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
Tems11 [23]
4 years ago
11

What's the correct answer to this question?

Physics
1 answer:
BartSMP [9]4 years ago
4 0
B.

The original energy is mgh. The final energy is 1/2 mv^2.

The energy that is not converted to kinetic energy is the work done against resistive forces, which is mgh - 1/2 mv^2.
You might be interested in
Maintenance __________ are needed in great numbers to service all sorts of technical equipment.
damaskus [11]
Maintenance spanner are needed in great numbers to service all sorts of technical equipment
5 0
3 years ago
3.5
11111nata11111 [884]

Answer:

mass of hot water must be 97.80

Explanation:

3 0
3 years ago
Tommy runs his juicer every morning. The juicer uses 90 w of power & the current supplied in 4.5 A. How many volts are neces
Airida [17]

Answer:

20 Volts

Explanation:

<u>Ohm's Law and Power Equations</u>

Ohm's law equation (formula): V = I × R and the power law equation

(formula): P = I × V. P = power, I or J = Latin: influare, international ampere, or intensity and R = resistance. V = voltage, electric potential difference Δ V or E = electromotive force (emf = voltage).

Voltage or volts E or V: volts V

Resistivity or resistance R: ohms Ω

Wattage or power P: watts W

Amperage or current I: amperes, amps A

6 0
3 years ago
A spherical asteroid of average density would have a mass of 8.7×1013kg if its radius were 2.0 km.A)If you and your spacesuit ha
WITCHER [35]

A) 0.189 N

The weight of the person on the asteroid is equal to the gravitational force exerted by the asteroid on the person, at a location on the surface of the asteroid:

F=\frac{GMm}{R^2}

where

G is the gravitational constant

8.7×10^13 kg is the mass of the asteroid

m = 130 kg is the mass of the man

R = 2.0 km = 2000 m is the radius of the asteroid

Substituting into the equation, we find

F=\frac{(6.67\cdot 10^{-11})(8.7\cdot 10^{13} kg)(130 kg)}{(2000 m)^2}0.189 N=

B) 2.41 m/s

In order to orbit just above the surface of the asteroid (r=R), the centripetal force that keeps the astronaut in orbit must be equal to the gravitational force acting on the astronaut:

\frac{GMm}{R^2}=\frac{mv^2}{R}

where

v is the speed of the astronaut

Solving the formula for v, we find the minimum speed at which the astronaut should launch himself and then orbit the asteroid just above the surface:

v=\sqrt{\frac{2GM}{R}}=\sqrt{\frac{2(6.67\cdot 10^{-11})(8.7\cdot 10^{13} kg)}{2000 m}}=2.41 m/s

3 0
3 years ago
Felix connects a wire coil to an ammeter and moves a bar magnet around the
shutvik [7]

Answer:

answer is D

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose an astronaut in outer space wishes to toss a ball against a very massive and perfectly elastic concrete wall and catch i
    5·1 answer
  • A 5.0 kg medicine ball and a 7.0 kg medicine ball are the same size and shape. If you were in outer space, how would you determi
    13·1 answer
  • You throw a ball straight up. The ball has an initial speed of 11.2 m/s when it leaves your hand What is the maximum height the
    14·1 answer
  • A friend claims that the faster you read, the more you remember. Use your knowledge of effortful processing and effective encodi
    11·1 answer
  • Which is the best example of forces acting in the same direction
    11·2 answers
  • What is an advantage of using oil instead of wind to generate electricity?
    9·1 answer
  • Help guys <br><br> Jehdjdbdbxzjjxxjixhwvwbsbsbs
    11·1 answer
  • oscillating spring mass systems can be used to experimentally determine an unknown mass without using a mass balance. a student
    6·1 answer
  • What is the volume of an object that has Mass=100g and Density= 745g/mL.
    6·1 answer
  • I need help algebra in physics
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!