1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zigmanuir [339]
3 years ago
6

A book is resting on the table. Forces are exerted _____.

Physics
2 answers:
LekaFEV [45]3 years ago
6 0

Answer:

downward by the book

Explanation:

because of gravity

IRINA_888 [86]3 years ago
4 0

Answer:

up

Explanation:

it feels right

You might be interested in
Pls help‼️Help me with these questions! :/
TiliK225 [7]

Answer:

No number answer; don't want to pull out a calculator lol

Explanation:

Capacitors are added in parallel; opposite of resistors.

So for 9, add 10 and 2.5 then do ((1/12.5)+(1/.3))^-1.

For 10, add 0.75 and 15 first, then the rest is the same idea as 9.

4 0
3 years ago
A fairgrounds ride spins its occupants inside a flying saucer-shaped container. If the horizontal circular path the riders follo
cestrela7 [59]

Answer:

13.37 rev/min

Explanation:

acceleration due to gravity (g) = 9.8 m/s², centripetal acceleration (a_c) = 1.8 * g = 1.8 * 9.8 m/s² = 17.64 m/s².

r = 9 m

Centripetal acceleration (a_c) is given by:

a_c=\frac{v^2}{r} \\\\v=\sqrt{a_c*r} \\\\v=\sqrt{17.64\ m/s^2*9\ m}\\\\v=12.6\ m/s

The velocity (v) is given by:

v = ωr;  where ω is the angular velocity

Hence:

ω = v/r = 12.6 / 9

ω = 1.4 rad/s

ω = 2πN

N = ω/2π = 1.4 / 2π

N = 0.2228 rev/s

N = 13.37 rev/min

4 0
2 years ago
A plane travels 1743 KM in 2 hours 30 minutes. How fast was the plane traveling?
Advocard [28]

Answer:

v=697.2km/h

Explanation:

Hello.

In this case, since the velocity is computed via the division of the distance traveled by the elapsed time:

V=\frac{d}{t}

The distance is clearly 1743 km and the time is:

t=2h+30min*\frac{1h}{60min} =2.5h

Thus, the velocity turns out:

v=\frac{1743km}{2.5h}\\ \\v=697.2km/h

Which is a typical velocity for a plane to allow it be stable when flying.

Best regards.

5 0
3 years ago
IF YOU ANSWER ALL I WILL GIVE A BRAINLIEST... ONLY 3 QUESTIONS!
Law Incorporation [45]

Answer: a) electromagnetic waves

Explanation:

An electromagnetic wave begins when an electrically charged particle vibrates. This causes a vibrating electric field, which in turn creates a vibrating magnetic field. The two vibrating fields together form an electromagnetic wave.

Hope this helps:)

6 0
3 years ago
How much time does it take a person to walk 8
Alex

Answer:

2 hours

Explanation:

8 0
2 years ago
Other questions:
  • Why does water stay in a straw if you put your finger over it?
    15·1 answer
  • Which is a chemical property of iron?
    9·2 answers
  • Normally, atoms are electrically neutral because there are__.
    10·1 answer
  • Consider an electron that is 10−10 m from an alpha particle
    6·1 answer
  • A thin, flat washer is a disk with an outer diameter of 14 cm and a hole in the center with a diameter of 7 cm. The washer has a
    9·1 answer
  • Lorenzo is making a prediction. “I learned that nonmetals increase in reactivity when moving from left to right. So I predict th
    12·2 answers
  • What force (in N) must be exerted on the master cylinder of a hydraulic lift to support the weight of a 2400 kg car (a large car
    5·1 answer
  • Do all solids have any similar properties
    14·1 answer
  • Entropy is the amount of heat a system releases. true or false?​
    12·2 answers
  • 12. Suppose a person is covered head to foot by wool clothing with average thickness of 2.00 cm and is transferring energy by co
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!