Answer:
Generally given that the electric field is negative it mean that its direction is opposite to that of the force
Explanation:
From the question we are told that
The charge on the small object is 
The force is 
Generally the magnitude of the electric field is mathematically represented as
=> 
=>
Generally given that the electric field is negative it mean that its direction is opposite to that of the force
The answer is only A.
Speed is distance traveled over time.
Velocity can be zero if the object has zero displacement so if it returns to it's staring position.
Acceleration can be zero if it's moving at a constant velocity.
Answer:
Explanation:
given,
initial speed of the car, v₁ = 17 m/s
final speed of the car, v₂ = 0 m/s
car stops in time = 3 s
we need to calculate average speed
average speed of the car during interval of 3 s is 8.5 m/s
Answer:
-47 °C
Explanation:
Speed of sound in air at sea level is:
v = 331 m/s + 0.6 m/s/°C T
where T is the temperature in Celsius.
The speed of sound is also the frequency times the wavelength:
v = fλ
Therefore:
fλ = 331 m/s + 0.6 m/s/°C T
(658 Hz) (0.46 m) = 331 m/s + 0.6 m/s/°C T
302.68 m/s = 331 m/s + 0.6 m/s/°C T
-28.32 m/s = 0.6 m/s/°C T
T = -47.2 °C
Rounding to two significant figures, the temperature is -47 °C.
Answer:
they are constantly bouncing everywhere and creating preasure
Explanation:
