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
Brilliant_brown [7]
3 years ago
11

A student drops a rock from a bridge to the

Physics
1 answer:
qaws [65]3 years ago
6 0

Answer:

let us use the expression v = ./2gS in both the cases.

a) In the first case g = 9.8 m/s^2 and S = 10.3 m.

So v = 14.21 m/s

b) in the second case, g = 1.64 m/s^2 and S = 4.2 m = 3.71 m/s

00

Explanation:

You might be interested in
Suppose a 48-N sled is resting on packed snow. The coefficient of kinetic friction is 0.10. If a person weighing 660 N sits on t
Annette [7]

Assume the snow is uniform, and horizontal.

Given:

coefficient of kinetic friction = 0.10 = muK

weight of sled = 48 N

weight of rider = 660 N

normal force on of sled with rider = 48+660 N = 708 N = N

Force required to maintain a uniform speed

= coefficient of kinetic friction * normal force

= muK * N

= 0.10 * 708 N

=70.8 N


Note: it takes more than 70.8 N to start the sled in motion, because static friction is in general greater than kinetic friction.


8 0
3 years ago
You pull a block of mass m across across a frictionless table with a constant force. you also pull with an equal constant force
KiRa [710]
For any mass m:

a = F/m
v = √2*F/m*s = √2F/sm = k/√m
Momentum = mv = k√m
Energy = 1/ mv² = 1/2 m.k²/m = 1/2k²

SO
Both will have same energy
The larger mass will have greater momentum
4 0
4 years ago
H o m o zygous what does it mean
lord [1]

Answer:

two identical

Explanation:

6 0
3 years ago
A key issue in the post-Civil War era, the 14th Amendment guarantees which of the selections below under the laws for all citize
Semmy [17]

The correct answer is A: equal protection.

Further Explanation:

The fourteenth amendment was integral in granting equal rights to all citizens of the United States. This was not only for the citizens born in the country but naturalized citizens, former/freed slaves,  and all children born to people not naturalized Americans.

The fourteenth amendment timeline is listed below;

  • 06-08-1866 - By a vote of 33-11 the fourteenth amendment passed the Senate.
  • 06-13-1866 - By a vote of 120-32 the fourteenth amendment passed the House of Representatives.
  • 06-18-1866 -  United States Statutes at Large, entered the amendment into text.
  • 06-22-1866 - President Andrew Jackson announced that the the amendment was sent to be ratified by the states.
  • 07-28-1868 - A proclamation stating the ratification was certified.

Learn more about the 14th amendment at brainly.com/question/885222

#LearnwithBrainly

3 0
3 years ago
An analogy makes a comparison between objects based on their similar qualities. Cassidy wanted to create an analogy for the moti
user100 [1]
The three phases of matter differ in properties just because of the proximity of their molecules. The solid phase is the most organized of all. Its atoms are compactly arranged together and has the strongest intermolecular forces to keep them together. This is why they have a definite shape and volume. The liquid phase have molecules that are far away from each other, but not as far as that of the gas phase. The liquid and gas phases can be lumped into one group called fluids because they have the same property - they take the shape and volume of their container.

To make an analogy, see the attached picture for your reference.

8 0
4 years ago
Read 2 more answers
Other questions:
  • Which of the following statements is correct? Which of the following statements is correct? The more a muscle shortens, the more
    5·1 answer
  • A wave which needs a medium (solid, liquid, gas) in order to propagate itself.
    8·2 answers
  • A circuit consists of a series combination of 5.50 âkΩ and 5.00 âkΩ resistors connected across a 50.0-V battery having negligi
    7·1 answer
  • A simple pendulum consists of a ball connected to one end of a thin brass wire. The period of the pendulum "is 2.51 s". The temp
    13·1 answer
  • Earth orbits the sun once every 365.25 days. Find the average angular speed of earth about the sun. Answer in units of rad/s.
    12·1 answer
  • A proton is located at <3 x 10^-10> m. What is r, the vector from the origin to the location of the proton
    5·1 answer
  • Bromine, a liquid at room temperature, has a boiling point
    7·1 answer
  • Water exits straight down from a faucet with a 1.96-cm diameter at a speed of 0.55 m/s. The volume flow rate of the water as it
    15·1 answer
  • 0.125 C of charge flow out of a
    14·1 answer
  • Explain how sound is being produced from this 'Stomp' group.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!