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3 years ago

What is primary sex organs called

2 answers:

6 0

The primary sex organs for men are called testes and ovaries for the women. They produce sex cells called gametes and they secrete sex hormones.

atroni [7]3 years ago

5 0

They're called the <span>reproductive organs.

</span>For a male >> testicles or testes

For a female >> Ovaries

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A red car passes a blue car. Which is true?

Marrrta [24]

D. The red car is moving faster than the blue car

4 0

2 years ago

A truck has shock absorbers with a spring constant of 24200 N/m. When it hits a bump, it oscillates at 0.429 Hz. What is the mas

siniylev [52]

Answer:

3331.5 kg

Explanation:

Given:

Spring constant of the spring (k) = 24200 N/m

Frequency of oscillation (f) = 0.429 Hz

Let the mass be 'm' kg.

Now, we know that, a spring-mass system undergoes Simple Harmonic Motion (SHM). The frequency of oscillation of SHM is given as:

$f=\frac{1}{2\pi}\sqrt{\frac{k}{m}}$

Rewrite the above equation in terms of 'm'. This gives,

$2\pi f=\sqrt{\frac{k}{m}}\\\\Squaring\ both\ sides,\ we\ get:\\\\(2\pi f)^2=\frac{k}{m}\\\\m=\frac{k}{4\pi^2 f^2}$

Now, plug in the given values and solve for 'm'. This gives,

$m=\frac{24200\ N/m}{4\pi^2\times (0.429\ Hz)^2 }\\\\m=\frac{24200\ N/m}{4\pi^2\times 0.184\ Hz^2}\\\\m\approx3331.5\ kg$

Therefore, the mass of the truck is 3331.5 kg.

3 0

3 years ago

If water is at 50* C and energy is removed from the water until it is at - 10* C

aliya0001 [1]

Answer: B) Solid water to liquid water.

Explanation: This would be the melting of water or a transition of solid water to liquid water as energy is added.

3 0

2 years ago

A 6.50-g sample of copper metal at 25.0°C is heated by the addition of 84.0 J of energy. The final temperature of the copper is

Mekhanik [1.2K]

Answer:

Final temperature of the copper is 59 degrees Celsius

Explanation:

It is given that,

Mass of the sample of copper metal, m = 6.5 g

Initial temperature of the metal, $T_i=25^{\circ}\ C=298\ K$

Heat generated, Q = 84 J

The specific heat capacity of liquid water is 0.38 J/g-K

Let $T_f$ is the final temperature of the copper. It can be calculated using the definition of specific heat of any substance. It is given by :

$Q=mc\Delta T$

$Q=mc(T_f-T_i)$

$T_f=\dfrac{Q}{mc}+T_i$

$T_f=\dfrac{84}{6.5\times 0.38}+298$

$T_f=332\ K$

$T_f=59^{\circ}C$

So, the final temperature of the copper is 59 degrees Celsius. Hence, this is the required solution.

4 0

2 years ago

Jenna rides her scooter at a constant speed for 6 km. That part of her ride takes her 1 h. She then

AfilCa [17]

Answer:

5km/h

Explanation:

The equation for average speed is

Vavg = Δd/Δt

where Δd is distance and Δt is time

from what's given, we know she travelled 15km in total and the trip took 3 hours in total. We can now plug in the values into the equation

Vavg = 15/3

Vavg = 5km/h

4 0

2 years ago