This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A 1321-kg car climbs a 5.0 slope at a constant speed of 80km/s Assuming that air resistance may be ... (Read 39 times)

Medesa

  • Hero Member
  • *****
  • Posts: 507
on: Jul 29, 2018
A 1321-kg car climbs a 5.0 slope at a constant speed of 80km/s Assuming that air resistance may be neglected, at what rate (in kW) must the engine deliver energy to the drive wheels of the car?
 
  A) 25 kW B) 48 kW C) 287 kW D) 38 kW

Question 2

One unusual aspect of dark matter is
 
  A) it exerts no gravitational force.
  B) it moves faster than lightspeed.
  C) it exerts a new kind of fundamental force, never observed before.
  D) it does not interact with electromagnetic radiation.
  E) its gravitational force pushes (or repels) instead of pulling.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

olderstudent

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

D


Medesa

  • Member
  • Posts: 507
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

mjenn52

  • Member
  • Posts: 351
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Priming Affects the Speed of Respones on a Lexical Decision Task Priming Affects the Speed of Respones on a Lexical Decision Task
Acquired resistance. Acquired resistance.
When a 2.75-kg fan, having blades 18.5 cm long, is turned off, its angular speed decreases ... When a 2.75-kg fan, having blades 18.5 cm long, is turned off, its angular speed decreases ...
When 1.50 mol of CH4(g) reacts with excess Cl2(g) at constant pressure according to the ... When 1.50 mol of CH4(g) reacts with excess Cl2(g) at constant pressure according to the ...
Write equilibrium constant expressions for the following reactions in terms of concentration: Write equilibrium constant expressions for the following reactions in terms of concentration:
What is the total resistance of the circuit in Figure 1? 150 What is the total resistance of the circuit in Figure 1? 150
Video: DNA close up Animation

For a complete list of videos, visit our video library