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
Anit [1.1K]
3 years ago
7

A roller-coaster car moves 172 ft horizontally and then rises 115 ft at an angle of 31.0° above the horizontal. it next travels

115 ft at an angle of 48.0° downward (below the horizontal). what is its displacement from its starting point? (assume the initial horizontal motion of the car to be along the +x axis.)
Physics
1 answer:
lianna [129]3 years ago
4 0

172 + 115 cos 31 +115 cos 48 horizontally

115 sin 31 - 115 sin 48  vertically

possibly need some drawing

You might be interested in
In terms of the scientific definition of work magnetic fields can do work but electric fields can not true or false
ElenaW [278]

Answer: False

Explanation:

8 0
4 years ago
An electric heater is rated at 1400 W, a toaster is rated at 1150 W, and an electric grill is rated at 1560 W. The three applian
gayaneshka [121]

Answer:

The current in the heater is 12.5 A

Explanation:

It is given that,

Power of electric heater, P₁ = 1400 W

Power of toaster, P₂ = 1150 W

Power of electric grill, P₃ = 1560 W

All three appliances are connected in parallel across a 112 V emf source. We need to find the current in the heater. We know that in parallel combination of resistors the current flowing in every branch of resistor divides while the voltage is same.

Electric power, P_1=V\times I_1

I_1=\dfrac{P_1}{V}

I_1=\dfrac{1400\ W}{112\ V}

I_1=12.5\ A

So, the current in the heater is 12.5 A. Hence, this is the required solution.  

8 0
4 years ago
Someone please help asap
Minchanka [31]
Huhhhh this is confusing ummm hello I guess
7 0
3 years ago
A plant is thrown straight
olchik [2.2K]

The time taken for the plant to hit the ground from a distance of 7.01m and at a velocity of 8.84m/s is 1.59s.

<h3>How to calculate time?</h3>

The time taken for a motion to occur can be calculated using the following formula:

v² = u² - 2as

Where;

  • v = final velocity
  • u = initial velocity
  • s = distance
  • a = acceleration

8.84² = 0² + 2 × a × 7.01

78.15 = 14.02a

a = 5.57m/s²

V = u + at

8.84 = 0 + 5.57t

t = 1.59s

Therefore, the time taken for the plant to hit the ground from a distance of 7.01m and at a velocity of 8.84m/s is 1.59s.

Learn more about time at: brainly.com/question/13170991

#SPJ1

4 0
2 years ago
I<br> What are physical properties of matter?
mariarad [96]

Answer:

appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity

Explanation:

7 0
3 years ago
Other questions:
  • According to Newton's first law, if an object is slowing down, what must be happening? A. No forces are acting on it. B. A singl
    7·1 answer
  • Which of the following is not a force causing plate motion?
    11·2 answers
  • Which equation can be used to solve for acceleration? <br><br>​
    6·2 answers
  • A force of 6.00 newtons on a car's bumper makes an angle of 28.5 degrees with the ground. What is the vertical component of this
    9·1 answer
  • The talk test can be used to measure the __________. A. knowledge of an activity B. intensity of an activity C. length of an act
    5·2 answers
  • A marble of mass m initially at rest at height h moves along a frictionless rail that forms a hoop of radius R. At the end of th
    10·1 answer
  • a coin is dropped from the top of a tall building. determine the coin's (a) velocity and (b) displacement after 1.5 sec.
    12·1 answer
  • DL: Activity 2.3 Resistance Complete the questions based on the Resistance presentation. a. All resistors ___________ or _______
    13·1 answer
  • A child in a boat throws a 6-kg package horizontally to the right with a speed of 8 m/s.
    12·1 answer
  • Rooms are fitted with ventilators to let the air move around. The phenomenon involved is:
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!