Which type of listening response includes the use of head nods, facial expressions, and short utterances such as "uh-huh" that s
1 answer:
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Answer:
The charge is moving with the velocity of .
Explanation:
Given that,
Charge
Angle = 35°
Magnetic field strength
Magnetic force
We need to calculate the velocity.
The Lorentz force exerted by the magnetic field on a moving charge.
The magnetic force is defined as:
Where,
F = Magnetic force
q = charge
B = Magnetic field strength
v = velocity
Put the value into the formula
Hence, The charge is moving with the velocity of .
Answer:
44 N/m
Explanation:
The extension, e, of the spring = 2.9 m - 1.4 m = 1.5 m
The work needed to stretch a spring by <em>e</em> is given by
where <em>k</em> is spring constant.
Using the appropriate values,
Answer:
The acceleration of the rocket is 10 m/s².
Explanation:
Let the acceleration of the rocket be m/s².
Given:
Mass of the rocket is,
Thrust force acting upward is,
Acceleration due to gravity is,
Now, force acting in the downward direction is due to the weight of the rocket and is given as:
Now, net force acting on the rocket in upward direction is given as:
Therefore, from Newton's second law, net force acting on the rocket is equal to the product of mass and acceleration.
Therefore, the acceleration of the rocket is 10 m/s².