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
Tanzania [10]
3 years ago
11

PLZZZ HELP

Physics
1 answer:
Doss [256]3 years ago
4 0

Answer/Explanation:

The weight of an object is defined as the force that is exerted due to the gravitational force.

Mathematically, it can be written as :

W = m g

Where

m is the mass of the object

g is the acceleration due to gravity

Also,  

We know that the value of g varies with respect to the location. At the equator, the value of g is less as compared to the poles.

The feature of an object that affects its weight are :

Mass of the object

Location of the object

How much force Earth exerts on the object

You might be interested in
In a crash test, a car with a mass of 1600 kg is initially moving at a speed of 20 m/s just before it collides with a barrier. T
Andrews [41]

Answer:

The answer to the given points can be defined as follows:

Explanation:

In point 1:

\bold{v_f^2=  v_i^2+2as}\\\\\to v_f=0\\\\\to v_i=20 \frac{m}{s}\\\\\to s= 4.50\ m -3.60 \ m \\\\

      =0.9 \ m \\

put the value in the above formula:

\to 0=  20^2+2 \times a \times 0.9\\\\\to -1.8\ a=400\\\\\to -a= \frac{400}{1.8} \\\\ \to a= -222.22\ \  \frac{m}{s^2}

 \bold{v_f=v_i+at}\\\\\to 0=20+ (-222.22)t\\\\\to  222.22t=20\\\\\to t=\frac{20}{222.22}\\\\\to t= 0.0900 \ s\\\\\to v_{avg}=\frac{s}{t}=\frac{0.9}{t}= 10\ \frac{m}{s}

for point 2:

t= 0.0900 \ s  -\text{found above}

for point 3:

\to |a| = 222.22 \frac{m}{s^2} \text{found above}\\\\\to \bold{|F| = m \cdot |a|}\\\\

         =1600 \ kg \times 222.22 \ \frac{m}{s^2} \\\\= 3.55\times 10^{5} \ N

5 0
3 years ago
What is impossible for a machine to do?
Art [367]

Answer:

A) do a greater amount of work than the amount of work done on the machine

Explanation:

By the principle of conservation of energy, energy can never be created or destroyed.

To do more work by a machine than the amount of work done on the machine is impossible because to do so machine will have to create energy within itself which violates the principle of conservation of energy.

Extra bit,

These kind of machine are defined as perpetual-motion machines and there are many attempts in history to create one such device but all were failed.

4 0
3 years ago
Read 2 more answers
A 1500-nF capacitor with circular parallel plates 2.0 cm in diameter is accumulating charge at the rate of 40.0 mC/s at some ins
Delvig [45]

Answer:

B= 1.14 X 10^{-7} Tesla

Explanation:

B at point 7.0 cm radially outward is to find out?

Now for field strength in case of parallel plates in given as

        B=\frac{I\mu}{2r\pi}

        B=\frac{4\pi X 10^{-7} \frac{Tm}{A}X40 X10^{-3} \frac{C}{s}}{2X0.07mX\pi}

      B= 1.14 X 10^{-7} Tesla

For the second part as Capacitor is fully charged no more flow of current could take place hence

I= Current =o

so B = 0

6 0
3 years ago
Why do objects move at constant speed
kati45 [8]
Most objects move at a constant speed because of friction and acceleration. The constant speed keeps them in place, and keeps a balance. 
7 0
4 years ago
Which is an example of velocity?
Dima020 [189]
I think the answer is A
3 0
3 years ago
Other questions:
  • Give 5 examples of physical properties that could be used to describe a solid
    10·1 answer
  • The voltage between the cathode and the screen of a television set is 30 kV. If we assume a speed of zero for an electron as it
    15·1 answer
  • . MONEY The Wayside Hotel charges its guests $1 plus $0.80 per minute for long distance calls. Across the street, the Blue Sky H
    6·1 answer
  • Which is not an element? Water , Arsenic, sodium, Aluminum
    8·2 answers
  • Electromagnetic energy that is invisible to the human eye is known as
    12·1 answer
  • How is radiometric dating done? A. The ratio of the isotopes from two different elements is compared over time. B. The ratio of
    10·1 answer
  • Which would show an example of how physical changes are reversible? cutting a gold bar in two pieces and then putting the pieces
    15·2 answers
  • How can the starch be removed from the leaves of potted plants​
    7·1 answer
  • Help with this please
    10·2 answers
  • Alpha and beta rays origin is same
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!