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Veseljchak [2.6K]
2 years ago
6

Billy ran 800m in 240s. What is his speed? Round to two decimal places Your answer

Physics
2 answers:
Serjik [45]2 years ago
8 0

Answer:

Speed=3.33m/s

Explanation:

Distance(d)=800m\\Time(t)=240sec\\Now,\\Speed=\frac{Distance}{Time} \\\\Speed=\frac{800}{240} \\\\Speed=3.33m/s

Ilia_Sergeevich [38]2 years ago
4 0

<u>Answer</u>:

Speed = 3.33 m/s

<u>Explanation</u>:

Formula:

Speed = distance / time

<em>Here distance is 800 metres and time is 240 seconds</em>

<em>Using the formula:</em>

Speed = 800 / 240

Speed = 3.33 m/s

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An object has a mass of 120 kg on the moon. What is the force of gravity acting on the object on the moon?
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Weight = (mass) x (acceleration of gravity) .

Acceleration of gravity on the moon is 1.622 m/s² (rounded) .

Weight of the object = (120 kg) x (1.622 m/s²) = 194.6 Newtons.
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The nearest choice is  D). 196 N.

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When the bus is moving but begins to slow down, the man
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Charged particles q1=− 4.80 nC and q2=+ 4.80 nC are separated by distance 3.00 mm , forming an electric dipole. The charges are
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Distance between them, d = 3 mm = 0.003 m

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Angle between electric field and line connecting the charge, \theta=36.4^{\circ}

We need to find the torque exerted on the dipole. The torque experienced by the dipole in the electric field is given by :

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E = 936.19 N/C

So, the magnitude of electric field on the dipole is 936.19 N/C. Hence, this is the required solution.

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