Answer:
1 true, 2 true, 3 false, 4 false and 5 true
Explanation:
The magnetic field lines are used to graphically represent the magnetic field,
1 true. Because the field line is a graphic representation of the magnetic field
2 true leave one pole and reach another, there are no magnetic monopoles
3 false. The density of the lines gives an idea of the strength of the field, they are dense where the field is greater
4 false. The magnetic force is perpendicular to the field and therefore to the field lines
5 true. With the same experimental conditions, each field gives a unique force, if the lines cross different fields they would give the same force.
Answer:
Explanation:
Given
diameter
runner start at (x,y)=(48 m,0 m)
Runner runs around the circle 2.5 times
i.e. he runs two and half rounds
displacement of two rounds is zero so net displacement is of half round
displacement
After 2.5 round he will be towards west direction with respect to origin
so direction of displacement vector is west
Answer:
a) 1.67 m/s
b) 23kJ
Explanation:
We need to apply the linear momentum conservation formula, that states:
in this case:
the initital kinetic energy is:
and the final:
The energy lost is given by:
Answer:
Time taken for trip = 12.74 hour (Approx)
Explanation:
Given:
Distance of trip = 710-mi
Average speed for the trip = 55.7 mi/h
Find:
Time taken for trip = ?
Computation:
⇒ Time = Distance / Speed
⇒ Time taken for trip = Distance of trip / Average speed for the trip
⇒ Time taken for trip = 710-mi / 55.7 mi/h
⇒ Time taken for trip = 12.74 hour (Approx)
The answer that would best complete the given sentence above is cubic meter. The standard unit for measuring volume is the cubic meter (m^3). Volume is the quantity or the measurement of the amount of space that can be or is being occupied by matter. The metric unit for volume includes "liters" and "milliliters".