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Andreas93 [3]
3 years ago
8

I need help on this science

Physics
1 answer:
Serga [27]3 years ago
8 0
Ok ok ok ok ok ok ok ok ok
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An object is placed at a known distance in front of a mirror whose focal length is also known. You apply the mirror equation and
Licemer1 [7]

Answer:

the image is behind the mirror, so the image is virtual and upright.

Explanation:

6 0
4 years ago
A square 1300-turn coil with the area of 0.2 m2 is situated in the xy-plane in a region where the magnetic field is (50k) μT. Wh
givi [52]

Answer:

e = 65 mA

Explanation:

given,

number of turn = 1300

Area = 0.2 m²

B = 50 x 10⁻⁶T

t = 0.2 s

coil rotate in x-z plane

θ = 90°  to θ = 0°

maximum induced emf

e = -\dfrac{BAn(cos \theta_f - cos\theta_i)}{\Delta t}

e = -\dfrac{1300 \times 0.2 \times 50\times 10^{-6}(cos 90^0- cos0^0)}{0.2}

e =0.065

e = 65 mA

7 0
4 years ago
10. Calculate the kinetic energy of a running back that has a mass of 80 kg and
EastWind [94]

Answer:

The answer is

<h2>2560 J</h2>

Explanation:

The kinetic energy of an object given it's mass and velocity can be found by using the formula

KE =  \frac{1}{2} m {v}^{2}

where

m is the mass

v is the velocity

From the question

m = 80 kg

v = 8 m/s

The kinetic energy is

KE =  \frac{1}{2}  \times 80 \times  {8}^{2}  \\  = 40 \times 64

We have the final answer as

<h3>2560 J</h3>

Hope this helps you

5 0
3 years ago
Calculate the centripetal force (in N) on the end of a 44 m (radius) wind turbine blade that is rotating at 0.7 rev/s. Assume th
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4 0
3 years ago
Read 2 more answers
What is element ratio?
kenny6666 [7]

Answer:

A ratio is a way to compare quantities of things.

Explanation:

by dividing the number of moles of each by the smallest number of moles.

3 0
3 years ago
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