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
Mademuasel [1]
3 years ago
7

20 points?!!!!!!please help I need this asap

Physics
1 answer:
IgorLugansk [536]3 years ago
6 0
F - F_f = ma

We are trying to find F.

F - 15 = 30(1.5)

F - 15 = 45

F = 60 N
You might be interested in
Can yall help me please?? I can't get it wrong!
Scrat [10]

Answer:

The answer should be C

Explanation:

7 0
3 years ago
Read 2 more answers
An object is moving at 10 m/s slows to 6 m/s in 4 seconds. What is its average acceleration?? Help pls!!
Ivahew [28]
You need to find the acceleration . a=v-vo/t
a=6-10/4
a=-4/4
a=-1m/s/s or -1m/s^2
You’re welcome :)
6 0
3 years ago
A cannonball is fired from a cliff that is 50 meters above the ground. The cannonball is fired horizontally with a speed of 120
tankabanditka [31]

The horizontal distance that the cannonball will travel is 383.33m

In order to find the horizontal distance, we will use the formula for calculating the range expressed as:

R = u\sqrt{\frac{2H}{g} } where:

u is the velocity

H is the height

g is the acceleration due to gravity

R = 120\sqrt{\frac{2(50)}{9.8} }\\R = 120\sqrt{\frac{100}{9.8} } \\R=120\times 3.1943\\R=383.33m

Hence the horizontal distance that the cannonball will travel is 383.33m

Learn more here: brainly.com/question/19028766

4 0
2 years ago
Circumference of a circle given the radius or diameter? explain why or why not
djyliett [7]

Circumference of a circle can be calculated if the radius or the diameter is given.

<u>Explanation</u>:

  • Circumference or the perimeter of a circle can be calculated if the radius or the diameter of the circle is given.
  • This is calculated by the formula -  2 * pi * r (if radius is given) and  pi * d (if diameter is given) where pi = 3.14, r = radius and d = diameter
  • This calculation is based on the fact that the circumference is three and a little more times that of the radius. Since the diameter is double that of the radius, when the diameter is given formula becomes pi*d.
3 0
3 years ago
A ball is thrown straight up in the air and just before it lands it is travelling -47.5 m/s. How long was the ball in the air?
Setler [38]
Use v = u + at
Message me if you need more help
6 0
3 years ago
Other questions:
  • What term is used to describe the hot ash, gases, and materials being erupted at speeds of up to 400 mph?
    11·1 answer
  • Below is a list of characteristics for electric and magnetic fields. Put an "E" in front of the statement if it applies only to
    9·1 answer
  • . List five endothermic reactions that are going on around you.
    13·1 answer
  • On an amusement park ride, riders stand inside a cylinder of radius 8.0 m. At first the cylinder rotates horizontally. Then afte
    15·1 answer
  • What is a short water cycle that takes a short time to complete
    10·2 answers
  • Which statement correctly describes the formation of electric current?
    6·1 answer
  • Si se arroja una ròca en sentido horizontal desde un barranco de 100 m de altura. Choca
    8·1 answer
  • Which of the following shows acceleration? *
    8·2 answers
  • What mathematical expression do you use to calculate the pressure due to liquid at a given depth? Explain each term.​
    10·1 answer
  • It is desired to project the image of an object five times it's actual size using a lens of focal length 30 cm how far from the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!