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
jasenka [17]
2 years ago
10

Choose all the answers that apply.

Physics
1 answer:
spin [16.1K]2 years ago
3 0

Answer:

B and C?

Explanation:

You might be interested in
For an object to be in static equilibrium, the net force must be equal to zero and and The center of gravity must be above the s
iren [92.7K]

Answer:

The normal force must equal the weight.

8 0
3 years ago
I need help please...
Natalka [10]
No cluuuueee :/ sowwwwyyy but good luck
6 0
2 years ago
Read 2 more answers
Derive an expression for the gravitational potential energy U(r) of the object-earth system as a function of the object's distan
Drupady [299]

Answer:

U(r)=-\frac{Gm_Emr^2}{2R^3_E}

Explanation:

We are given that

Gravitational force=F_g=\frac{Gm_Emr}{R^3_E}

r=0,U(0)=0

We know that

Gravitational potential energy=-\int F_gdr

U(r)=-\int\frac{Gm_Emr}{R^3_E}dr

U(r)=-\frac{Gm_Em}{R^3_E}\times \frac{r^2}{2}+C

Substitute r=0 ,U(0)=0

0=0+C

C=0

Substitute the value

U(r)=-\frac{Gm_Emr^2}{2R^3_E}

4 0
3 years ago
4.Give at least three examples from everyday life where an inclined plane is used to reduce the effort force needed to accomplis
olga nikolaevna [1]
1. A wheelchair ramp. Instead of using lifting force on the wheelchair, You use push or pull force on it.

2. A slide. Instead of throwing down an item, It uses gravitational potential energy make an object "move" down the slide.

3.A screw. It's reducing the force by twisting the screw out of something instead of pulling it out. (Sorry about my bad grammar).
5 0
3 years ago
A rat runs 2m right, turns around and runs 3m left. Then goes 2m right. What is its displacement?
geniusboy [140]

Answer:

Explanation:

I think this answer would be 1m to the left.

7 0
2 years ago
Other questions:
  • Alisha uses wire to connect a battery, a lightbulb, and a switch, but the bulb does not light up even though the switch is in th
    15·1 answer
  • Any help please, physics is not my strong suit?
    8·2 answers
  • PLEASE HELPPP FASTTTTTTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!!!!!!!In a paragraph of no less than five sentences, explain how these Russ
    12·1 answer
  • Which of the following are capital cities in the Caribbean? Lima La Habana San Juan San Jos Guinea Ecuatorial
    11·1 answer
  • Which home heating system is the most common in the united states?
    9·1 answer
  • A boxer punches a sheet of paper in midair and brings it from rest up to a speed of 30 m/s in 0.060 s .
    8·1 answer
  • Sound travels fastest through
    9·1 answer
  • You do 45.0 joules of work and 3.00 seconds how much power do you use​
    7·1 answer
  • Which best describes the runners
    6·1 answer
  • 2. A book with a mass of 2 Kg is resting on a shelf 1.5 m off the floor. How much gravitational
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!