What will be the result of sea level rising, causing the ocean to fill a glacially carved valley?

Vectors a and b have scalar product â6.00, and their vector product has magnitude +9.00. what is the angle between these two vec

salantis [7]

Answer:

Value of angle between vector a and b is $56.30^{\circ}$ .

Explanation:

Vectors a and b have scalar product 6.00

Let $\theta$ be the angle between a and b.

$\vec{a}.\vec{b} = 6$

ab cos $\theta$ = 6 ...(1)

Vectors a and b have magnitude of vector product 9.00

$\vec{a} \times\vec{b} = 9$

ab sin $\theta$ = 9 ...(2)

Dividing equation (2) by (1) we get

$\frac{ab sin \theta}{ab cos \theta} = \frac{9}{6}$

tan $\theta$ = 1.5

$\theta = tan ^{-1} (1.5)$

$\theta$ = $56.30^{\circ}$

Thus, value of angle between vector a and b is $56.30^{\circ}$ .

3 0

2 years ago

You are designing a generator with a maximum emf 8.0 V. If the generator coil has 200 turns and a cross-sectional area of 0.030

shutvik [7]

Answer:

7.1 Hz

Explanation:

In a generator, the maximum induced emf is given by

$\epsilon= 2\pi NAB f$

where

N is the number of turns in the coil

A is the area of the coil

B is the magnetic field strength

f is the frequency

In this problem, we have

N = 200

$A=0.030 m^2$

$\epsilon=8.0 V$

B = 0.030 T

So we can re-arrange the equation to find the frequency of the generator:

$f=\frac{\epsilon}{2\pi NAB}=\frac{8.0 V}{2\pi (200)(0.030 m^2)(0.030 T)}=7.1 Hz$

4 0

2 years ago

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Is a dimond a pure substance? yes or no

Evgen [1.6K]

Yes A diamond* is a pure substance

8 0

2 years ago

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Denise is conducting a physics experiment to measure the acceleration of a falling object when it slows down and comes to a stop

anastassius [24]

To calculate the acceleration of the wooden block, we use the expression F=ma where F is the force applied, m is the mass of the object and a is the acceleration. We calculate as follows:

F = ma
4.9 = 0.5a
a = 9.8

Hope this answers the question. Have a nice day.

4 0

2 years ago

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Complete the statements using data from Table A of your Student Guide. The speed of the cart after 8 seconds of Low fan speed is

finlep [7]

Answer:

The speed of the cart after 8 seconds of Low fan speed is 72.0 cm/s

The speed of the cart after 3 seconds of Medium fan speed is 36.0 cm/s

The speed of the cart after 6 seconds of High fan speed is 96.0 cm/s

Explanation:

took the test on edgenuity

4 0

2 years ago

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