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
Sindrei [870]
3 years ago
7

A ball starts from rest. It rolls down a ramp and reaches the ground after 4 seconds. Its final velocity when it reaches the gro

und is 7.0 meters/second. The initial velocity of the ball is meters/second, and its acceleration is meters/second2. NextReset
Physics
2 answers:
Sidana [21]3 years ago
8 0

Answer:

0 and 1.75

Explanation:

Hunter-Best [27]3 years ago
3 0
If it starts at rest the initial velocity is 0.
For an acceleration, a, and time, t, the velocity is v=at. Since at t=4, v=7, then a=7/4=1.75m/s^2
You might be interested in
Which of the following changes occurs during nuclear fission?
coldgirl [10]

Answer:

The parent nucleus splits into lighter daughter elements

Explanation:

Nuclear fission involves the splitting of nucleus of a lighter element with smaller particles

8 0
3 years ago
Objects 1 and 2 attract each other with a electrostatic force
algol13

Answer:

72.0 + 72.0 whatever you get for that answer

Explanation:

I don't know what else to put

5 0
2 years ago
A 10 kg mass car initially at rest on a horizontal track is pushed by a horizontal force of 10 N magnitude. If we neglect the fr
vlada-n [284]

Answer:

50 m

Explanation:

F = ma

10 N = (10 kg) a

a = 1 m/s²

Given:

v₀ = 0 m/s

a = 1 m/s²

t = 10 s

Find: Δx

Δx = v₀ t + ½ at²

Δx = (0 m/s) (10 s) + ½ (1 m/s²) (10 s)²

Δx = 50 m

5 0
3 years ago
One mole of water is equivalent to 18 grams of water. A glass of water has a mass of 200 g. How many moles of water is this?
Black_prince [1.1K]
200g*1 mole/ 18g=11.1 moles There are 11.1 moles of water. 
4 0
3 years ago
Read 2 more answers
the lines from the boxes show the positions of two of the parts that are present in both cells in the boxes write the names of t
denis-greek [22]
Box 1 = cell membrane
Box 2 = cytoplasm
6 0
3 years ago
Other questions:
  • A ladybug sits 14 cm from the center of a turntable spinning at 33.33 rpm. The Sun is shining horizontally through the window an
    10·1 answer
  • In the absence of air, a penny and a feather dropped from the same height will
    12·2 answers
  • Jenna is learning how to ice skate. She wants her mother to pull her along so that she has an acceleration of 0.76 m/s2. If Jenn
    13·1 answer
  • A solid ball is released from rest and slides down a hillside that slopes downward at an angle 51.0 ∘ from the horizontal. what
    11·1 answer
  • If Teresa's daughter is my daughters mother who am I to Teresa?
    9·2 answers
  • If an object on a horizontal frictionless surface is attached to a spring, displaced, and then released, it oscillates. Suppose
    12·1 answer
  • A runner slows down from a 9.50 m/s at a rate of 2.30 m/s^2 . (a) How far does she travel in the next 6.00 s? (b) What is her fi
    6·1 answer
  • An object has a. Kinetic energy of 17j and a mass of 27 kg, how fast is the object moving?
    14·1 answer
  • Two students go to play basketball. They notice the ball is flat (it won't bounce). They decide to pump it up with air. After it
    9·1 answer
  • A truck is parked outside. When the sun goes down, the temperature
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!