Which activity directly converts energy from the Sun into chemical energy?

9. A radioisotope has a half-life of 4.50 min and an initial decay rate of 8400 Bq. What will be the decay rate after 18.0 min?

Describe what might happen to the mass and/or distance between two objects to increase the gravitational force of attraction

A balloon is rubbed against a student's hair and then touched to a wall. The balloon "sticks" to the wall due to

What is narcolepsy?

The resultant force acting on an object of mass 5.0kg varies with time as shown. the object is initially at rest.

If the temperature of water warming on a hot plate rises 10 degrees Celsius [°C], what is the change in temperature in units of degrees Fahrenheit [°F]? g

Giant electric eels can deliver a voltage shock of 5.00 * 102 v and up to 1.00 a of current for a brief time. what is the maximum power a giant electric eel can deliver to its prey during this time?

What is the molecular geometry of a molecule with four bonding domains and one nonbonding domain?

A blue train of mass 50 kg moves at 4 m/s toward a green train of 30 kg initially at rest. The trains collide. After the collision the green train moves with a speed of 3 m/s. What is the final momentum of the blue and green train combined? A.

A) A 5.00-kg squid initially at rest ejects 0.250 kg of fluid with a velocity of 10.0 m/s. What is the recoil velocity of the squid if the ejection is done in 0.100 s and there is a 5.