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
notsponge [240]
3 years ago
11

Help in question a and b

Physics
1 answer:
Mkey [24]3 years ago
8 0
Can you write out the question please? :) Sorry, i don't see it on the paper
You might be interested in
What type of wave shows wave-particle duality? Mechanical or Electromagnetic?
Dafna11 [192]
Mechanical wave shows dual nature
4 0
3 years ago
Read 2 more answers
10. A child drops a ball from a window. The ball strikes the ground in 3.0 seconds. What is the velocity of the ball the instant
vladimir1956 [14]
The velocity of the ball is 30.0 m/s.
5 0
3 years ago
The height (in meters) of a projectile shot vertically upward from a point 2 m above ground level with an initial velocity of 23
Burka [1]

Answer:

a) v(2) = 3.9\,\frac{m}{s}, b) v(4) = -15.7\,\frac{m}{s}

Explanation:

a) The equation for vertical velocity is obtained by deriving the function with respect to time:

v(t) = 23.5 -9.8\cdot t

The velocities at given instants are, respectivelly:

v(2) = 3.9\,\frac{m}{s}

v(4) = -15.7\,\frac{m}{s}

8 0
3 years ago
A 2.0-kilogram cantaloupe rolling north at 4.0 meters per second collides head on with a 1.0-kilogram orange rolling south at 8.
Murrr4er [49]

Answer:

Hi how are you doing today Jasmine

8 0
2 years ago
Read 2 more answers
An unstrained horizontal spring has a length of 0.31 m and a spring constant of 220 N/m. Two small charged objects are attached
Kruka [31]
The solution you should use is Hooke's law: F=-kx

It should have the same signs because they repel due to the stretch of the spring. 

a. Since there is a constant energy within the spring, then Hooke's law will determine the possible algebraic signs. The solution should be 
<span>F = kx 
270 N/m x 0.38 m = 102.6 N 
</span>
b. Then use Coulomb's law; F=kq1q2/r^2 to find the charges produced in the force. 



8 0
3 years ago
Other questions:
  • A bird flew16 km west in 5 hours, then flew 20 km east in 6 hours. what was the birdâs velocity?
    13·1 answer
  • Two blocks can collide in a one-dimensional collision. The block on the left hass a mass of 0.40 kg and is initially moving to t
    6·2 answers
  • Terry can ride 30 miles in 2 hours. If his riding speed is
    10·2 answers
  • PLEASE HELP!!! WILL GET BRAINIEST FOR 5 SENTENCES
    11·1 answer
  • The model of the universe that the earth is in the center is called
    10·1 answer
  • 50 points if brainliest !!!!!!!!!!
    10·1 answer
  • Hii please help i’ll give brainliest!!
    7·1 answer
  • A cabbie is trying to stop when he notices a fare is whistling them over. The
    12·1 answer
  • Using a mass of 1. 8 g and the volume displaced by the sample, calculate the sample's density. Question 17 options: 0. 17 g/mL 0
    9·1 answer
  • Marc and Linh stretch out a long spring on the classroom floor. Marc holds one end of the spring still. Linh creates waves in th
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!