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
nadezda [96]
3 years ago
12

It is your parent's 25th Wedding Anniversary and you thought it would be special to throw them a surprise party. Your entire fam

ily is up north at your Traverse City cottage (240 miles from your home) and you plan on waking up early Saturday morning to drive home and set up for the party. You wake up at 10:00 am to head out but to your surprise your parents decide on leaving at 11:00 am instead of 1:00 pm like they originally planned. Your father ALWAYS drives 60 miles per hour on the expressway and it will take you about 2 hours to set up for the party. How fast must you drive in order to get home in enough time to make the surprise a success? Show your work.
Physics
1 answer:
KonstantinChe [14]3 years ago
4 0

Answer:

120 miles per hour.

Explanation:

We need to find the time it takes my parents to drive home from the cottage. Since my father drives at 60 miles per hour, and the cottage is 240 miles from our home, and distance = speed × time. So, time = distance/speed = 240 mi/60 mi/h = 4 h.

So, it will take my father 4 hours to drive home from the cottage.

Since I have 2 hours to prepare for the party, the time left for me to drive to the cottage is 4 - 2 hrs = 2 hrs.

So, I'm supposed to drive to the cottage in at most 2 hours.

The speed at which I must drive in this time period is thus,  speed = distance/time = 240 miles/2 hours = 120 miles per hour.

So, I must drive at a minimum speed of 120 miles per hour.

You might be interested in
PLEWSE SOMEONE HELP ILL MARK BRAINLIST
Margaret [11]

Answer:

D)

Explanation:

ffhjjxghjjcdddhhgfd

Brainliest pls ❤️

3 0
3 years ago
Read 2 more answers
I’ll literlly give you points <br> and make you brainiest
sesenic [268]

Answer:

a

Explanation:

4 0
3 years ago
what is the force constant, in newtons per meter, needed to produce a period of 0.45 s for a 0.011-kg mass on the spring?
topjm [15]

The force constant is 2.145 N/m.

<h3>What is spring constant?</h3>
  • The spring constant is the force required to stretch or compress a spring divided by the distance traveled by the spring. It is used to determine whether a spring is stable or unstable.
  • K is the proportionality constant, also known as the 'spring constant.' Hooke's law (F = -kx) specifies stiffness and strength via the k variable. The greater the value of k, the greater the force required to stretch an object to a given length.

Using the relation;

T = 2π√m/k

T = time period = 0.45 s

m =  mass of object in kilograms = 0.011kg

k = spring constant

To find k based on the formula,

k = 4 × (3.142)^2 × 0.011 / (0.45 )^2

k = 2.145 N/m

Therefore the force constant is 2.145 N/m.

To learn more about force refer to :

brainly.com/question/12785175

#SPJ4

8 0
1 year ago
If a cup of coffee is at 90°C and a person with a body temperature of 36'C touches it,how will heat flow between them
Arlecino [84]

Answer:

the heat always transfers from high temperature to low temperature body without aid of any external energy to this law the heat transfers from cup of coffee to the person body until both bodies reaches to the equilibrium state    

Explanation:

5 0
3 years ago
The potential difference between the plates of an air-filled parallel-plate capacitor with a plate separation of 4 cm is 51 V. W
Salsk061 [2.6K]

Answer:

Explanation:

Electric field between plates of a parallel plate capacitor is uniform .

In a uniform electric field , relation between electric field and potential gradient is as follows

electric field = potential gradient               [ E = - dV / dl ]

in the given case ,

dV = 51 V  ,

dl = 4 cm

=  4 x 10⁻² m

E = 51 /  4 x 10⁻²

= 12.75 x 10² V / m

= 1275 V / m

6 0
3 years ago
Other questions:
  • Force can be represented by
    7·1 answer
  • The periodic table is arranged by the number of neutrons is that statement true
    13·2 answers
  • What is the maximum value of the magnetic field at a<br> distance2.5m from a 100-W light bulb?
    8·1 answer
  • What is the acceleration of the object?<br><br> 0 m/s2<br> 0.25 m/s2<br> 4 m/s2<br> 8 m/s2
    15·2 answers
  • Can someone help with these/
    8·1 answer
  • How is the DNA in humans similar and different to DNA in other organisms ?
    12·1 answer
  • You are given three pieces of wire that have different shapes (dimensions). You connect each piece of wire separately to a batte
    6·1 answer
  • You are asked to construct a mobile with four equal m = 141 kg masses, and three light rods of negligible mass and equal lengths
    9·1 answer
  • Why is physics worth knowing about
    10·1 answer
  • Which kind of wave moves back and forth along the direction of the wave?.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!