A constant magnetic field can be used to produce an electric current. True or False?

1 What conclusion can you draw about semicircular canals from their name ? A Their shape B Their size Their location in your bod

oee [108]

Answer:

A. Their shape

Explanation:

The name clearly shows that the shape of these canals are semi-circular. The semi-circular canals consist of three tubes filled with fluid and located in the inner ear. They help to maintain balance and transmit impulses through the movement of the fluids. The impulses sent through these fluids are sent to the brain for interpretation.

The function of the canals are not indicated by the name, rather the shape is hinted through the name.

7 0

3 years ago

An arrow is shot vertically upward at a rate of 250ft/s. Use the projectile formula h=−16t2+v0t to determine at what time(s), in

SIZIF [17.4K]

Answer:

The arrow is at a height of 500 feet at time t = 2.35 seconds.

Explanation:

It is given that,

An arrow is shot vertically upward at a rate of 250 ft/s, v₀ = 250 ft/s

The projectile formula is given by :

$h=-16t^2+v_ot$

We need to find the time(s), in seconds, the arrow is at a height of 500 ft. So,

$-16t^2+250t=500$

On solving the above quadratic equation, we get the value of t as, t = 2.35 seconds

So, the arrow is at a height of 500 feet at time t = 2.35 seconds. Hence, this is the required solution.

6 0

4 years ago

Read 2 more answers

Expressing Experimental Error If the accepted value of π is 3.1416, what are the fractional error and the percent error of the e

LUCKY_DIMON [66]

Answer:

1) Δx = 0.16 m / s² , Δx = 9.72-9.8 = 0.08 m / s²

2) e% = 1.63% , , e% = 0.816%

3) 1e% = 0.04

Explanation:

The fractional error in a quantity is the absolute error between the accepted value of the quantity and the percentage error is the fractional error per 100

In this case, it is not indicated which is the measured experimental value of pi, suppose that a value of 3.142 is measured

fractional error

e = (ax - ax_average) / x_average

e = (3.142 - 3.1416) / 3.1416

e = 1.27 10⁻⁴

the percentage error is

% = e 100

% = 1.27 10-4 100

% = 1.27 10⁻²%

1) Δx = 9.96-9.8 = 0.16 m / s²

Δx = 9.72-9.8 = 0.08 m / s²

2) the percentage difference

x = 9.96 m / s2

e% = (9.96 - 9.80) / 9.80 100

e% = 1.63%

x = 9.72 m / s2

e% = (9.72 -9.80) / 9.80 100

e% = 0.816%

3) the mean value is

x_average = (x1 + x2) / 2

x_average = (9.96 + 9.72) / 2

x_average = 9.84 m / s2

e% = (9.84 - 9.80) / 9.80 100

1e% = 0.04

7 0

3 years ago

Is a whelk a carnivore?

arlik [135]

Herbivore: A animal/human that eats plant only.
Carnivore: A animal/human that eats meat.
Whelk is a name that implies to a variety of sea-snails / A large sea-snail. whelks are carnivores , they typically feed on worms ,mussels and other crustaceans.

7 0

3 years ago

The flywheel of a steam engine runs with a constant angular velocity of 190 rev/min. When steam is shut off, the friction of the

Ivanshal [37]

Answer:

(a) $\alpha = - 1.32\ rev/m^{2}$