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
kodGreya [7K]
3 years ago
6

An object is thrown off a cliff with a horizontal speed of 10 m/sec. After 3 seconds the object hits the ground. Find the height

of the cliff and the total horizontal distance traveled by the object.
Physics
1 answer:
Degger [83]3 years ago
4 0

Answer:

223

Explanation:

1243rrheggqfggqff

You might be interested in
Which of these materials is an example of an insulator?
geniusboy [140]
Rubber. The other three are metals, and therefore good conductors.
7 0
3 years ago
Metal sphere A has a charge of − Q . −Q. An identical metal sphere B has a charge of + 2 Q . +2Q. The magnitude of the electric
Goshia [24]

Complete Question:

Metal sphere A has a charge of − Q . −Q. An identical metal sphere B has a charge of + 2 Q . +2Q. The magnitude of the electric force on sphere B due to sphere A is F . F. The magnitude of the electric force on sphere A due to sphere B must be:

A. 2F

B. F/4

C. F/2

D. F

E. 4F

Answer:

D.

Explanation:

If both spheres can be treated as point charges, they must obey the Coulomb's law, that can be written as follows (in magnitude):

F =\frac{kQ*2Q}{r^{2} }

As it can be seen, this force is proportional to the product of the charges, so it must be the same for both charges.

As this force obeys also the Newton's 3rd Law, we conclude that the magnitude of the electric force on sphere A due to sphere B, must be equal to the the magnitude of the force on the sphere B due to the sphere A, i.e., just F.

3 0
3 years ago
A woman throws a javelin 35 mph at an angle 30 degrees from the ground. Neglecting wind resistance or the height the javelin thr
Anna71 [15]

Answer:

35 mph

Explanation:

The key of this problem lies in understanding the way that projectile motion works as we are told to neglect the height of the javelin thrower and wind resistance.

When the javelin is thown, its velocity will have two components: a x component and a y component. The only acceleration that will interact with the javelin after it was thown will be the gravety, which has a -y direction. This means that the x component of the velocity will remain constant, and only the y component will be affected, and can be described with the constant acceleration motion properties.

When an object that moves in constant acceleration motion, the time neccesary for it to desaccelerate from a velocity v to 0, will be the same to accelerate the object from 0 to v. And the distance that the object will travel in both desaceleration and acceleration will be exactly the same.

So, when the javelin its thrown, it willgo up until its velocity in the y component reaches 0. Then it will go down, and it will reach reach the ground in the same amount of time it took to go up and, therefore, with the same velocity.

5 0
3 years ago
Determine the value of the information in scientific notation. The moon is approximately 3. 63 × 108 meters from Earth. What is
Usimov [2.4K]

Answer:

d

Explanation:

7 0
2 years ago
Change of 5000 c flows through a circuit in one hour. what is the current intensity?​
AleksandrR [38]

Answer:

I = 1.38 A

Explanation:

Given that,

Charge, q = 5000 C

Time, t = 1 hour = 3600 s

We need to find the current intensity. The current intensity is equal to the electric charge per unit time. It can be given by :

I=\dfrac{q}{t}

Substitute all the values in the above formula

I=\dfrac{5000\ C}{3600\ s}\\\\=1.38\ A

So, the current intensity is 1.38 A.

8 0
3 years ago
Other questions:
  • A truck drives 80 km in 2 hours. The truck stops for 1 hr and continues driving for 100
    6·1 answer
  • Infer why gases such as the oxygen used at hospitals are compressed. why must compressed gases be shielded from high temperature
    7·1 answer
  • How does volcanic ash in earth's atmosphere affect solar radiation?
    8·2 answers
  • What is the least possible initial kinetic energy kmin the oxygen atom could have and still excite the cesium atom?
    9·1 answer
  • You throw a rock straight up and find that it returns to your hand 3.40 s after it left your hand. Neglect air resistance. What
    14·1 answer
  • Which equations can be used to solve for acceleration? Check all that apply.<br><br>t = ​
    14·2 answers
  • Select all of the answers that apply. Which of the following make the Earth unique when compared to the other planets in our sol
    14·1 answer
  • What elements make up most of the mantle?
    8·2 answers
  • A go cart with a mass of 60 kg is moving at a rate of 10 m/s. How much Kinetic Energy does the go cart have?
    13·2 answers
  • Lesson 2 History of Physical Science
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!