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2 years ago

This diagram shows a heating curve for water.

Physics

1 answer:

Bess [88]2 years ago

6 0

Answer:

it is B

Explanation:

Because I agree with her and also got 100

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The two conducting rails in the drawing are tilted upwards so they each make an angle of 30.0° with respect to the ground. The v

dolphi86 [110]

Answer:

The current flows through the rod is 14.9 A.

Explanation:

Given that,

Magnetic field = 0.045 T

Mass of aluminum rod = 0.19 kg

Length = 1.6 m

Angle = 30.0°

We need to calculate the force

Using resolving force

$F\cos\theta=mg\sin\theta$

$F=mg\tan\theta$

Put the value into the formula

$F=0.19\times9.8\times\tan30$

$F=1.075\ N$

We need to calculate the current flows through the rod

Using formula of magnetic force

$F=iLB$

$i=\dfrac{F}{LB}$

Put the value into the formula

$i=\dfrac{1.075}{1.6\times0.045}$

$i=14.9\ A$

Hence, The current flows through the rod is 14.9 A.

8 0

2 years ago

The length is a fundamental quantity why

kupik [55]

There’s no picture and what’s the length?

5 0

2 years ago

Bob rides his bike with a constant speed of 10 miles per hour. How long will he take to travel a distance of 15 miles?

ICE Princess25 [194]

${\underline{\pink{\textsf{\textbf{ Answer : }}}}}$

➡ 150hrs.

${\underline{\pink{\textsf{\textbf{Explanation : }}}}}$

➡ Time = distance × speed

➡ Time = 15*10

➡ Time = 150hrs ans.

7 0

2 years ago

During spring semester at MIT, residents of the parallel buildings of the East Campus dorms battle one another with large catapu

natali 33 [55]

Answer:

110.7 J

Explanation:

Hooke's law is represented by the formula:

F = ke where F is the force in Newton, K is force constant and e is extension in m

work done = 1/2ke² = 1/2 K ( e² - e₀²) and e₀ is the extension at relaxed length

e₀ =0

work done = 0.5 × 82N/m × (2.70 m)² = 110.7 J

4 0

3 years ago

A 426.7 Hz tuning fork is resonating in a closed tube on a warm day when the speed of sound is 346 m/s. What is the length of th

Arturiano [62]

Answer:

The length of the closed tube is<u> </u>

Explanation:

Formula used :

$Speed = wavelength\times frequency$

$v = \lambda \times \nu$

Speed = v = 346 m/s

$\nu = 426.7 Hz$

$346 = \lambda \times 426.7$

$\lambda = \frac{326}{426.7}$

wavelength = 0.81 m

5 0

3 years ago