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nirvana33 [79]
3 years ago
10

Niagara Falls is a set of very large waterfalls located on the border between New York and Ontario, Canada. Over 200,000 cubic f

eet of fast-moving waterfalls approximately 180 feet every second. Water at the top of the Falls possesses.
a. kinetic energy and gravitational potential energy.
b. only kinetic energy.
c. only gravitational potential energy.
d. neither gravitational potential energy nor kinetic energy.
Physics
2 answers:
PSYCHO15rus [73]3 years ago
8 0

Answer:

a) kinetic energy and gravitational potential energy

Explanation:

The water at the top of the fall possesses kinetic energy because the water is in motion, moving.

The water at the top also possess gravitational potential energy because it is falling under the influence of gravity. It is in a gravitational field.

krek1111 [17]3 years ago
5 0

Answer:

a. kinetic energy and gravitational potential energy.

Explanation:

It has kinetic energy because of its "fast-moving" water that is water in motion.

It has gravitational potential energy because of its height which is hundreds of feet

above the riverbed that is getting ready to fall down to, as soon as

it goes over the edge.

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A certain brand of hot dog cooker works by applying a potential difference of 120 V across opposite ends of a hot dog and allowi
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Answer: 43s

Explanation:

The stored energy across a plate can be measured by calculating the electric charge and the potential difference. Also, the quantity of electricity can be measured by multiplying the current in the circuit with the time taken.

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Energy, E = 59 kJ

Remember,

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Q = 491.67 C

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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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Answer:

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Torque, \tau=8\times 10^{-9}\ N-m

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

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\tau=qdE\ sin\theta

E=\dfrac{\tau}{qd\ sin\theta}

E=\dfrac{8\times 10^{-9}}{4.8\times 10^{-9}\times 0.003\ sin(36.4)}

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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