the electric current nam ere ntercepte b a 2· km2 area on the planet? ' Number the tolerance is +/-590 Click if you would like to Show Work for this question: Units Open Show Work
understanding newton's law 1. An object cannot remain at rest unless which of the following holds? a. The net force acting on it is zero. b. The net force acting on it is constant and nonzero. c. There are no forces at all acting on it. d. There is only one force acting on it. which one is the answer? there can be more than one answer.... 2. If a block is moving to the left at a constant velocity,...
A rocket moves through empty space in a straight line with constant speed. It is far from the gravitational effect of any star or planet. Under these conditions, the force that must be applied to the rocket in order to sustain its motion is