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
Softa [21]
2 years ago
9

I need help please ASAP

Physics
2 answers:
mash [69]2 years ago
6 0

Answer:

Have a great day..

Explanation:

01)275 miles=c

02)42 miles=c

03)15mph=d

04)7 hours=c

05)5.7mph=b

den301095 [7]2 years ago
5 0

Answer:

1st. C            

2nd. C

3rd. D

4th. C

Explanation:

You might be interested in
A solenoid of length 10 cm has 247 turns and a magnetic field at the center of 1.2 T. What is the current through the solenoid?
elena55 [62]

Answer:

386.6 A

Explanation:

We are given;

Solenoid length; L = 10 cm = 0.1 m

Number of turns; N = 247

Magnetic field; B = 1.2 T

Now, at the centre of a long solenoid of N turns/metre carrying a current(I), the formula for the magnetic field is given as;

B = μ_oNI/L

Making I the subject we have;

I = BL/μ_oN

Where μ_o is the vacuum of permeability and has a constant value of 4π × 10^(−7) H/m

Thus;

I = (1.2 × 0.1)/(4π × 10^(−7) × 247)

I = 386.6 A

6 0
2 years ago
The commutator of a universal motor connects each armature coil to
tatiyna
The answer is a. the rotor
4 0
2 years ago
Read 2 more answers
What type of energy to high frequency waves have?
babunello [35]

Answer:

Gamma rays is the correct answer.

Explanation:

8 0
3 years ago
A horizontal force of 50 N is applied to the object.
USPshnik [31]

Answer:

Mass of object (m) = 5.102 kg

Explanation:

Given:

Horizontal Force (F) = 50 N

Find:

Mass of object (m) = ?

Computation:

We know that, acceleration due to gravity (g) = 9.8 m/s²

⇒ Horizontal Force (F) = mg

⇒ 50 N = m (9.8 m/s²)

⇒ Mass of object (m) =  50 / 9.8

⇒ Mass of object (m) = 5.102 kg

Mass of object (m) is 5.1 kg (Approx)

3 0
3 years ago
When is thermal equilibrium achieved between two objects?
ki77a [65]
Thermal equilibrium is when a hot and cold object (could also be air) come in contact with each other and over time become the same temperature.
thermal equilibrium is reached when both objects are the same temperature.
4 0
3 years ago
Read 2 more answers
Other questions:
  • An element in group IIA would form a __________ ion while an element in group VIIA would form a(n) __________ ion.
    5·1 answer
  • A box has a mass of 10.5 kg and has compressed a spring (with a spring constant of 71.7 N/m by 0.888m. The box is released from
    10·1 answer
  • A river flows from south to north at 5.4 km/hr. on the west bank of this river, a boat launches and travels perpendicular to the
    5·1 answer
  • The cart is initially at rest. Force F⃗ is applied to the cart for time Δ t, after which the car has speed v. Suppose the same f
    15·1 answer
  • Which of the following statements is true about the potential energy found in fossil fuels?
    14·1 answer
  • a garden hose of diameter 2cm is used to fill 1000 litre container in a time of 10 minutes.calculate the flow rate in cubic cm p
    6·1 answer
  • Cómo crees que la actividad física mejora tu salud mental​
    9·1 answer
  • A 2kg pumpkin is thrown with a velocity of 15m/s towards a
    9·1 answer
  • When you see a quantity like 20 m/s N, how do you know that it's a vector quantity and not a scalar quantity?
    15·1 answer
  • While in Earth's orbit, an 80-kg astronaut carrying a 20-kg tool kit is initially drifting toward a stationary space shuttle at
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!