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4 years ago

What is the direction of the tangential speed when a car is driving around a circular curve?

2 answers:

8 0

You're not going to believe this coincidence:. The "tangential" speed is the speed in the direction of the "tangent" to the circle. That's straight ahead, in the direction the car is moving. Since the car is driving in a circle, the tangential direction keeps changing.

Neporo4naja [7]4 years ago

3 0

straight ahead, in the direction the car is moving

Explanation:

when an object is moving around a circular curve, the tangential speed of the object has a direction which is tangent to the curve: therefore, it must go straight ahead, in the direction the car is moving.

On the contrary, the centripetal acceleration of the object (which keeps the object in circular motion) has a direction which is toward the center of the curve.

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A baseball travels 150 km/h. What does this measurement represent?

svet-max [94.6K]

The best answer to the question that is being presented above would be the speed. Since speed is characterized by distance/time, the 150 km/h is one example of a measurement of speed. Thus, the correct answer should be letter b. which is speed.

5 0

3 years ago

A 5200w electric oven

OLga [1]

Answer:

104 kWh

Explanation:

To calculate the kWh you multiply power with the amount of hours.

So for this we take 5200 W × 20 = 104 000 Wh

Then change Wh to kWh so that makes 104 kWh

8 0

2 years ago

A magnetic field is used to suspend a wire of mass 0.05 kgkg and length 0.16 mm . The wire is carrying a current of 11 AA . What

pochemuha

Answer:

$B=0.27840\ T$

Explanation:

Given:

mass of the wire, $m=0.05\ kg$

length of the wire, $L=0.16\ m$

current in the wire, $I=11\ A$

Now form the Lorentz force we know that every current carrying wire experiences a magnetic force on it due to the magnetic field components perpendicular to it.

Mathematically given as:

$F=I.L\times B$

$m.g=I.L\times B$

here: we nee to balance the gravitational force on the mass.

$B=$ magnetic field

$0.05\times 9.8=11\times 0.16\times B$

$B=0.27840\ T$

This magnetic field must be perpendicular to the direction of current in the wire and the these two directional quantities must lie in a plane normal to the direction of gravity according to the Fleming's left hand rule.

7 0

3 years ago

What is the maximum height to which a motor

Natasha_Volkova [10]

Answer:

4.16 m

Explanation:

7 0

3 years ago

Here is an acceleration vs. time graph. what is the change in velocity between 2s and 4s?

yulyashka [42]

Explanation:

From 2s, velocity increased gradually up to 4s

5 0

3 years ago