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
velikii [3]
3 years ago
6

Please help I’ll give brainliest

Physics
1 answer:
lilavasa [31]3 years ago
8 0

Answer: AHH PROBABLY THE FIRST OPTION

You might be interested in
A ball, which has a mass of 1.25 kg, is thrown straight up from the top of a building 225 meters tall with a velocity of 52.0 m/
Anastasy [175]

First we will find the speed of the ball just before it will hit the floor

so in order to find the speed of the cart we will first use energy conservation

KE_i + PE_i = KE_f + PE_f

\frac{1}{2}mv_i^2 + mgh = \frac{1}{2}mv_f^2 + 0

\frac{1}{2}(1.25)(52)^2 + 1.25(9.8)(225) = \frac{1}{2}(1.25)v_f^2

So by solving above equation we will have

v_f = 84.3 m/s

now in order to find the momentum we can use

P = mv

P = 1.25 \times 84.3

P = 105.4 kg m/s

3 0
3 years ago
Tom says that insulation keeps out the cold. Explain why this statement is incorrect. What should Tom have said?
Zina [86]
There is no such thing as"cold", in the same way that there is no such thing
as "darkness" or "quietness".  "Darkness" is the absence of light, "quietness"
is the absence of sound, and "cold" is the absence of heat.

Tom should have said that insulation <em>keeps the heat in</em> .
4 0
3 years ago
Read 2 more answers
A mass of 25kg is moving and is stopped in 1.2 seconds with an acceleration of 1.0 m/s squared what is the force on the mass?
Phantasy [73]
F=ma therefore 25kg*1.0m/s^2=25N force on the mass
6 0
3 years ago
What is the magnitude momentum of a 2 kg body that moves with a speed of 3 m/s? (1 point)
Naya [18.7K]

Answer:

<h2>D</h2>

Explanation:

The momentum of an object can be found by using the formula

momentum = mass × velocity

From the question

mass = 2 kg

velocity/speed = 3 m/s

We have

momentum = 2 × 3 = 6

We have the final answer as

<h3>6 kg.m/s</h3>

Hope this helps you

7 0
3 years ago
Juanita made an electromagnet by placing an iron bar inside a coil of wire and then running current through the wire. After awhi
swat32

Answer: Correct Ans is B

Explanation:

5 0
3 years ago
Other questions:
  • Kayla drew a diagram to compare convex and concave lenses. Which labels belong in the areas marked X, Y, and Z? X: Causes light
    6·1 answer
  • Double Question, 20 points and brainlyest if possible
    7·1 answer
  • Bohr's model is sometimes called the ________ model because it resembles a mini-solar system.
    12·2 answers
  • Select the correct statement to describe when a sample of liquid water vaporizers into water vapor
    10·1 answer
  • A race car exerts 18,344 N while the car travels at an acceleration of 92.54 m/s2. What is the mass of the car? (Use the formula
    12·2 answers
  • At what age can a child begin to form large concepts such as objects, people, animals, and events?
    12·1 answer
  • A rock is dropped from a tower 70.0 m high. How long does it take for the rock to hit the ground? *
    15·1 answer
  • A photon is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized.
    5·1 answer
  • What is the electric field at the point x=6.5 m? positive e-fields point to the right.?
    8·1 answer
  • A person stands 6.00 m from a speaker, and 8.00 m from an identical speaker. What is the wavelength of the first (n=1) interfere
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!