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ratelena [41]
3 years ago
6

Which statement about stage 3 NREM is accurate?

Physics
1 answer:
cestrela7 [59]3 years ago
8 0

Answer:

hope

that helps

Explanation:

D. The sleeper's heart rate, blood pressure, and breathing rate drop to their lowest levels.

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2 Select the correct answer. Javed suffers from a severe food allergy. Which device should Javed always carry? A. inhaler B. epi
Slav-nsk [51]

The best answer would be:

B. Epi pen

Here is more about it:

An epi pen injects epinephrine into the body to counteract the effects of an allergic reaction. Epinephrine helps narrow blood vessels and open up the airways. This can be used for food allergies, insect bites, and some other allergens. It is very effective and immediately works, but it is short-lived, so seeking medical attention after is still needed.

4 0
3 years ago
The image produced by a convex lens depends upon ____.
Karolina [17]
I recently did this topic in science class - the answer is A ;)
7 0
3 years ago
Read 2 more answers
Two wheels have the same mass and radius of 4.1 kg and 0.37 m, respectively. one has (a) the shape of a hoop and the other (b) t
snow_lady [41]
<span>Since the wheel start from rest. angular acceleration, θ=1/2αt² 14=1/2α x 8.7² α= 0.3699 rad/s² moment of inertia of loop= mr²= 4.1x0.37=1.517 kgm² torque=T= lα T= 0.5611Nm= 0.56Nm to significant figure Disc moment of inertia of disc= 1/2mr² Required torque value= 0.28Nm So, I= 1/2X 4.1X 0.37²= 0.280 Kgm² T= Iα = 0.280 X 0.3699= 0.10 to two significant figure</span>
3 0
3 years ago
Calculate the number of coulombs per second if the area is 4cm, recombination rate of hole is 1000 cm/s and the differential len
musickatia [10]

Answer:

number of coulombs =  1.28 × 10^{-22}

option b is correct

Explanation:

Given data

area A = 4cm

rate of hole r = 1000 cm/s

length L = 2mm

to find out

number of coulombs

solution

we will apply here  number of coulombs formula that is

number of coulombs =  e×A×L× r

put here value e = 1.6 × 10^{-19}  coulombs

and A = 4 × 10^{-4} mand length = 2 × 10^{-3} m

number of coulombs =  1.6 × 10^{-19} × 4 × 10^{-4}  × 2 × 10^{-3} × 1000

number of coulombs =  1.28 × 10^{-22}

so option b is correct

3 0
3 years ago
To test a slide at an amusement park, a block of wood with mass 3.00 kgkg is released at the top of the slide and slides down to
dem82 [27]

Answer:

511.1 J

Explanation:

We are given that

Mass of wood block=m=3 kg

Vertical distance,h=23 m

Horizontal distance =x=30 m

Distance traveled in downward direction y=40 m

Initial velocity,u=0

y=ut+\frac{1}{2} gt^2

Where g=9.8 m/s^2

40=0+\frac{1}{2}(9.8)t^2=4.9t^2

t^2=\frac{40}{4.9}

t=\sqrt{\frac{40}{4.9}}=2.86 s

x=v_x\times t

30=v_x(2.86)

v=v_x=\frac{30}{2.86}=10.49 m/s

By work energy theorem

Change in kinetic energy=Work done= mgh-W

\frac{1}{2}mv^2-\frac{1}{2}mu^2=3\times 9.8\times 23-W

\frac{1}{2}(3)(10.49)^2-0=676.2-W

W=676.2-\frac{1}{2}(3)(10.49)^2=511.1 J

Hence, the work done due to friction on the block as it slides down the ramp=511.1 J

6 0
3 years ago
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