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
Effectus [21]
2 years ago
14

What is the mass of the rock?

Physics
1 answer:
kow [346]2 years ago
5 0

Answer:

sssssssssssssssssssssssssss

Explanation:ssssssssssssss

sssssssssssssssssssssssss

ssssssssssssssssssssssss

sssssssssssssssssssssss

ssssssssssssssssssssss

sssssssssssssssssssss

ssssssssssssssssssss

sssssssssssssssssss

ssssssssssssssssss

sssssssssssssssss

ssssssssssssssss

sssssssssssssss

ssssssssssssss

sssssssssssss

ssssssssssss

sssssssssss

ssssssssss

sssssssss

ssssssss

sssssss

ssssss

sssss

ssss

sss

ss

4.6 i think

You might be interested in
A space station in the shape of a 100 m-diameter (50m radius) wheel is spinning so as to impart a linear tangential speed of 22.
zalisa [80]

Answer:

correct option is b. 31.3 m/s

Explanation:

given data

artificial gravity a1 = 1 g

artificial gravity a2 = 2 g

diameter = 100 m

radius  r= 50 m

speed v1 = 22.1 m/s

solution

As acceleration is  ∝ v²

so we can say

\frac{a2}{a1} = \frac{v2}{v1}    .....................1

put here value

\frac{2}{1} = \frac{v2}{22.1}  

solve it

v2 = \sqrt{2 } × 22.1

v2 = 31.25 m/s

so correct option is b. 31.3 m/s

4 0
3 years ago
is the rate at which ____________________ changes. (Velocity or Acceleration, velocity or acceleration)
Troyanec [42]

<u>Acceleration</u> is the rate at which <u>velocity</u> changes.

8 0
2 years ago
How many types of quarks are there?<br> a. 2<br> b. 4<br> c. 6<br> d. 8
Nostrana [21]
There are 6 types of quarks.

Answer: C. 6
8 0
3 years ago
Read 2 more answers
Determine the angular speed, in rad/s of:
ryzh [129]

Answer:

Explanation:

A. The earth about its axis:

The earth makes one revolution in 24 hours. to know the number of revolutions per second it makes, we need to convert hours to seconds and the revolution to rad.

\frac{1 rev}{24hours}\times \frac{1 hr}{3600s}\times \frac{2\pi}{1}= 7.27 \times10^-5 rad/s

B. The minute hand of the clock makes one revolution in 60 minutes

To convert this to rad per second, we have

\frac{1 rev}{60mins}\times \frac{1 min}{60s}\times \frac{2\pi}{1}= 1.745 \times10^-3rad/s

C. The hour hand of  a clock completes one revolution in 12 hours

\frac{1 rev}{12hours}\times \frac{1 hr}{3600s}\times \frac{2\pi}{1}= 1.454 \times10^-4 rad/s

D. an egg beater turning at 300 rpm.

\frac{300 rev}{1minute}\times \frac{1 min}{60s}\times \frac{2\pi}{1}= 7.27 \times10^-5 rad/s=0.0218rad/s

6 0
2 years ago
A boy standing on a bridge above a river throws stone A vertically upward with an initial velocity =15m/s.2 seconds later he dro
Anastaziya [24]

I'm not sure if this is correct but it's what I'll do

This is free-fall problem.
Stone A is thrown upward, at the point it falls down to the place where it was thrown, the velocity is -15m/s.

Now I choose the bridge is the origin. From the bridge, stone A and B fall the same distance which means Ya = Yb ( vertical distance )

Ya = Vo(t + 2) + 1/2a(t+2)^2
= -15(t + 2) + 1/2(9.8)(t^2 + 4t + 4)
= -15t - 30 + 4.5(t^2 + 4t + 4)
= -15t - 30 + 4.5t^2 + 18t + 18
= 4.5t^2 +3t - 12

Yb = Vo(t) + 1/2a(t)^2
= 0 + 4.5t^2

4.5t^2 = 4.5t^2 +3t - 12
0 = 3t - 12
4 = t

Time for Stone B is 4s
Time for Stone A is 6s

7 0
3 years ago
Other questions:
  • Which description best defines blastocyst?
    8·2 answers
  • An oxygen atom at a particular site within a DNA molecule can be made to execute simple harmonic motion when illuminated by infr
    5·1 answer
  • A large box of mass M is moving on a horizontal surface at speed v0. A small box of mass m sits on top of the large box. The coe
    13·1 answer
  • Gauss’ law: a. Relates the surface charge density to the electric field.b. Relates the electric field at points on a closed surf
    15·1 answer
  • Which part of the iceberg displaces water equal in weight to the buoyant force
    6·2 answers
  • A group of students gather for some fun during their summer break from school. Kendall and Jacoby have a water balloon fight dur
    10·1 answer
  • A passenger in a car moving at a 40 m/s is not moving when which frame reference is used?
    6·1 answer
  • The force exerted by gravity on 5kg=~ n
    13·1 answer
  • Two ice skaters are at rest, Abby
    5·2 answers
  • What is the mass of 2000 ml of an intravenous glucose solution with a density of 1.15 g/ml?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!