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
NISA [10]
3 years ago
7

If T, = 40 N, find T, and the mass of the weight (W).

Physics
1 answer:
seraphim [82]3 years ago
5 0

Answer:4kg

Explanation:

acceleration due to gravity(g)=10m/s^2

Weight(w)=40N

Weight=mass x g

40=mass x 10

Divide both sides by 10

Mass =40/10

Mass=4kg

You might be interested in
In each of two coils the rate of change of the magnetic flux in a single loop is the same. The emf induced in coil 1, which has
Nat2105 [25]

Answer:

303

Explanation:

We are given that

Emf in coil 1,E_1=3.13 V

Emf induced in coil 2,E_2=4.16 V

Number of loops in coil 1,N_1=228

We have to find the number of loops in coil 2.

Rat of change of magnetic flux in a single loop is same.

Let \phi_1 and \phi_2 be the magnetic flux in coil 1 and coil 2.

\frac{d\phi_1}{dt}=\frac{d\phi_2}{dt}

\frac{V_2}{V_1}=\frac{N_2}{N_1}

Using the formula

\frac{E_2}{E_1}=\frac{N_2}{N_1}

\frac{4.16}{3.13}=\frac{N_2}{228}

N_2=\frac{4.16}{3.13}\times 228

N_2=303

Hence, the number of loops in coil 2=303

5 0
3 years ago
At high noon, the sun delivers 1150 w to each square meter of a blacktop road. if the hot asphalt loses energy only by radiation
Pie
Stephen`s Law:
P = (Sigma) · A · e · T^4
P in = P out
e = 1 for blacktop;
1150 W = (Sigma) · T^4
(Sigma) = 5.669 · 10 ^(-8) W/m²K^4
T^4 = 1150 : ( 5.669 · 10^(-8) )
T^4 = 202.875 · 10^8
T =  \sqrt[4]{202.857 * 10 ^{8} }
T = 3.774 · 10² = 377.4 K
Answer: Equilibrium temperature is 377.4 K. 
3 0
3 years ago
A 2.0 kg mass weighs 10 Newtons on planet X. what is the acceleration due to gravity on planet X? Show the work.
KengaRu [80]

Answer: The gravitational acceleration on planet X is 5 N/kg

On Earth (with the gravitational accelartion g_E) the mass of 2kg will correspond to

F_E = m\cdot g_E = 2.0 \mbox{kg}\cdot 9.8 \frac{N}{kg} = 19.6 N

On planet X we are told the same measure is only 10N. Since there is a proportional relationship between g and F, we can calculate g_X:

\frac{F_E}{g_E}=\frac{F_X}{g_X} \implies\\g_x = \frac{g_E\cdot F_X}{F_E}=\frac{9.8 N/kg \cdot 10 N }{19.6N}=5 \frac{N}{kg}

8 0
3 years ago
Imagine that you are driving in your car with a heavy bag of groceries on the front seat and you slam on your brakes to stop. Th
Alexxx [7]

Answer:

The correct answer is inertia.

Explanation:

The heavy bag of groceries is initially within the inertia frame of the car. This indicates that the heavy bag acquires the same speed as the car.

When the car stops, the heavy bag continues to move forward with the speed it had due to the principle of inertia, which states the property that the bodies cannot modify by themselves the state of rest or movement in which they are.

Have a nice day!

8 0
3 years ago
ASAP ONLY CORRECT ANSWERS PLZZZZZZZZZZZZZ
ycow [4]

Answer b

Explanation:

thank me later

5 0
3 years ago
Read 2 more answers
Other questions:
  • Water enters a centrifugal pump axially at atmospheric pressure at a rate of 0.09 m3/s and at a velocity of 3 m/s, and it leaves
    14·1 answer
  • A 72.0-kg object hits the ground at a velocity of 79.0 m/s. Neglecting air resistance, which relationship allows you to calculat
    9·1 answer
  • The big bang produced an imprint of leftover heat called _____. hydrogen cosmic heat CMB radiation redshift
    5·2 answers
  • A star has a declination of approximately 45°. Which of these statements is correct about the star?
    8·1 answer
  • hi im learning about zodiac sign can u share urs and what are some things u like to do im a aquarius i play vollyball and sing t
    7·1 answer
  • Work done by friction?
    12·2 answers
  • For which planet is the length of the plants day longer than the planets year
    8·1 answer
  • The following number - 0.050437 - written to TWO significant figures would be
    12·1 answer
  • A 15 g ball at the end of 2.4 m string is swung in the horizontal circle. It revolves once every 2.09 s. What is the magnitude o
    7·1 answer
  • Find the momentum (in kg m/s) for a 1.6 kg brick parachuting straight downward at a constant speed of 9.9 m/s.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!