All categories

2 years ago

Guinea pigs have a gene that codes for black or brown fur. The

Physics

1 answer:

Ymorist [56]2 years ago

5 0

Answer:

B) Bb × Bb I think I can't promise that's right

You might be interested in

Find your mass if a scale on earth reads 650 N when you stand on it.

dezoksy [38]

Weight = (mass) x (acceleration of gravity) .

On Earth, acceleration of gravity is 9.8 m/s² (rounded) .

650 N = (mass) x (9.8 m/s²)

Divide each side by (9.8 m/s²): 650 N / 9.8 m/s² = mass

Mass = 66.3 kilograms (rounded)

7 0

3 years ago

An object is projected horizontally at 14.1 m/s from the top of a 195.0 meter cliff.

Roman55 [17]

What does a physical map show?

the names of countries, states, and cities

the history of an area

the geographical features of an area

the rest stops and restaurants in an area

7 0

2 years ago

A coin of mass m rests on a turntable a distance r from the axis of rotation. The turntable rotates with a frequency of f. What

Crank

Answer:

$\mu = \frac{r (2\pi f)^{2}}{g}$

Explanation:

$N$ = normal force acting on the coin

Normal force in the upward direction balances the weight of the coin, hence

$N = mg$

$f$ = frequency of rotation

Angular velocity of turntable is hence given as

$w = 2\pi f$

$r$ = distance from the axis of rotation

$\mu$ = minimum coefficient of static friction

static frictional force is given as

$f = \mu N\\f = \mu mg$

The static frictional force provides the necessary centripetal force , hence

Centripetal force = Static frictional force

$m r w^{2} = \mu mg\\r w^{2} = \mu g\\\\\mu = \frac{r w^{2}}{g} \\\mu = \frac{r (2\pi f)^{2}}{g}$

3 0

3 years ago

a mass on a spring vibrates in simple harmonic motion at an amplitude of 8.0 cm. if the mass of the object is 0.20kg and the spr

Reil [10]

Answer:

4.06 Hz

Explanation:

For simple harmonic motion, frequency is given by

$f=\frac {1}{2\pi}\times \sqrt{\frac {k}{m}}$ where k is spring constant and m is the mass of the object.

Substituting 0.2 Kg for mass and 130 N/m for k then

$f=\frac {1}{2\pi}\times \sqrt{\frac {130}{0.2}}=4.057670803\\f\approx 4.06 Hz$

5 0

2 years ago

Fred has a very detailed model of the solar system where each planet is made out of granite rock. Since his little sister really

eimsori [14]

C or "Density" The granite rock has a much higher density than the Styrofoam.

3 0

2 years ago

Read 2 more answers