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
riadik2000 [5.3K]
3 years ago
9

A box is pulled up a rough ramp that makes an angle of 22

Physics
1 answer:
Svetradugi [14.3K]3 years ago
3 0

Answer:

139 N

Explanation:

Thats the answer on e2020

You might be interested in
The power in an electrical circuit is given by the equation p=/2 R, where /is the current flowing through the circuit and R is t
zzz [600]

Complete Question:

What is the power in a circuit that has a current of 12 amps and a resistance of 100 ohms?

Answer:

D. 14,400 watts

Explanation:

The electrical power of an electric circuit can be defined as a measure of the rate at which energy is either produced or absorbed in the circuit.

Mathematically, electrical power is given by the formula;

Electrical \; power = current * voltage

This ultimately implies that, the quantity (current times voltage ) is electrical power and it is measured (S.I units) in Watt (W).

<u>Given the following data;</u>

  • Current = 12 Amperes
  • Resistance = 100 Ohms

To find the power in the circuit, we would use the following formula;

Power = I²R

Where;

  • I is current measured in Amperes.
  • R is resistance measured in Ohms.

Power = 12² * 100

Power = 144 * 100

<em>Power = 144,000 Watts</em>

4 0
3 years ago
What are conduction, convection and radiation?
kaheart [24]

Those are the three ways that heat can move
from one place to another.

There aren't any other ways.

3 0
3 years ago
PLEASE HELP AS SOON AS POSSIBLE ILL MARK BRALIEST TO WHOEVER IS CORRECT
Reptile [31]

Answer:

There are two significant figures in 2.200 x 10^7

3 0
3 years ago
How does the work required to accelerate a particle from 10 m/s to 20 m/s compare to that required to accelerate it from 20 m/s
poizon [28]

To solve this problem we will apply the energy conservation theorem for which the work applied on a body must be equivalent to the kinetic energy of this (or vice versa) therefore

W = \Delta KE

\Delta W = \frac{1}{2} (m)(v_f)^2 -\frac{1}{2} (m)(v_i)^2

Here,

m = mass

v_{f,i} = Velocity (Final and initial)

First case) When the particle goes from 10m/s to 20m/s

\Delta W = \frac{1}{2} (m)(v_f)^2 -\frac{1}{2} (m)(v_i)^2

\Delta W = \frac{1}{2} (m)(20)^2 -\frac{1}{2} (m)(10)^2

W_1 = 150(m) J

Second case) When the particle goes from 20m/s to 30m/s

\Delta W = \frac{1}{2} (m)(v_f)^2 -\frac{1}{2} (m)(v_i)^2

\Delta W = \frac{1}{2} (m)(30)^2 -\frac{1}{2} (m)(20)^2

W_1 = 250(m) J

As the mass of the particle is the same, we conclude that more energy is required in the second case than in the first, therefore the correct answer is A.

5 0
4 years ago
A single atom of an element has 21 neutrons, 20 electrons, and 20 protons. Which element is it?
olga55 [171]
The answer would be Ca. Calcium
8 0
4 years ago
Read 2 more answers
Other questions:
  • If one newton of force accelerates a block at 1 m/s2. Predict what the acceleration would be if we applied twice the force to a
    10·1 answer
  • How do you use the lever (simple machines)
    8·1 answer
  • A weather balloon travels upward for 6 km whi le the wind blows it 10 km north and 8 km east. Approximately what is its final di
    14·1 answer
  • A force of 5 N accelerates an object. The object’s mass is 50 g. What is the acceleration of the object? (Formula: F=ma)
    15·2 answers
  • The current stellar "yardstick" is the ______
    13·2 answers
  • What is the meaning of Cardiovascular Fitness
    15·2 answers
  • When Holly injures her shoulder playing baseball, she uses an instant ice pack to reduce the swelling. She breaks the inner, act
    14·1 answer
  • Which has more gravitational potential energy: a 300 N cat at a height of 6 meters or a 50 N bird at a height of 50 meters
    11·1 answer
  • Who is the Prime Minister of India​
    7·2 answers
  • Plzzz halp mehhh (science)
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!