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3 years ago

If you are given force and time, you can determine power if you can know

2 answers:

8 0

The answer would be A, because power is defined as the rate of doing work. Hence power = work / time then you obtain watts. Work is the product of force and displacement (distance). Hence in formula, w = F x s.

Mamont248 [21]3 years ago

4 0

Answer:

joules/energy.

Explanation:

power is defined as the rate of work. Hence power=work/time, then you obtain Watts.

Work is the product of force and displacement.

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You are attending the State Fair, and at the midway games, you come across the one rare, crooked carnival game. In this game, ba

Anettt [7]

Answer:

Explanation:

At the top , horizontal displacement = 2 m .

vertical displacement = 1.5 m .

Let time to reach the hole be t . Let the ball is launched at angle θ with horizontal with velocity u .

ucosθ x t = 2

from v = u - 2gt

0 = usinθ - 2gt

usinθ = 2gt

v² = u² - 2gh

u²sin²θ = 2 g h

u²sin²θ = 2 x 9.8 x 1.5

usinθ = 5.42

usinθ = 2gt

2gt = 5.42

t = .2765 s

ucosθ x t = 2

ucosθ x .2765 = 2

ucosθ = 7.23

usinθ = 5.42

dividing ,

Tanθ = .75

θ = 37°

usin37 = 5.42

u = 9.03 m /s

4 0

3 years ago

1. In a certain semiconducting material the charge carriers each have a charge of 1.6 x 10-19 C. How many are entering the semic

Gennadij [26K]

Answer:

The number of charges is 1.25 × 10¹⁰

Explanation:

Current is the amount of charge flowing through a conductor per second. The formula for current (I) is given as:

I = Q/t

Where Q is the charge flowing in coulombs and t is the time taken in seconds.

Given that I = 2.0 nA = 2 × 10⁻⁹ A and t = 1 sec

I = Q / t

Q = It = 2 × 10⁻⁹ × 1 = 2 × 10⁻⁹ C

Since each charge = 1.6 x 10⁻¹⁹ C, therefore:

The number of charges = 2 × 10⁻⁹ C / 1.6 x 10⁻¹⁹ C = 1.25 × 10¹⁰

5 0

3 years ago

Write some interesting facts about isaac newton

Hatshy [7]

Sir Isaac Newton was an English Mathematician,physicist,astronomer,theologian and author who is widely recognized as one of the most influential scientist of all time because of his discovery of gravity(force that attracts a body toward center of earth).

8 0

3 years ago

Suppose you have a total charge qtot that you can split in any manner. Once split, the separation distance is fixed. How do you

dybincka [34]

Answer:

Answer is explained in the explanation section below.

Explanation:

Solution:

We know from the Coulomb's Law that, Coulomb's force is directly proportional to the product of two charges q1 and q2 and inversely proportional to the square of the radius between them.

So,

F = $\frac{Kq1q2}{r^{2} }$

Now, we are asked to get the greatest force. So, in order to do that, product of the charges must be greatest because the force and product of charges are directly proportional.

Let's suppose, q1 = q

So,

if q1 = q

then

q2 = Q-q

Product of Charges = q1 x q2

Now, it is:

Product of Charges = q x (Q-q)

So,

Product of Charges = qQ - $q^{2}$